components: do not harcode version of wanted python/gcc when any one works

See merge request !720

component/PyWavelets/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../numpy/openblas.cfg
   ../cython/buildout.cfg
   ../scipy/buildout.cfg
@@ -20,8 +19,6 @@ setup-eggs =
   ${scipy:egg}
   ${cython:egg}
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib
 
 [PyWavelets-repository]
@@ -42,6 +39,4 @@ setup-eggs =
   ${numpy:egg}
   ${scipy:egg}
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib

component/bazel/bazel_tools_cpp_CROSSTOOL.in

@@ -105,15 +105,14 @@ toolchain {
   target_system_name: "local"
   toolchain_identifier: "local_linux"
 
-  tool_path { name: "ar" path: "{{ binutils_path }}/ar" }
-  tool_path { name: "compat-ld" path: "{{ binutils_path }}/ld" }
-  tool_path { name: "cpp" path: "{{ cpp_path }}" }
+  tool_path { name: "ar" path: "{{ binutils_location }}/bin/ar" }
+  tool_path { name: "compat-ld" path: "{{ gcc_location }}/bin/ld" }
+  tool_path { name: "cpp" path: "{{ gcc_location }}/bin/cpp" }
   tool_path { name: "dwp" path: "/usr/bin/dwp" }
-  tool_path { name: "gcc" path: "{{ gcc_path }}" }
+  tool_path { name: "gcc" path: "{{ gcc_location }}/bin/gcc" }
   cxx_flag: "-std=c++0x"
   linker_flag: "-lstdc++"
   linker_flag: "-B/usr/bin/"
-  linker_flag: "-Wl,rpath={{ gcc_lib64_path  }}"
 
   # TODO(bazel-team): In theory, the path here ought to exactly match the path
   # used by gcc. That works because bazel currently doesn't track files at
@@ -122,19 +121,19 @@ toolchain {
   cxx_builtin_include_directory: "/usr/lib/gcc/"
   cxx_builtin_include_directory: "/usr/local/include"
   cxx_builtin_include_directory: "/usr/include"
-  cxx_builtin_include_directory: "{{ include_path }}"
-  tool_path { name: "gcov" path: "{{ gconv_path }}" }
+  cxx_builtin_include_directory: "{{ gcc_location }}/include"
+  tool_path { name: "gcov" path: "{{ gcc_location }}/bin/gconv" }
 
   # C(++) compiles invoke the compiler (as that is the one knowing where
   # to find libraries), but we provide LD so other rules can invoke the linker.
-  tool_path { name: "ld" path: "{{ binutils_path }}/ld" }
+  tool_path { name: "ld" path: "{{ gcc_location }}/bin/ld" }
 
-  tool_path { name: "nm" path: "{{ binutils_path }}/nm" }
-  tool_path { name: "objcopy" path: "{{ binutils_path }}/objcopy" }
+  tool_path { name: "nm" path: "{{ binutils_location }}/bin/nm" }
+  tool_path { name: "objcopy" path: "{{ binutils_location }}/bin/objcopy" }
   objcopy_embed_flag: "-I"
   objcopy_embed_flag: "binary"
-  tool_path { name: "objdump" path: "{{ binutils_path }}/objdump" }
-  tool_path { name: "strip" path: "{{ binutils_path }}/strip" }
+  tool_path { name: "objdump" path: "{{ binutils_location }}/bin/objdump" }
+  tool_path { name: "strip" path: "{{ binutils_location }}/bin/strip" }
 
   # Anticipated future default.
   unfiltered_cxx_flag: "-no-canonical-prefixes"

component/bazel/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
+  ../defaults.cfg
   ../unzip/buildout.cfg
   ../zip/buildout.cfg
 parts =
@@ -22,19 +22,9 @@ mode = 640
 filename = bazel_tools_cpp_CROSSTOOL
 template = ${:_profile_base_location_}/${:filename}.in
 rendered = ${:location}/${:filename}
-cpp_path = ${gcc:location}/bin/cpp
-gcc_path = ${gcc:location}/bin/gcc
-binutils_path = ${binutils:location}/bin
-gconv_path = ${gcc:location}/bin/gconv
-include_path = ${gcc:location}/include
-gcc_lib64_path = ${gcc:location}/lib64
 context =
-    key cpp_path template-bazel-crosstool:cpp_path
-    key gcc_path template-bazel-crosstool:gcc_path
-    key binutils_path template-bazel-crosstool:binutils_path
-    key gconv_path template-bazel-crosstool:gconv_path
-    key include_path template-bazel-crosstool:include_path
-    key gcc_lib64_path template-bazel-crosstool:gcc_lib64_path
+    key gcc_location gcc:prefix
+    key binutils_location binutils:location
 
 [template-bazel-src-main-cpp-build]
 recipe = slapos.recipe.template:jinja2
@@ -43,9 +33,11 @@ mode = 640
 filename = bazel_src_main_cpp_BUILD
 template = ${:_profile_base_location_}/${:filename}.in
 rendered = ${:location}/${:filename}
-linkopts = -Wl,-rpath,${gcc:location}/lib64
+# We previously passed an argument that we don't want anymore. Rather than
+# changing templates, we pass a dummy argument that will have no effect.
+linkopts = -DSLAPOS_DUMMY=
 context =
-    key linkopts template-bazel-src-main-cpp-build:linkopts
+    key linkopts :linkopts
 
 [template-bazel-src-main-tools-build]
 <= template-bazel-src-main-cpp-build
@@ -67,9 +59,6 @@ bazel-src-main-tools-build-path = ${template-bazel-src-main-tools-build:rendered
 bazel-src-tools-singlejar-build-path = ${template-bazel-src-tools-singlejar-build:rendered}
 unzip-bin = ${unzip:location}/bin
 zip-bin = ${zip:location}/bin
-gcc-bin = ${gcc:location}/bin
-gcc-lib = ${gcc:location}/lib
-gcc-lib64 = ${gcc:location}/lib64
 java_home = ${zulu:location}
 bazelrc = ${:_profile_base_location_}/bazelrc
 install =
@@ -98,19 +87,10 @@ install =
   path = ':'.join((
     options['unzip-bin'],
     options['zip-bin'],
-    options['gcc-bin'],
     os.environ['PATH']
     ))
   env = {'JAVA_HOME':options['java_home'],
          'PATH':path,
-         'LD_LIBRARY_PATH':':'.join((
-           options['gcc-lib'],
-           options['gcc-lib64'],
-           os.environ.get('LD_LIBRARY_PATH', '')
-           )),
-         'LDFLAGS':'-Wl,-rpath='+options['gcc-lib64'],
-         'CC':options['gcc-bin']+'/gcc',
-         'CXX':options['gcc-bin']+'/g++',
          'BAZELRC':options['bazelrc'],
          'VERBOSE':'yes',
         }

component/boost-lib/buildout.cfg

@@ -3,7 +3,6 @@ parts =
   boost-lib
 extends =
   ../bzip2/buildout.cfg
-  ../gcc/buildout.cfg
   ../zlib/buildout.cfg
   ../xz-utils/buildout.cfg
 
@@ -13,13 +12,12 @@ shared = true
 url = http://downloads.sourceforge.net/sourceforge/boost/boost_1_67_0.tar.bz2
 md5sum = ced776cb19428ab8488774e1415535ab
 location = @@LOCATION@@
-configure-command = ./bootstrap.sh --prefix=${:location} --with-python=${python2.7:location}/bin/python2.7 --without-icu
+configure-command = ./bootstrap.sh --prefix=${:location} --without-icu
 make-binary =
 make-options =
 make-targets = for a in $MAKEFLAGS; do case $a in -j*) j=$a; break;; esac; done;
-  ./b2 $j link=shared dll-path=${:location}/lib:${bzip2:location}/lib:${gcc:location}/lib:${gcc:location}/lib64:${zlib:location}/lib:${xz-utils:location}/lib install
+  ./b2 $j link=shared dll-path=${:location}/lib:${bzip2:location}/lib:${xz-utils:location}/lib:${zlib:location}/lib install
 environment =
-  PATH=${gcc:location}/bin:%(PATH)s
   BZIP2_INCLUDE=${bzip2:location}/include
   BZIP2_LIBPATH=${bzip2:location}/lib
   ZLIB_INCLUDE=${zlib:location}/include

component/caddy/buildout.cfg

@@ -8,8 +8,6 @@ parts =
 [gowork]
 # Caddy 1.x+ uses go modules, for which gowork does not work yet
 golang  = ${golang1.12:location}
-gcc-bin-directory  = ${golang1.12:gcc-bin-directory}
-
 install =
 
 [gowork.goinstall]

component/defaults.cfg

+[buildout]
+extends =
+  python-2.7/buildout.cfg
+  python3/buildout.cfg
+python = python
+
+# Unless a software release needs several versions of either Python or GCC
+# at the same time, the [pythonX.Y] & [gcc-X.Y] must not be referred directly,
+# even if a component works only with specific versions.
+# There may be exceptions in profiles that were written before this one.
+
+[python]
+recipe = slapos.recipe.build
+part = python2.7
+init =
+  python = self.buildout[options['part']]
+  for x in 'location', 'executable', 'version':
+    options[x] = python[x]
+update =
+  import os
+  path, os.environ['PYTHON'] = os.path.split(options['executable'])
+  PATH = os.environ['PATH']
+  if path not in PATH.split(os.pathsep):
+    os.environ['PATH'] = path + os.pathsep + PATH
+depends = ${gcc:recipe}
+
+[gcc]
+recipe = slapos.recipe.build
+# Latest version provided by SlapOS.
+part = gcc-8.2
+# Minimum version for all components that might be required for
+# slapos.rebootstrap (see https://bugs.python.org/issue34112 about Python 3.7+).
+min_version = 5.4
+init =
+  import os, subprocess
+  parse_version = lambda ver: tuple(map(int, ver.strip().split('.')))
+  try:
+    current = subprocess.check_output(('gcc', '-dumpfullversion'),
+                                      stderr=subprocess.STDOUT,
+                                      universal_newlines=True).strip()
+  except subprocess.CalledProcessError: # BBB: old GCC
+    current = subprocess.check_output(('gcc', '-dumpversion'),
+                                      universal_newlines=True).strip()
+  self.system_version = current
+  # If we're still going to use the same GCC,
+  # the conditions have no impact on the dependant parts.
+  min_version = options.pop('min_version', None)
+  max_version = options.pop('max_version', None)
+  ###
+  if (parse_version(min_version or current)
+      <= parse_version(current)
+      <= parse_version(max_version or current)):
+    del options['part']
+    for path in os.getenv('PATH', '').split(os.pathsep): # PY3: shutil.which
+      gcc = os.path.join(path, 'gcc')
+      if os.access(gcc, os.X_OK) and not os.path.isdir(gcc):
+        options['prefix'] = os.path.dirname(path)
+        break
+  else:
+    options['prefix'] = self.buildout[options['part']]['location']
+  options.barrier()
+update =
+  if 'part' in options:
+    import os
+    env = os.environ
+    env['PATH'] = os.pathsep.join((
+      os.path.join(options['prefix'], 'bin'),
+      env['PATH']
+    ))
+  else:
+    print("Using system GCC (%s)" % self.system_version)

component/firewalld/buildout.cfg

@@ -3,28 +3,19 @@ parts =
   firewalld-patch
 
 extends =
-  ../pkgconfig/buildout.cfg
-  ../autoconf/buildout.cfg
-  ../automake/buildout.cfg
+  ../defaults.cfg
   ../libtool/buildout.cfg
   ../intltool/buildout.cfg
-  ../gettext/buildout.cfg
   ../glib/buildout.cfg
-  ../m4/buildout.cfg
   ../python-slip/buildout.cfg
   ../dbus/buildout.cfg
-  ../python-2.7/buildout.cfg
-  ../libffi/buildout.cfg
   ../flex/buildout.cfg
-  ../bison/buildout.cfg
-  ../xz-utils/buildout.cfg
-  ../perl/buildout.cfg
 
 [firewalld]
 recipe = slapos.recipe.cmmi
 url = https://github.com/t-woerner/firewalld/archive/v0.3.14.2.tar.gz
 md5sum = b8f81b536ede502721f69300d374447b
-python-egg = ${buildout:parts-directory}/${:_buildout_section_name_}/lib/python2.7/site-packages
+python-egg = ${buildout:parts-directory}/${:_buildout_section_name_}/lib/python${python:version}/site-packages
 pre-configure =
   sed -i -E 's,(^SUBDIRS *=.*) doc(\b.*),\1\2,' Makefile.am
   aclocal -I${pkgconfig:location}/share/aclocal -I${gettext:location}/share/aclocal -I${libtool:location}/share/aclocal
@@ -35,7 +26,6 @@ environment =
   PATH=${autoconf:location}/bin:${automake:location}/bin:${pkgconfig:location}/bin:${libtool:location}/bin:${intltool:location}/bin:${gettext:location}/bin:${glib:location}/bin:${perl:location}/bin:%(PATH)s
   CPPFLAGS=-I${gettext:location}/include
   LDFLAGS=-L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib
-  PYTHON=${python2.7:location}/bin/python2.7
   M4=${m4:location}/bin/m4
   ACLOCAL_PATH=${pkgconfig:location}/share/aclocal:${gettext:location}/share/aclocal:${libtool:location}/share/aclocal:${glib:location}/share/aclocal:${intltool:location}/share/aclocal
   FIREWALLD_DEVEL_ENV=${buildout:parts-directory}/${:_buildout_section_name_}/src
@@ -46,19 +36,16 @@ recipe = slapos.recipe.cmmi
 version = 1.2.4
 url = http://dbus.freedesktop.org/releases/dbus-python/dbus-python-${:version}.tar.gz
 md5sum = 7372a588c83a7232b4e08159bfd48fe5 
-python-egg = ${buildout:parts-directory}/${:_buildout_section_name_}/lib/python2.7/site-packages
+python-egg = ${buildout:parts-directory}/${:_buildout_section_name_}/lib/python${python:version}/site-packages
 environment =
   PKG_CONFIG_PATH=${dbus:location}/lib/pkgconfig:${dbus-glib:location}/lib/pkgconfig:${glib:location}/lib/pkgconfig:${pcre:location}/lib/pkgconfig
-  PATH=${pkgconfig:location}/bin:${python2.7:location}/bin:%(PATH)s
+  PATH=${pkgconfig:location}/bin:%(PATH)s
   DBUS_CFLAGS=-I${dbus:location}/include/dbus-1.0 -I${dbus:location}/lib/dbus-1.0/include
   DBUS_LIBS=-L${dbus:location}/lib -ldbus-1
   DBUS_GLIB_CFLAGS=-I${dbus-glib:location}/include/dbus-1.0
   DBUS_GLIB_LIBS=-L${dbus-glib:location}/lib -ldbus-glib-1
   CPPFLAGS=-I${glib:location}/include/glib-2.0 -I${glib:location}/lib/glib-2.0/include
   LDFLAGS=-L${glib:location}/lib -Wl,-rpath=${glib:location}/lib
-  PYTHON=${python2.7:location}/bin/python2.7
-  PYTHON_INCLUDES=-I${python2.7:location}/include/python2.7
-  PYTHON_LIBS=-L${python2.7:location}/lib -lpython2.7 -lpthread -ldl -lutil -lm
 
 [gobject-introspection]
 recipe = slapos.recipe.cmmi
@@ -72,7 +59,6 @@ environment =
   PKG_CONFIG_PATH=${glib:location}/lib/pkgconfig:${pcre:location}/lib/pkgconfig
   CPPFLAGS=-I${glib:location}/include/glib-2.0 -I${glib:location}/lib/glib-2.0/include
   LDFLAGS=-L${glib:location}/lib -Wl,-rpath=${glib:location}/lib -L${libffi:location}/lib -Wl,-rpath=${libffi:location}/lib -lffi
-  PYTHON=${python2.7:location}/bin/python2.7
   GLIB_CFLAGS=-I${glib:location}/include/glib-2.0 -I${glib:location}/lib/glib-2.0/include
   GLIB_LIBS=-L${glib:location}/lib -lglib-2.0 -lintl -lgobject-2.0
   FFI_CFLAGS=-I${libffi:location}/include
@@ -82,19 +68,17 @@ environment =
 [pygobject3]
 recipe = slapos.recipe.cmmi
 url = http://ftp.gnome.org/pub/gnome/core/3.22/3.22.2/sources/pygobject-3.22.0.tar.xz
-python-egg = ${buildout:parts-directory}/${:_buildout_section_name_}/lib/python2.7/site-packages
- md5sum = ed4117ed5d554d25fd7718807fbf819f
+python-egg = ${buildout:parts-directory}/${:_buildout_section_name_}/lib/python${python:version}/site-packages
+md5sum = ed4117ed5d554d25fd7718807fbf819f
 pre-configure =
   sed -i 's#/usr/local#${gobject-introspection:location}#g' ${gobject-introspection:location}/lib/pkgconfig/gobject-introspection-1.0.pc
 configure-options =
   --disable-static
   --disable-cairo
-  --with-python=${python2.7:location}/bin/python2.7
 
 environment =
   PATH=${pkgconfig:location}/bin:${libtool:location}/bin:${glib:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${glib:location}/lib/pkgconfig:${gobject-introspection:location}/lib/pkgconfig:${pcre:location}/lib/pkgconfig
-  PYTHON=${python2.7:location}/bin/python2.7
   FFI_CFLAGS=-I${libffi:location}/include
   FFI_LIBS=-L${libffi:location}/lib -Wl,-rpath=${libffi:location}/lib -lffi
   CPPFLAGS=-I${glib:location}/include/glib-2.0 -I${glib:location}/lib/glib-2.0/include -I${gettext:location}/include -I${libffi:location}/include
@@ -115,13 +99,13 @@ md5sum = 893752ba2e93a1e96334dfee19f884ad
 
 [firewalld-patch]
 recipe = plone.recipe.command
-python = ${buildout:directory}/bin/${firewalld-eggs:interpreter}
+python = ${buildout:bin-directory}/${firewalld-eggs:interpreter}
 command =
   sed -i 's#/usr/bin/python -Es#${:python}#' ${firewalld:location}/bin/firewall-cmd
   sed -i 's#/usr/bin/python -Es#${:python}#' ${firewalld:location}/sbin/firewalld
   sed -i 's#DefaultZone=public#DefaultZone=trusted#' ${firewalld:location}/etc/firewalld/firewalld.conf
-  sed -i 's#/usr/lib/firewalld#${firewalld:location}/lib/firewalld#' ${firewalld:location}/lib/python2.7/site-packages/firewall/config/__init__.py
-  sed -i 's#/usr/share/#${firewalld:location}/share#' ${firewalld:location}/lib/python2.7/site-packages/firewall/config/__init__.py
+  sed -i 's#/usr/lib/firewalld#${firewalld:location}/lib/firewalld#' ${firewalld:python-egg}/firewall/config/__init__.py
+  sed -i 's#/usr/share/#${firewalld:location}/share#' ${firewalld:python-egg}/firewall/config/__init__.py
   sed -i "s#import sys#import sys, os\n\nos.environ['GI_TYPELIB_PATH'] = '${gobject-introspection:location}/lib/girepository-1.0/'#" ${:python}
   sed -i 's#<syslog/>#<!-- no syslog -->#' ${dbus:location}/etc/dbus-1/system.conf
   sed -i 's#<user>messagebus</user>#<user>slapsoft</user>#' ${dbus:location}/share/dbus-1/system.conf

component/gcc/buildout.cfg

@@ -11,12 +11,16 @@ extends =
   ../zlib/buildout.cfg
 
 parts =
-  gcc
+  gcc-8.2
 
 [gcc-common]
 recipe = slapos.recipe.cmmi
 shared = true
 url = http://ftp.gnu.org/gnu/gcc/gcc-${:version}/gcc-${:version}.tar.xz
+pre-configure =
+  set %(location)s/bin
+  mkdir -p $1
+  ln -s ${binutils:location}/bin/ld $1/ld
 configure-options =
   --disable-bootstrap
   --disable-multilib
@@ -25,17 +29,33 @@ configure-options =
   --with-mpc=${mpc:location}
   --enable-languages="c,c++,fortran"
   --with-isl=${isl:location}
-  --with-ld=${binutils:location}/bin/ld
+  --with-ld=@@LOCATION@@/bin/ld
   --with-as=${binutils:location}/bin/as
 post-install =
-  cd '@@LOCATION@@/bin'
+  cd '%(location)s/bin'
   ln -s gcc cc
+  rm ld
+  for x in `for x in %(location)s/lib*/*.so; do echo $${x%%/*}; done |sort -u`
+  do set $1:$x "$2 -rpath=$x"
+  done
+  cat <<EOF >ld
+  #!/bin/sh -e
+  case \$#:\$1 in 0:|1:-*) ;; *)
+    if [ "\$LD_RUN_PATH" ]
+    then LD_RUN_PATH=\$LD_RUN_PATH$1
+    else set -- "\$@" $2
+    fi
+    ;;
+  esac
+  exec ${binutils:location}/bin/ld "\$@"
+  EOF
+  chmod +x ld
 environment =
   CPPFLAGS=-I${zlib:location}/include
   LDFLAGS=-Wl,-rpath=${gmp:location}/lib -Wl,-rpath=${isl:location}/lib -Wl,-rpath=${mpc:location}/lib -Wl,-rpath=${mpfr:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
   PATH=${binutils:location}/bin:${gettext:location}/bin:${perl:location}/bin:${tar:location}/bin:%(PATH)s
 
-[gcc]
+[gcc-5.5]
 <= gcc-common
 version = 5.5.0
 md5sum = 0f70424213b4a1113c04ba66ddda0c1f
@@ -52,7 +72,7 @@ version = 8.2.0
 md5sum = 4ab282f414676496483b3e1793d07862
 
 [gcc-minimal]
-<= gcc
+<= gcc-5.5
 configure-options =
   --disable-bootstrap
   --disable-multilib

component/glib/buildout.cfg

@@ -6,18 +6,9 @@ extends =
   ../perl/buildout.cfg
   ../xz-utils/buildout.cfg
   ../zlib/buildout.cfg
-  ../python-2.7/buildout.cfg
 parts =
   glib
 
-# --with-python=${buildout:executable} is simpler but we may end up with
-# scripts whose shebang exceeds the kernel limit.
-# And ${buildout:executable}/.. is not a valid $PATH part.
-[glib-python]
-recipe = collective.recipe.shelloutput
-commands =
-  bin-directory = dirname ${buildout:executable}
-
 [glib]
 recipe = slapos.recipe.cmmi
 patches =
@@ -27,7 +18,6 @@ shared = true
 url = https://ftp.gnome.org/pub/gnome/sources/glib/2.56/glib-2.56.4.tar.xz
 md5sum = 17c3dca43d99a4882384f1a7b530b80b
 configure-options =
-  --with-python=python
   --disable-libmount
   --disable-static
   --disable-selinux
@@ -35,7 +25,7 @@ configure-options =
   --disable-xattr
   --disable-man
 environment =
-  PATH=${glib-python:bin-directory}:${gettext:location}/bin:${perl:location}/bin:${xz-utils:location}/bin:%(PATH)s
+  PATH=${gettext:location}/bin:${perl:location}/bin:${xz-utils:location}/bin:%(PATH)s
   CPPFLAGS=-I${gettext:location}/include -I${zlib:location}/include
   LDFLAGS=-L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
   LIBFFI_CFLAGS=-I${libffi:location}/include

component/glibmm/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../gettext/buildout.cfg
   ../glib/buildout.cfg
   ../libsigc/buildout.cfg
@@ -19,8 +18,7 @@ pkg_config_depends = ${glib:location}/lib/pkgconfig:${libsigc:location}/lib/pkgc
 configure-options =
   --disable-documentation
 environment =
-  PATH=${gcc:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:${glib:location}/bin:%(PATH)s
+  PATH=${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:${glib:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
   CPPFLAGS=-I${gettext:location}/include
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib
+  LDFLAGS=-L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib

component/golang/buildout.cfg

@@ -17,12 +17,9 @@ configure-command = :
 location = @@LOCATION@@
 make-binary =
 make-targets= cd src && ./all.bash && cp -alf .. ${:location}
-# gcc version to use
-gcc-bin-directory = ${gcc-8.2:location}/bin
 # some testdata files have an issue with slapos.extension.strip.
 post-install = ${findutils:location}/bin/find ${:location}/src -type d -name testdata -exec rm -rf {} \; || true
 environment =
-  PATH=${:gcc-bin-directory}:%(PATH)s
   GOROOT_FINAL=${:location}
   ${:environment-extra}
 
@@ -106,9 +103,6 @@ depends = ${gowork.goinstall:recipe}
 # go version used for the workspace (possible to override in applications)
 golang  = ${golang1.10:location}
 
-# gcc version must be compatible with go version selected
-gcc-bin-directory = ${golang1.10:gcc-bin-directory}
-
 # no special build flags by default
 buildflags =
 
@@ -120,7 +114,6 @@ recipe  = plone.recipe.command
 command = :
 
 # env.sh for compiling and running go programs
-[gowork]
 env.sh  = ${gowork-env.sh:output}
 
 [gowork-env.sh]
@@ -128,7 +121,7 @@ recipe	= slapos.recipe.template
 url     = ${:_profile_base_location_}/goenv.sh.in
 output	= ${gowork:directory}/env.sh
 depends = ${gowork.mkdir:recipe}
-md5sum	= 7eaad1f9aabd3cfad554975098c5d4c3
+md5sum	= 6bcf96cf18ea68ce6e378ed8d49346a3
 
 [gowork.mkdir]
 # NOTE do not use slapos.cookbook:mkdirectory here - if anything in software (not instance)

component/golang/goenv.sh.in

@@ -3,7 +3,7 @@
 
 # ---- 8< ---- (buildout substitution here)
 # PATH so that go & friends work out of the box
-export PATH=${gowork:golang}/bin:${git:location}/bin:${pkgconfig:location}/bin:${buildout:bin-directory}:${gowork:gcc-bin-directory}:$PATH
+export PATH=${gowork:golang}/bin:${git:location}/bin:${pkgconfig:location}/bin:${buildout:bin-directory}:${gcc:prefix}/bin:$PATH
 X=${gowork:directory}
 
 export PKG_CONFIG_PATH=$(echo -n "${gowork:cpkgpath}" |tr '\n' ':'):$PKG_CONFIG_PATH

component/gtk-2/buildout.cfg

@@ -107,7 +107,6 @@ shared = true
 url = https://download.gnome.org/sources/atk/2.28/atk-2.28.1.tar.xz
 md5sum = dfb5e7474220afa3f4ca7e45af9f3a11
 configure-options =
-  --with-python=${python2.7:location}/bin/python2.7
   --disable-gtk-doc-html
 environment =
   PATH=${gettext:location}/bin:${glib:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s

component/gtkmm/buildout.cfg

@@ -2,7 +2,6 @@
 extends =
   ../bzip2/buildout.cfg
   ../freetype/buildout.cfg
-  ../gcc/buildout.cfg
   ../gettext/buildout.cfg
   ../glibmm/buildout.cfg
   ../gtk-2/buildout.cfg
@@ -23,11 +22,10 @@ configure-options =
   --disable-static
   --disable-documentation
 environment =
-  PATH=${freetype:location}/bin:${gcc:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
+  PATH=${freetype:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
   CPPFLAGS=-I${libX11:location}/include -I${libXrender:location}/include -I${renderext:location}/include -I${xproto:location}/include
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib -L${libXrender:location}/lib -Wl,-rpath=${libXrender:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  LDFLAGS=-L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib -L${libXrender:location}/lib -Wl,-rpath=${libXrender:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
 
 [pangomm]
 recipe = slapos.recipe.cmmi
@@ -38,10 +36,9 @@ configure-options =
   --disable-static
   --disable-documentation
 environment =
-  PATH=${gcc:location}/bin:${glib:location}/bin:${freetype:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
+  PATH=${glib:location}/bin:${freetype:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${harfbuzz:location}/lib -Wl,-rpath=${harfbuzz:location}/lib
+  LDFLAGS=-L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${harfbuzz:location}/lib -Wl,-rpath=${harfbuzz:location}/lib
 
 [atkmm]
 recipe = slapos.recipe.cmmi
@@ -52,10 +49,9 @@ configure-options =
   --disable-static
   --disable-documentation
 environment =
-  PATH=${gcc:location}/bin:${glib:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
+  PATH=${glib:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib
+  LDFLAGS=-L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib
 
 [gtkmm]
 recipe = slapos.recipe.cmmi
@@ -66,7 +62,6 @@ configure-options =
   --disable-static
   --disable-documentation
 environment =
-  PATH=${gcc:location}/bin:${gdk-pixbuf:location}/bin:${glib:location}/bin:${gtk-2:location}/bin:${pango:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
+  PATH=${gdk-pixbuf:location}/bin:${glib:location}/bin:${gtk-2:location}/bin:${pango:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${harfbuzz:location}/lib -Wl,-rpath=${harfbuzz:location}/lib
+  LDFLAGS=-L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${harfbuzz:location}/lib -Wl,-rpath=${harfbuzz:location}/lib

component/helloweb/buildout.cfg

@@ -26,7 +26,6 @@ install =
     lab.nexedi.com/nexedi/helloweb/go/...
 
 golang  = ${golang1.12:location}
-gcc-bin-directory  = ${golang1.12:gcc-bin-directory}
 
 # -*- go -*-
 [helloweb-go]

component/icu/buildout.cfg

 [buildout]
-extends =
-  ../gcc/buildout.cfg
 parts = icu4c
 
 [icu4c]
@@ -17,14 +15,6 @@ configure-options =
 patches =
   ${:_profile_base_location_}/fix-glibc2.26-ftbfs.patch#f1622be16964029fc66a70b8f9e1693c
 
-[icu4c-slaposgcc]
-# need for onlyoffice-core
-<= icu4c
-environment =
-  PATH=${gcc:location}/bin:%(PATH)s
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64
-
 [icu]
 <= icu4c
 

component/inkscape/buildout.cfg

@@ -6,7 +6,6 @@ extends =
   ../cmake/buildout.cfg
   ../freetype/buildout.cfg
   ../garbage-collector/buildout.cfg
-  ../gcc/buildout.cfg
   ../gettext/buildout.cfg
   ../glibmm/buildout.cfg
   ../gtk-2/buildout.cfg
@@ -32,10 +31,9 @@ md5sum = bda73a3dd5ff2f30b5956764399db6e7
 configure-options =
   --disable-static
 environment =
-  PATH=${gcc:location}/bin:${glib:location}/bin:${pkgconfig:location}/bin:%(PATH)s
+  PATH=${glib:location}/bin:${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${atk:location}/lib/pkgconfig:${glib:location}/lib/pkgconfig:${glibmm:location}/lib/pkgconfig:${libsigc:location}/lib/pkgconfig:${pcre:location}/lib/pkgconfig
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib
+  LDFLAGS=-L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib
 
 [inkscape]
 recipe = slapos.recipe.cmmi
@@ -53,8 +51,8 @@ configure-options =
   -DWITH_LIBVISIO=OFF
   -DWITH_LIBWPG=OFF
 environment =
-  PATH=${cmake:location}/bin:${freetype:location}/bin:${gcc:location}/bin:${gdk-pixbuf:location}/bin:${gettext:location}/bin:${glib:location}/bin:${intltool:location}/bin:${libxml2:location}/bin:${pango:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:%(PATH)s
+  PATH=${cmake:location}/bin:${freetype:location}/bin:${gdk-pixbuf:location}/bin:${gettext:location}/bin:${glib:location}/bin:${intltool:location}/bin:${libxml2:location}/bin:${pango:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
   CMAKE_INCLUDE_PATH=${boost-lib:location}/include:${freetype:location}/include:${garbage-collector:location}/include:${libjpeg:location}/include:${lcms2:location}/include:${libpng:location}/include:${zlib:location}/include
-  CMAKE_LIBRARY_PATH=${boost-lib:location}/lib:${freetype:location}/lib:${garbage-collector:location}/lib:${gcc:location}/lib:${gcc:location}/lib64:${lcms2:location}/lib:${libjpeg:location}/lib:${libpng:location}/lib:${zlib:location}/lib
-  LDFLAGS=-L${atk:location}/lib -Wl,-rpath=${atk:location}/lib -L${atkmm:location}/lib -Wl,-rpath=${atkmm:location}/lib -L${boost-lib:location}/lib -Wl,-rpath=${boost-lib:location}/lib -L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${cairo:location}/lib -Wl,-rpath=${cairo:location}/lib -L${cairomm:location}/lib -Wl,-rpath=${cairomm:location}/lib -L${fontconfig:location}/lib -Wl,-rpath=${fontconfig:location}/lib -L${freetype:location}/lib -Wl,-rpath=${freetype:location}/lib -L${garbage-collector:location}/lib -Wl,-rpath=${garbage-collector:location}/lib -Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${gdk-pixbuf:location}/lib -Wl,-rpath=${gdk-pixbuf:location}/lib -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${glib:location}/lib -Wl,-rpath=${glib:location}/lib -L${glibmm:location}/lib -Wl,-rpath=${glibmm:location}/lib -L${gsl:location}/lib -Wl,-rpath=${gsl:location}/lib -L${gtk-2:location}/lib -Wl,-rpath=${gtk-2:location}/lib -L${gtkmm:location}/lib -Wl,-rpath=${gtkmm:location}/lib -L${lcms2:location}/lib -Wl,-rpath=${lcms2:location}/lib -L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${libpng:location}/lib -Wl,-rpath=${libpng:location}/lib -L${libsigc:location}/lib -Wl,-rpath=${libsigc:location}/lib -L${libxml2:location}/lib -Wl,-rpath=${libxml2:location}/lib -L${libxslt:location}/lib -Wl,-rpath=${libxslt:location}/lib -L${pango:location}/lib -Wl,-rpath=${pango:location}/lib -L${pangomm:location}/lib -Wl,-rpath=${pangomm:location}/lib -L${popt:location}/lib -Wl,-rpath=${popt:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  CMAKE_LIBRARY_PATH=${boost-lib:location}/lib:${freetype:location}/lib:${garbage-collector:location}/lib:${lcms2:location}/lib:${libjpeg:location}/lib:${libpng:location}/lib:${zlib:location}/lib
+  LDFLAGS=-L${atk:location}/lib -Wl,-rpath=${atk:location}/lib -L${atkmm:location}/lib -Wl,-rpath=${atkmm:location}/lib -L${boost-lib:location}/lib -Wl,-rpath=${boost-lib:location}/lib -L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${cairo:location}/lib -Wl,-rpath=${cairo:location}/lib -L${cairomm:location}/lib -Wl,-rpath=${cairomm:location}/lib -L${fontconfig:location}/lib -Wl,-rpath=${fontconfig:location}/lib -L${freetype:location}/lib -Wl,-rpath=${freetype:location}/lib -L${garbage-collector:location}/lib -Wl,-rpath=${garbage-collector:location}/lib -L${gdk-pixbuf:location}/lib -Wl,-rpath=${gdk-pixbuf:location}/lib -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -L${glib:location}/lib -Wl,-rpath=${glib:location}/lib -L${glibmm:location}/lib -Wl,-rpath=${glibmm:location}/lib -L${gsl:location}/lib -Wl,-rpath=${gsl:location}/lib -L${gtk-2:location}/lib -Wl,-rpath=${gtk-2:location}/lib -L${gtkmm:location}/lib -Wl,-rpath=${gtkmm:location}/lib -L${lcms2:location}/lib -Wl,-rpath=${lcms2:location}/lib -L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${libpng:location}/lib -Wl,-rpath=${libpng:location}/lib -L${libsigc:location}/lib -Wl,-rpath=${libsigc:location}/lib -L${libxml2:location}/lib -Wl,-rpath=${libxml2:location}/lib -L${libxslt:location}/lib -Wl,-rpath=${libxslt:location}/lib -L${pango:location}/lib -Wl,-rpath=${pango:location}/lib -L${pangomm:location}/lib -Wl,-rpath=${pangomm:location}/lib -L${popt:location}/lib -Wl,-rpath=${popt:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib

component/jsl/buildout.cfg

@@ -8,6 +8,10 @@ parts = jsl
 recipe = slapos.recipe.build
 url = http://www.javascriptlint.com/download/jsl-0.3.0-src.tar.gz
 md5sum = 2b94ffa4fab07acabe0c5e73cd49bcdf
+init =
+  import os
+# Bypass slapos gcc if any because slapos ld can't find -lm (why?).
+  self.path = os.environ['PATH']
 install =
   import os
   import sys
@@ -15,5 +19,5 @@ install =
   md5sum = options['md5sum']
   extract_dir = self.extract(self.download(url, md5sum))
   workdir = guessworkdir(extract_dir)
-  os.chdir(os.path.join(workdir, 'src'))
-  os.system("make -f Makefile.ref -j 1 DIST='%s' all export" % location)
+  call(('make', '-f', 'Makefile.ref', '-j1', 'DIST=' + location, 'all', 'export'),
+    cwd=os.path.join(workdir, 'src'), env=dict(os.environ, PATH=self.path))

component/jupyter/buildout.cfg

@@ -4,7 +4,6 @@ extends =
   ../matplotlib/buildout.cfg
   ../ipython/buildout.cfg
   ../python-pyzmq/buildout.cfg
-  ../python-2.7/buildout.cfg
   ../scipy/buildout.cfg
   ../scikit-learn/buildout.cfg
   ../pandas/buildout.cfg

component/keras/buildout.cfg

@@ -14,7 +14,7 @@ initialization =
 eggs = 
   ${scipy:egg}
   ${numpy:egg}
-  ${tensorflow-build-install-egg:egg}
+  ${tensorflow:egg}
   ${protobuf-python:egg}
   ${python-PyYAML:egg}
   six
@@ -25,6 +25,10 @@ interpreter = keras-python
 scripts = keras-python
 
 [versions]
+backports.weakref = 1.0.post1
+futures = 3.2.0
 Keras = 2.1.0
-tensorflow = 1.4.0
+markdown = 3.1.1
+protobuf = 3.11.3
 h5py = 2.7.0rc2
+wheel = 0.33.6

component/kumo/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../tokyocabinet/buildout.cfg
   ../messagepack/buildout.cfg
   ../openssl/buildout.cfg
@@ -25,7 +24,5 @@ configure-options =
 
 environment =
   CPPFLAGS=-I${zlib:location}/include -I${openssl:location}/include
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${zlib:location}/lib -L${openssl:location}/lib -Wl,-rpath=${tokyocabinet:location}/lib -Wl,-rpath=${messagepack:location}/lib -Wl,-rpath=${zlib:location}/lib -Wl,-rpath=${openssl:location}/lib
-  PATH=${gcc:location}/bin:${patch:location}/bin:%(PATH)s
-# KumoFS is known not to build with gcc>6, so we use our own gcc which is 5.5
\ No newline at end of file
+  LDFLAGS=-L${zlib:location}/lib -L${openssl:location}/lib -Wl,-rpath=${tokyocabinet:location}/lib -Wl,-rpath=${messagepack:location}/lib -Wl,-rpath=${zlib:location}/lib -Wl,-rpath=${openssl:location}/lib
+  PATH=${patch:location}/bin:%(PATH)s

component/libatlas/buildout.cfg

@@ -39,5 +39,4 @@ configure-options =
 make-options =
   -C build
 environment =
-  PATH=${gcc:location}/bin:${patch:location}/bin:%(PATH)s
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
+  PATH=${patch:location}/bin:%(PATH)s

component/libsigc/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../m4/buildout.cfg
   ../perl/buildout.cfg
   ../xz-utils/buildout.cfg
@@ -16,6 +15,4 @@ md5sum = 70bcbde2c900e4925d6ef4bf50954195
 configure-options =
   --disable-documentation
 environment =
-  PATH=${gcc:location}/bin:${m4:location}/bin:${perl:location}/bin:${xz-utils:location}/bin:%(PATH)s
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64
+  PATH=${m4:location}/bin:${perl:location}/bin:${xz-utils:location}/bin:%(PATH)s

component/mariadb/buildout.cfg

@@ -21,7 +21,6 @@ extends =
   ../xz-utils/buildout.cfg
   ../zlib/buildout.cfg
   ../unixodbc/buildout.cfg
-  ../gcc/buildout.cfg
   ../zstd/buildout.cfg
 
 parts =
@@ -69,13 +68,13 @@ configure-options =
   -DCMAKE_INCLUDE_PATH=${unixodbc:location}/include
   -DCMAKE_LIBRARY_PATH=${unixodbc:location}/lib
 CMAKE_CFLAGS = -I${bzip2:location}/include -I${jemalloc:location}/include -I${libaio:location}/include -I${libxml2:location}/include -I${ncurses:location}/include -I${openssl:location}/include -I${pcre:location}/include -I${readline5:location}/include -I${xz-utils:location}/include -I${zlib:location}/include -I${unixodbc:location}/include -I${lz4:location}/include -I${snappy:location}/include -I${zstd:location}/include
-CMAKE_LIBRARY_PATH = ${bzip2:location}/lib:${jemalloc:location}/lib:${libaio:location}/lib:${libxml2:location}/lib:${ncurses:location}/lib:${openssl:location}/lib:${pcre:location}/lib:${readline5:location}/lib:${xz-utils:location}/lib:${zlib:location}/lib:${unixodbc:location}/lib:${lz4:location}/lib:${snappy:location}/lib:${zstd:location}/lib:${gcc:location}/lib:${gcc:location}/lib64
+CMAKE_LIBRARY_PATH = ${bzip2:location}/lib:${jemalloc:location}/lib:${libaio:location}/lib:${libxml2:location}/lib:${ncurses:location}/lib:${openssl:location}/lib:${pcre:location}/lib:${readline5:location}/lib:${xz-utils:location}/lib:${zlib:location}/lib:${unixodbc:location}/lib:${lz4:location}/lib:${snappy:location}/lib:${zstd:location}/lib
 environment =
   CMAKE_PROGRAM_PATH=${cmake:location}/bin
   CMAKE_INCLUDE_PATH=${bzip2:location}/include:${libaio:location}/include:${libaio:location}/include:${libxml2:location}/include:${ncurses:location}/include:${openssl:location}/include:${pcre:location}/include:${readline5:location}/include:${xz-utils:location}/include:${zlib:location}/include:${unixodbc:location}/include:${lz4:location}/include:${snappy:location}/include:${zstd:location}/include
   CMAKE_LIBRARY_PATH=${:CMAKE_LIBRARY_PATH}
   LDFLAGS=-L${bzip2:location}/lib -L${jemalloc:location}/lib -L${libaio:location}/lib -L${pcre:location}/lib -L${xz-utils:location}/lib -L${zlib:location}/lib -L${unixodbc:location}/lib -L${lz4:location}/lib -L${snappy:location}/lib -L${zstd:location}/lib
-  PATH=${gcc:location}/bin:${patch:location}/bin:%(PATH)s
+  PATH=${patch:location}/bin:%(PATH)s
 patch-options = -p1
 patches =
   https://sources.debian.org/data/main/m/mariadb-10.3/1:10.3.22-0+deb10u1/debian/patches/0024-Revert-to-using-system-pcre-library.patch#1c6a0f2634f5a56122299674b77b1131

component/nghttp2/buildout.cfg

 [buildout]
-extends = 
+extends =
   ../automake/buildout.cfg
   ../libtool/buildout.cfg
   ../pkgconfig/buildout.cfg
-  ../python-2.7/buildout.cfg
 
 parts =
   nghttp2
@@ -18,4 +17,4 @@ pre-configure =
   automake
   autoconf
 environment =
-  PATH=${autoconf:location}/bin:${automake:location}/bin:${libtool:location}/bin:${m4:location}/bin:${python2.7:location}/bin:%(PATH)s
+  PATH=${autoconf:location}/bin:${automake:location}/bin:${libtool:location}/bin:${m4:location}/bin:%(PATH)s

component/nodejs/buildout.cfg

@@ -7,7 +7,6 @@ extends =
   ../openssl/buildout.cfg
   ../zlib/buildout.cfg
   ../python-2.7/buildout.cfg
-  ../gcc/buildout.cfg
 
 parts =
   nodejs
@@ -57,10 +56,10 @@ configure-options =
   --shared-openssl-libpath=${:openssl_location}/lib
 environment =
   HOME=@@LOCATION@@
-  PATH=${gcc:location}/bin:${pkgconfig:location}/bin:${python2.7:location}/bin/:%(PATH)s
+  PATH=${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:openssl_location}/lib/pkgconfig/
   CPPFLAGS=-I${zlib:location}/include
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -Wl,-rpath=${:openssl_location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  LDFLAGS=-Wl,-rpath=${:openssl_location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
   LD_LIBRARY_PATH=${:openssl_location}/lib
 
 [nodejs-8.6.0-output]

component/numpy/openblas.cfg

 [buildout]
-
 extends =
   buildout.cfg
-  ../gcc/buildout.cfg
   ../openblas/buildout.cfg
 
 [numpy-env]
-PATH = ${gcc:location}/bin:%(PATH)s
 OPENBLAS = ${openblas:location}/lib/libopenblas.so
 LAPACK = ${openblas:location}/lib/libopenblas.so
 ATLAS = ${openblas:location}/lib/libopenblas.so
@@ -14,6 +11,4 @@ ATLAS = ${openblas:location}/lib/libopenblas.so
 [numpy]
 environment = numpy-env
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib

component/onlyoffice-core/buildout.cfg

 [buildout]
 extends =
   ../binutils/buildout.cfg
-  ../gcc/buildout.cfg
   ../libxml2/buildout.cfg
   ../zlib/buildout.cfg
   ../icu/buildout.cfg
@@ -21,9 +20,9 @@ md5sum = 9cd1cd731202511e475971eee58ba7b6
 configure-command = true
 make-targets = lib bin
 environment =
-  PATH=${binutils:location}/bin:${gcc:location}/bin:${qt5-qmake:location}/bin:%(PATH)s
-  CXXFLAGS=-I${libxml2:location}/include -I${zlib:location}/include -I${icu4c-slaposgcc:location}/include -I${boost-lib:location}/include -Wno-comment -Wno-deprecated-declarations -Wno-endif-labels -Wno-parentheses -Wno-reorder -Wno-sign-compare -Wno-switch -Wno-unknown-pragmas -Wno-unused
-  LDFLAGS=-L${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib -L${gcc:location}/lib64 -Wl,-rpath=${gcc:location}/lib64 -L${libxml2:location}/lib -Wl,-rpath=${libxml2:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${icu4c-slaposgcc:location}/lib -Wl,-rpath=${icu4c-slaposgcc:location}/lib -L${boost-lib:location}/lib -Wl,-rpath=${boost-lib:location}/lib -Wl,-rpath=${:location}/lib
+  PATH=${binutils:location}/bin:${qt5-qmake:location}/bin:%(PATH)s
+  CXXFLAGS=-I${libxml2:location}/include -I${zlib:location}/include -I${icu4c:location}/include -I${boost-lib:location}/include -Wno-comment -Wno-deprecated-declarations -Wno-endif-labels -Wno-parentheses -Wno-reorder -Wno-sign-compare -Wno-switch -Wno-unknown-pragmas -Wno-unused
+  LDFLAGS=-L${libxml2:location}/lib -Wl,-rpath=${libxml2:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${icu4c:location}/lib -Wl,-rpath=${icu4c:location}/lib -L${boost-lib:location}/lib -Wl,-rpath=${boost-lib:location}/lib -Wl,-rpath=${:location}/lib
 post-install =
   set -x
   mkdir -p ${:location}/bin ${:location}/lib

component/openblas/buildout.cfg

@@ -6,9 +6,6 @@ extends =
 parts =
   openblas
 
-extends =
-  ../gcc/buildout.cfg
-
 [openblas]
 recipe = slapos.recipe.cmmi
 shared = true
@@ -29,6 +26,9 @@ build-common-options = BINARY="$(uname -m | grep -q x86_64 && echo 64 || echo 32
 #   TARGET=HASWELL
 build-ext-options =
 
+# Fortran is required for LAPACK, which is required for matplotlib.
+pre-configure = type gfortran
+
 # First try with auto-detected target and if it fails try TARGET=GENERIC.
 configure-command =
   make ${:build-common-options} ${:build-ext-options} || (make -j1 clean && make ${:build-common-options} TARGET=GENERIC)
@@ -37,6 +37,4 @@ make-options =
 make-targets =
   PREFIX="@@LOCATION@@" install
 environment =
-  PATH=${gcc:location}/bin:${patch:location}/bin:${perl:location}/bin:%(PATH)s
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64
+  PATH=${patch:location}/bin:${perl:location}/bin:%(PATH)s

component/pdftk/buildout.cfg

-[buildout]
-# Note: Locally provided gcc with gcj is used, as there is high unstability
-# in how gcj is functional on many operating systems.
-# Because of this the only way to have portable pdftk profile it is required
-# to provide working gcj and then have it used for pdftk compilation.
-extends =
-  ../fastjar/buildout.cfg
-  ../gcc/buildout.cfg
-
-parts = pdftk
-
-[pdftk-1.44-Makefile.Base.patch]
-recipe = hexagonit.recipe.download
-ignore-existing = true
-url = ${:_profile_base_location_}/${:filename}
-download-only = true
-md5sum = 04a3607213e4e638c1fd993321804499
-filename = pdftk-1.44-Makefile.Base.patch
-
-[pdftk-hooks-download]
-recipe = hexagonit.recipe.download
-ignore-existing = true
-url = ${:_profile_base_location_}/${:filename}
-filename = pdftk-hooks.py
-md5sum = d2a067b98953ad30ba1230f87dfb8b92
-download-only = true
-
-[pdftk]
-recipe = slapos.recipe.cmmi
-url = http://www.pdflabs.com/tools/pdftk-the-pdf-toolkit/pdftk-1.44-src.zip
-md5sum = 9eb50fffcd621a627d387750c60982b4
-configure-command = true
-patches =
-  ${pdftk-1.44-Makefile.Base.patch:location}/${pdftk-1.44-Makefile.Base.patch:filename}
-patch-options = -p1
-# pdftk does not work correcly with parallel building
-make-options =
-  -j1
-  -f Makefile.Redhat
-  DEST=${buildout:parts-directory}/${:_buildout_section_name_}
-
-pre-make-hook = ${pdftk-hooks-download:location}/${pdftk-hooks-download:filename}:pre_make_hook
-environment =
-  PATH=${gcc-java-minimal:location}/bin:${fastjar:location}/bin:%(PATH)s
-  LDFLAGS=-L${gcc-java-minimal:location}/lib -Wl,-rpath=${gcc-java-minimal:location}/lib -L${gcc-java-minimal:location}/lib64 -Wl,-rpath=${gcc-java-minimal:location}/lib64
-  LD_LIBRARY_PATH=${gcc-java-minimal:location}/lib:${gcc-java-minimal:location}/lib64

component/pdftk/pdftk-1.44-Makefile.Base.patch

-diff --git a/pdftk/Makefile.Base b/pdftk/Makefile.Base
-index 0bedd04..36a439e 100644
---- a/pdftk/Makefile.Base
-+++ b/pdftk/Makefile.Base
-@@ -35,22 +35,24 @@ javalib :
- 	$(MAKE) -f Makefile -iC $(JAVALIBPATH) all
- 
- attachments.o : attachments.cc attachments.h pdftk.h $(JAVALIB)
--	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -I$(JAVALIBPATH) attachments.cc -c
-+	$(CXX) $(CPPFLAGS) $(LDFLAGS) $(CXXFLAGS) -I$(JAVALIBPATH) attachments.cc -c
- 
- report.o : report.cc report.h pdftk.h $(JAVALIB)
--	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -I$(JAVALIBPATH) report.cc -c
-+	$(CXX) $(CPPFLAGS) $(LDFLAGS) $(CXXFLAGS) -I$(JAVALIBPATH) report.cc -c
- 
- pdftk.o : pdftk.cc pdftk.h attachments.h report.h $(JAVALIB) $(GCJ_LOCAL_LIB_FULL)
--	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -I$(JAVALIBPATH) pdftk.cc -c
-+	$(CXX) $(CPPFLAGS) $(LDFLAGS) $(CXXFLAGS) -I$(JAVALIBPATH) pdftk.cc -c
- 
- pdftk : pdftk.o attachments.o report.o $(JAVALIB) $(GCJ_LOCAL_LIB_FULL)
--	$(CXX) $(CXXFLAGS) attachments.o report.o pdftk.o $(JAVALIB) $(GCJ_LOCAL_LIB_FULL) $(LDLIBS) -o pdftk
-+	$(CXX) $(CXXFLAGS) $(LDFLAGS) attachments.o report.o pdftk.o $(JAVALIB) $(GCJ_LOCAL_LIB_FULL) $(LDLIBS) -o pdftk
- 
- install:
--	/usr/bin/install pdftk /usr/local/bin 
-+	mkdir -p ${DEST}/bin
-+	install pdftk ${DEST}/bin
- 
- uninstall:
--	$(RM) $(RMFLAGS) /usr/local/bin/pdftk
-+	$(RM) $(RMFLAGS) ${DEST}/pdftk
-+	rmdir ${DEST}
- 
- clean:
- 	$(RM) $(RMFLAGS) *.o

component/pdftk/pdftk-hooks.py

-import os
-def pre_make_hook(options, buildout):
-  # change to pdftk directory, where built process shall be done
-  os.chdir('pdftk')

component/powerdns/buildout.cfg

@@ -4,7 +4,6 @@ extends =
   ../automake/buildout.cfg
   ../bison/buildout.cfg
   ../flex/buildout.cfg
-  ../gcc/buildout.cfg
   ../git/buildout.cfg
   ../boost-lib/buildout.cfg
   ../libtool/buildout.cfg
@@ -28,7 +27,7 @@ configure-options =
   --with-dynmodules=""
   --without-lua
 environment =
-  PATH=${gcc:location}/bin:${make:location}/bin:${libtool:location}/bin:${pkgconfig:location}/bin:${bison:location}/bin:${flex:location}/bin:${git:location}/bin:${ragel:location}/bin:%(PATH)s
+  PATH=${make:location}/bin:${libtool:location}/bin:${pkgconfig:location}/bin:${bison:location}/bin:${flex:location}/bin:${git:location}/bin:${ragel:location}/bin:%(PATH)s
   LDFLAGS=-L${boost-lib:location}/lib -Wl,-rpath=${boost-lib:location}/lib -L${zlib:location}/lib -Wl,-rpath -Wl,${zlib:location}/lib -lz
   CPPFLAGS=-I${boost-lib:location}/include
 make-target =

component/python-2.7/buildout.cfg

@@ -67,10 +67,9 @@ post-install = cd '${:prefix}' &&
   sed -n 's,:#! */usr/bin/env \+python2\?$,,p' |
   xargs -d '\n' sed -i '1s,.*,#!${:executable},'
 
-extra-ldflags =
 # the entry "-Wl,-rpath=${file:location}/lib" below is needed by python-magic,
 # which would otherwise load the system libmagic.so with ctypes
 environment =
   PATH=${patch:location}/bin:${xz-utils:location}/bin:%(PATH)s
   CPPFLAGS=-I${zlib:location}/include -I${readline:location}/include -I${libexpat:location}/include -I${libffi:location}/include -I${ncurses:location}/include -I${ncurses:location}/include/ncursesw -I${bzip2:location}/include  -I${gdbm:location}/include -I${openssl:location}/include -I${sqlite3:location}/include -I${gettext:location}/include
-  LDFLAGS=-L${zlib:location}/lib -L${readline:location}/lib -L${libexpat:location}/lib -L${libffi:location}/lib -L${ncurses:location}/lib -L${bzip2:location}/lib -L${gdbm:location}/lib -L${openssl:location}/lib -L${sqlite3:location}/lib -Wl,-rpath=${zlib:location}/lib -Wl,-rpath=${readline:location}/lib -Wl,-rpath=${libexpat:location}/lib -Wl,-rpath=${libffi:location}/lib -Wl,-rpath=${ncurses:location}/lib -Wl,-rpath=${bzip2:location}/lib -Wl,-rpath=${gdbm:location}/lib -Wl,-rpath=${openssl:location}/lib -Wl,-rpath=${sqlite3:location}/lib -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -Wl,-rpath=${file:location}/lib ${:extra-ldflags}
+  LDFLAGS=-L${zlib:location}/lib -L${readline:location}/lib -L${libexpat:location}/lib -L${libffi:location}/lib -L${ncurses:location}/lib -L${bzip2:location}/lib -L${gdbm:location}/lib -L${openssl:location}/lib -L${sqlite3:location}/lib -Wl,-rpath=${zlib:location}/lib -Wl,-rpath=${readline:location}/lib -Wl,-rpath=${libexpat:location}/lib -Wl,-rpath=${libffi:location}/lib -Wl,-rpath=${ncurses:location}/lib -Wl,-rpath=${bzip2:location}/lib -Wl,-rpath=${gdbm:location}/lib -Wl,-rpath=${openssl:location}/lib -Wl,-rpath=${sqlite3:location}/lib -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -Wl,-rpath=${file:location}/lib

component/python-cocoapi/buildout.cfg

 [buildout]
 extends =
-  ../../stack/slapos.cfg
-  ../gcc/buildout.cfg
   ../cython/buildout.cfg
   ../scipy/buildout.cfg
 parts =
-  python-cocoapi-build-install-egg
+  pycocotools
 
 [python-cocoapi-repository]
-recipe = plone.recipe.command
-stop-on-error = true
+recipe = slapos.recipe.build:gitclone
 repository = https://github.com/cocodataset/cocoapi.git
-tag = master
-git-binary = ${git:location}/bin/git
-patch-binary = ${patch:location}/bin/patch
-location = ${buildout:parts-directory}/${:_buildout_section_name_}
-command = export HOME=${:location}; (${:git-binary} clone --quiet -b ${:tag} ${:repository} ${:location}; cd ${:location}; ${:patch-binary} -p1 -d . < ${:_profile_base_location_}/setup.py.patch ) || (rm -fr ${:location}; exit 1)
+git-executable = ${git:location}/bin/git
+revision = 0d86027d941482ae9649fb9e6e871704efc48b06
 
-[python-cocoapi-build-interpreter]
-recipe = zc.recipe.egg
-initialization =
-  import scipy.spatial.ckdtree # load our own libstdc++ explicitly at the very beginning
-eggs =
-  setuptools
+[pycocotools]
+recipe = zc.recipe.egg:develop
+egg = ${:_buildout_section_name_}
+setup = ${python-cocoapi-repository:location}/PythonAPI
+environment = scipy-env
+setup-eggs =
   ${cython:egg}
-  ${scipy:egg}
   ${numpy:egg}
-interpreter = python-cocoapi-build-interpreter
-scripts = python-cocoapi-build-interpreter
-location = ${buildout:parts-directory}/${:_buildout_section_name_}
-
-[python-cocoapi-build]
-recipe = slapos.recipe.build
-workdir = ${python-cocoapi-repository:location}/PythonAPI
-python-bin = ${buildout:bin-directory}/${python-cocoapi-build-interpreter:interpreter}
-gcc-location = ${gcc:location}
-install =
-  import os
-  os.makedirs(location)
-  workdir = options['workdir']
-  python_bin = options['python-bin']
-  gcc_location = options['gcc-location']
-  env = {'PATH':':'.join([gcc_location+'/bin',
-                          os.environ['PATH']]),
-         'CC':gcc_location+'/bin/gcc',
-         'CXX':gcc_location+'/bin/g++',
-         }
-  call([python_bin, 'setup.py', 'build_ext'], cwd=workdir, env=env)
-  call([python_bin, 'setup.py', 'bdist_egg'], cwd=workdir, env=env)
-
-[python-cocoapi-build-install-egg]
-# BUG: This section does FS changes outside location.
-recipe = slapos.recipe.build
-unzip-binary = ${unzip:location}/bin/unzip
-python-cocoapi-repository-path = ${python-cocoapi-repository:location}
-need-python-cocoapi-build = ${python-cocoapi-build:location}
-egg = pycocotools
-install =
-  import os
-  os.makedirs(location)
-  workdir = options['python-cocoapi-repository-path']+'/PythonAPI'
-  egg_name = 'pycocotools-2.0-py2.7-linux-x86_64.egg'
-  dist_dir = os.path.join(workdir, 'dist')
-  dest_dir = os.path.join(self.buildout['buildout']['eggs-directory'], egg_name)
-  call([options['unzip-binary'], '-o', os.path.join(dist_dir, egg_name), '-d', dest_dir])
+  ${scipy:egg}

component/python-cocoapi/setup.py.patch

-diff --git a/PythonAPI/setup.py b/PythonAPI/setup.py
-index eb3d508..d619b3c 100644
---- a/PythonAPI/setup.py
-+++ b/PythonAPI/setup.py
-@@ -1,4 +1,5 @@
--from distutils.core import setup
-+#from distutils.core import setup
-+from setuptools import setup
- from Cython.Build import cythonize
- from distutils.extension import Extension
- import numpy as np
-@@ -21,4 +22,4 @@ setup(name='pycocotools',
-       version='2.0',
-       ext_modules=
-           cythonize(ext_modules)
--      )
-\ No newline at end of file
-+      )

component/python-slip/buildout.cfg

@@ -4,6 +4,7 @@ parts =
   python-slip-egg
 
 [python-slip]
+# BUG: This section does FS changes outside location.
 recipe = slapos.recipe.cmmi
 url = https://github.com/nphilipp/python-slip/releases/download/python-slip-0.6.1/python-slip-0.6.1.tar.bz2
 md5sum = a6d8ee96245fc21785d4c1c062c85f2f

component/python3/buildout.cfg

@@ -54,20 +54,19 @@ environment =
 
 [python3.6]
 <= python3-common
+version = 3.6
 package_version = 3.6.10
 md5sum = 986078f11b39074be22a199e56491d98
 
-# Python 3.7 have to use gcc 8(actually, gcc 4+)
-# See https://bugs.python.org/issue34112
-# I think gcc 5 may meet the requirement, use gcc 8 all in one step
 [python3.7]
 <= python3-common
+version = 3.7
 package_version = 3.7.2
 md5sum = df6ec36011808205beda239c72f947cb
 patch-options =
 patches =
 environment =
-  PATH=${gcc-8.2:location}/bin::${xz-utils:location}/bin:%(PATH)s
+  PATH=${xz-utils:location}/bin:%(PATH)s
   CPPFLAGS=-I${zlib:location}/include -I${xz-utils:location}/include -I${readline:location}/include -I${libexpat:location}/include -I${libffi:location}/include -I${ncurses:location}/include -I${ncurses:location}/include/ncursesw -I${bzip2:location}/include  -I${gdbm:location}/include -I${openssl:location}/include -I${sqlite3:location}/include -I${gettext:location}/include
   LDFLAGS=-L${zlib:location}/lib -L${xz-utils:location}/lib -L${readline:location}/lib -L${libexpat:location}/lib -L${libffi:location}/lib -L${ncurses:location}/lib -L${bzip2:location}/lib -L${gdbm:location}/lib -L${openssl:location}/lib -L${sqlite3:location}/lib -Wl,-rpath=${zlib:location}/lib -Wl,-rpath=${xz-utils:location}/lib -Wl,-rpath=${readline:location}/lib -Wl,-rpath=${libexpat:location}/lib -Wl,-rpath=${libffi:location}/lib -Wl,-rpath=${ncurses:location}/lib -Wl,-rpath=${bzip2:location}/lib -Wl,-rpath=${gdbm:location}/lib -Wl,-rpath=${openssl:location}/lib -Wl,-rpath=${sqlite3:location}/lib -L${gettext:location}/lib -Wl,-rpath=${gettext:location}/lib -Wl,-rpath=${file:location}/lib
-  LD_LIBRARY_PATH=${libpng:location}/lib:${gcc-8.2:location}/lib:${gcc-8.2:location}/lib64
\ No newline at end of file
+#  LD_LIBRARY_PATH=${libpng:location}/lib

component/pytorch/buildout.cfg

 [buildout]
 extends =
-  ../../stack/slapos.cfg
-  ../gcc/buildout.cfg
   ../openblas/buildout.cfg
   ../cmake/buildout.cfg
   ../python-cffi/buildout.cfg
@@ -10,20 +8,25 @@ extends =
   ../pillow/buildout.cfg
   ../scipy/buildout.cfg
   ../matplotlib/buildout.cfg
-  ../unzip/buildout.cfg
 parts =
-  pytorch-egg
+  torch
 
 [pytorch-repository]
 recipe = plone.recipe.command
 stop-on-error = true
 repository = https://github.com/pytorch/pytorch
-tag = master
 commit = 4af66c43045a317b477918c503d105f565b4a66b
-git-binary = ${git:location}/bin/git
-patch-binary = ${patch:location}/bin/patch
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
-command = export HOME=${:location}; (${:git-binary} clone --recursive --quiet -b ${:tag} ${:repository} ${:location}; cd ${:location}; ${:git-binary} checkout ${:commit}; ${:patch-binary} -p1 -d . < ${:_profile_base_location_}/pytorch.4af66c4.patch ) || (rm -fr ${:location}; exit 1)
+command =
+  set -e
+  export PATH=${git:location}/bin:$PATH
+  ( git clone --quiet -n ${:repository} ${:location}
+    cd ${:location}
+    git config submodule.recurse true
+    git reset --merge ${:commit}
+    git submodule update --init
+    git apply ${:_profile_base_location_}/pytorch.4af66c4.patch
+  ) || { rm -fr ${:location}; exit 1; }
 
 [pytorch-build-interpreter]
 recipe = zc.recipe.egg
@@ -42,69 +45,50 @@ interpreter = pytorch-build-interpreter
 scripts = pytorch-build-interpreter
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
 
-[pytorch-build]
+[torch]
 recipe = slapos.recipe.build
+egg = ${:_buildout_section_name_}
 workdir = ${pytorch-repository:location}
+egg-name = ${:egg}-${versions:torch}-py${python:version}-linux-x86_64.egg
+location = ${buildout:eggs-directory}/${:egg-name}
 python-bin = ${buildout:bin-directory}/${pytorch-build-interpreter:interpreter}
 no-cuda = 0
 cmake-bin = ${cmake:location}/bin
 git-bin = ${git:location}/bin
 binutils-location = ${binutils:location}
-gcc-location = ${gcc:location}
 openblas-location = ${openblas:location}
 install =
-  import os
-  os.makedirs(location)
+  import os, shutil
+  from setuptools.archive_util import unpack_archive
   workdir = options['workdir']
   python_bin = options['python-bin']
   binutils_location = options['binutils-location']
-  gcc_location = options['gcc-location']
   openblas_location = options['openblas-location']
   env = {'PYTHONPATH':workdir,
          'PATH':':'.join([options['cmake-bin'],
                           options['git-bin'],
                           binutils_location+'/bin',
-                          gcc_location+'/bin',
                           os.environ['PATH']]),
-         'CMAKE_INCLUDE_PATH':':'.join([gcc_location+'/include',
-                                        binutils_location+'/include',
+         'CMAKE_INCLUDE_PATH':':'.join([binutils_location+'/include',
                                         openblas_location+'/include',
                                         ]),
-         'CMAKE_LIBRARY_PATH':':'.join([gcc_location+'/lib',
-                                        gcc_location+'/lib64',
-                                        binutils_location+'/lib',
+         'CMAKE_LIBRARY_PATH':':'.join([binutils_location+'/lib',
                                         openblas_location+'/lib',
                                         ]),
-         'CC':gcc_location+'/bin/gcc',
-         'CXX':gcc_location+'/bin/g++',
          'PYTORCH_PYTHON':python_bin,
-         'SLAPOS_COMPILE_ARGS':' '.join(['-Wl,-rpath,'+gcc_location+'/lib',
-                                         '-Wl,-rpath,'+gcc_location+'/lib64',
-                                         '-Wl,-rpath,'+binutils_location+'/lib',
-                                         '-Wl,-rpath,'+openblas_location+'/lib',
-                                         ])
+         'SLAPOS_COMPILE_ARGS':'-Wl,-rpath,'+openblas_location+'/lib',
          }
   if options.get('no-cuda') == '1':
     env['NO_CUDA'] = '1'
-  call([python_bin, 'setup.py', 'build'], cwd=workdir, env=env)
-  call([python_bin, 'setup.py', 'bdist_egg'], cwd=workdir, env=env)
-
-[pytorch-build-install-egg]
-# BUG: This section does FS changes outside location.
-recipe = slapos.recipe.build
-unzip-binary = ${unzip:location}/bin/unzip
-pytorch-repository-path = ${pytorch-repository:location}
-location = ${buildout:parts-directory}/${:_buildout_section_name_}
-need-pytorch-build = ${pytorch-build:location}
-egg = torch
-install =
-  import os
-  os.makedirs(location)
-  workdir = options['pytorch-repository-path']
-  egg_name = 'torch-0.2.0+4af66c4-py2.7-linux-x86_64.egg'
-  dist_dir = os.path.join(workdir, 'dist')
-  dest_dir = os.path.join(self.buildout['buildout']['eggs-directory'], egg_name)
-  call([options['unzip-binary'], '-o', os.path.join(dist_dir, egg_name), '-d', dest_dir])
+  os.chdir(workdir)
+  try:
+    call([python_bin, 'setup.py', 'build'], env=env)
+    call([python_bin, 'setup.py', 'bdist_egg'], env=env)
+    unpack_archive(os.path.join('dist', options['egg-name']), location)
+  finally:
+    for d in 'build', 'dist':
+      if os.path.exists(d):
+        shutil.rmtree(d)
 
 [pytorch-egg]
 recipe = zc.recipe.egg
@@ -114,9 +98,9 @@ eggs =
   ${scipy:egg}
   ${numpy:egg}
   ${python-PyYAML:egg}
-  ${pytorch-build-install-egg:egg}
+  ${torch:egg}
   ${pillow-python:egg}
-  ${python-cocoapi-build-install-egg:egg}
+  ${pycocotools:egg}
   ${matplotlib:egg}
   six
   torchvision
@@ -125,3 +109,4 @@ scripts = pytorch-python
 
 [versions]
 torchvision = 0.1.6
+torch = 0.2.0+4af66c4

component/qt/buildout.cfg

 [buildout]
 extends =
   ../xorg/buildout.cfg
-  ../gcc/buildout.cfg
 
 parts =
   qt4-qmake
@@ -23,9 +22,8 @@ configure-options =
   -no-opengl
   -nomake examples
 environment =
-  PATH=${gcc:location}/bin:%(PATH)s
   CPPFLAGS=-I${libX11:location}/include -I${xproto:location}/include -I${libXext:location}/include
-  LDFLAGS=-L${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib -L${gcc:location}/lib64 -Wl,-rpath=${gcc:location}/lib64 -L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${xproto:location}/lib -Wl,-rpath=${xproto:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib
+  LDFLAGS=-L${libX11:location}/lib -Wl,-rpath=${libX11:location}/lib -L${xproto:location}/lib -Wl,-rpath=${xproto:location}/lib -L${libXext:location}/lib -Wl,-rpath=${libXext:location}/lib
 make-binary = true
 post-install =
   mkdir -p ${:location}/bin

component/r-language/buildout.cfg

 [buildout]
 extends =
   ../bzip2/buildout.cfg
-  ../gcc/buildout.cfg
   ../openblas/buildout.cfg
   ../pcre/buildout.cfg
   ../readline/buildout.cfg
@@ -32,6 +31,5 @@ configure-options =
   --without-ICU
   --without-x
 environment =
-  PATH=${gcc:location}/bin:%(PATH)s
   CPPFLAGS=-I${bzip2:location}/include -I${openblas:location}/include -I${pcre:location}/include -I${readline:location}/include -I${ncurses:location}/include -I${xz-utils:location}/include -I${zlib:location}/include
-  LDFLAGS=-L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib -L${gcc:location}/lib64 -Wl,-rpath=${gcc:location}/lib64 -L${ncurses:location}/lib -Wl,-rpath=${ncurses:location}/lib -L${openblas:location}/lib -Wl,-rpath=${openblas:location}/lib -L${pcre:location}/lib -Wl,-rpath=${pcre:location}/lib -L${readline:location}/lib -Wl,-rpath=${readline:location}/lib -L${xz-utils:location}/lib -Wl,-rpath=${xz-utils:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  LDFLAGS=-L${bzip2:location}/lib -Wl,-rpath=${bzip2:location}/lib -L${ncurses:location}/lib -Wl,-rpath=${ncurses:location}/lib -L${openblas:location}/lib -Wl,-rpath=${openblas:location}/lib -L${pcre:location}/lib -Wl,-rpath=${pcre:location}/lib -L${readline:location}/lib -Wl,-rpath=${readline:location}/lib -L${xz-utils:location}/lib -Wl,-rpath=${xz-utils:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib

component/ragel/buildout.cfg

 [buildout]
 extends =
-  ../../component/gcc/buildout.cfg
-  ../../component/make/buildout.cfg
+  ../make/buildout.cfg
 
 parts =
   ragel
@@ -10,10 +9,5 @@ parts =
 recipe = slapos.recipe.cmmi
 url = http://www.colm.net/files/ragel/ragel-6.8.tar.gz
 md5sum = 1bb39745ac23da449019f9f2cb4b0d01
-configure-options =
-  --prefix=${buildout:parts-directory}/${:_buildout_section_name_}
 environment =
-  PATH=${make:location}/bin:${gcc:location}/bin:%(PATH)s
-make-target =
-  
-  install
+  PATH=${make:location}/bin:%(PATH)s

component/re6stnet/buildout.cfg

 [buildout]
 extends =
+  ../defaults.cfg
   ../babeld/buildout.cfg
   ../geoip2/buildout.cfg
   ../openvpn/buildout.cfg
@@ -22,4 +23,4 @@ eggs =
 initialization =
   import os
   os.environ['GEOIP2_MMDB'] = "${geolite2-country:location}/GeoLite2-Country.mmdb"
-  os.environ['PATH'] = "${openvpn:location}/sbin:${babeld:location}/bin:${openssl:location}/bin:${python2.7:location}/bin:" + os.environ.get('PATH', '/usr/sbin:/usr/bin:/sbin:/bin')
+  os.environ['PATH'] = "${openvpn:location}/sbin:${babeld:location}/bin:${openssl:location}/bin:${python:location}/bin:" + os.environ.get('PATH', '/usr/sbin:/usr/bin:/sbin:/bin')

component/rpy2/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../pcre/buildout.cfg
   ../r-language/buildout.cfg
   ../xz-utils/buildout.cfg
@@ -10,7 +9,7 @@ extends =
 # see ../manpy/buildout.cfg as an example
 
 [rpy2_env]
-PATH = ${gcc:location}/bin:${r-language:location}/bin:%(PATH)s
+PATH = ${r-language:location}/bin:%(PATH)s
 
 [rpy2]
 recipe = zc.recipe.egg:custom
@@ -21,8 +20,6 @@ initialization =
   import os
   os.environ['PATH'] = '${r-language:location}/bin' + os.pathsep + os.environ.get('PATH', '')
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${pcre:location}/lib
   ${readline:location}/lib
   ${xz-utils:location}/lib

component/scikit-image/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../numpy/openblas.cfg
   ../cython/buildout.cfg
   ../scipy/buildout.cfg
@@ -25,8 +24,6 @@ setup-eggs =
   ${pillow-python:egg}
   networkx
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib
 
 [scikit-image-repository]
@@ -50,6 +47,4 @@ setup-eggs =
   ${pillow-python:egg}
   networkx
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib

component/scikit-learn/buildout.cfg

 [buildout]
 extends =
-  ../gcc/buildout.cfg
   ../cython/buildout.cfg
   ../numpy/openblas.cfg
   ../scipy/buildout.cfg
@@ -19,8 +18,6 @@ setup-eggs =
   ${numpy:egg}
   ${scipy:egg}
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib
 
 [scikit-learn-repository]
@@ -41,6 +38,4 @@ setup-eggs =
   ${numpy:egg}
   ${scipy:egg}
 rpath =
-  ${gcc:location}/lib
-  ${gcc:location}/lib64
   ${openblas:location}/lib

component/tensorboard/buildout.cfg

 [buildout]
 extends =
-  ../zip/buildout.cfg
   ../bazel/buildout.cfg
+  ../git/buildout.cfg
 parts =
-  slapos-cookbook-develop
-  slapos-cookbook
-  tensorboard-build-install-egg
+  tensorflow_tensorboard
 
 [tensorboard-repository]
 recipe = plone.recipe.command
 stop-on-error = true
 repository = https://github.com/tensorflow/tensorboard
-tag = 0.4.0
-git-binary = ${git:location}/bin/git
-patch-binary = ${patch:location}/bin/patch
+commit = ${versions:tensorflow-tensorboard}
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
-command = export HOME=${:location}; (${:git-binary} clone --quiet -b ${:tag} ${:repository} ${:location}; cd ${buildout:parts-directory} ; ${:patch-binary} -p1 -d ${:_buildout_section_name_} < ${:_profile_base_location_}/0.4.0.patch ) || (rm -fr ${:location}; exit 1)
+command =
+  set -e
+  export PATH=${git:location}/bin:$PATH
+  ( git clone --quiet -n ${:repository} ${:location}
+    cd ${:location}
+    git reset --merge ${:commit}
+    git apply ${:_profile_base_location_}/0.4.0.patch
+  ) || { rm -fr ${:location}; exit 1; }
 
-[tensorboard-build]
+[tensorflow_tensorboard]
 recipe = slapos.recipe.build
+egg = ${:_buildout_section_name_}
 workdir = ${tensorboard-repository:location}
-gcc-bin = ${gcc:location}/bin
-gcc-lib = ${gcc:location}/lib
-gcc-lib64 = ${gcc:location}/lib64
+egg-name = ${:egg}-${versions:tensorflow-tensorboard}-py${python:version}.egg
+location = ${buildout:eggs-directory}/${:egg-name}
 numpy-python-command = ${buildout:bin-directory}/${numpy-egg:interpreter}
-python27-lib = ${python2.7:location}/lib
+python-lib = ${python:location}/lib
 java_home_bin = ${bazel:java_home}/bin
 bazel-bin = ${bazel:location}/bin
 install =
-  import os
-  os.makedirs(location)
+  import os, shutil
+  from setuptools.archive_util import unpack_archive
   workdir = options['workdir']
-  env = {'PATH':':'.join([options['gcc-bin'],
-                          options['java_home_bin'],
+  env = {'PATH':':'.join([options['java_home_bin'],
                           options['bazel-bin'],
                           os.environ['PATH']]),
-         'COMPILER_PATH':':'.join([options['gcc-bin'],
-                                   os.environ.get('COMPILER_PATH') or '']),
-         'LIBRARY_PATH':':'.join([options['gcc-lib'],
-                                  options['gcc-lib64'],
-                                  os.environ.get('LIBRARY_PATH') or '']),
          'PYTHON_BIN_PATH':options['numpy-python-command'],
-         'PYTHON_LIB_PATH':options['python27-lib'],
+         'PYTHON_LIB_PATH':options['python-lib'],
          }
-  env['LD_LIBRARY_PATH'] = env['LIBRARY_PATH']
   bazel_command = ['bazel', 'build', '--spawn_strategy=standalone', '--verbose_failures', '--sandbox_debug', '//tensorboard/pip_package:build_pip_package']
-  call(bazel_command, cwd=workdir, env=env)
-
-[tensorboard-build-install-egg]
-recipe = slapos.recipe.build
-unzip-binary = ${unzip:location}/bin/unzip
-tensorboard-repository-path = ${tensorboard-repository:location}
-need-tensorboard-build = ${tensorboard-build:location}
-egg = tensorflow-tensorboard
-bazel-bin = ${bazel:location}/bin
-java_home_bin = ${bazel:java_home}/bin
-numpy-python-command = ${buildout:bin-directory}/${numpy-egg:interpreter}
-install =
-  import os
-  os.makedirs(location)
-  workdir = options['tensorboard-repository-path']
-  egg_name = 'tensorflow_tensorboard-0.4.0-py2.7.egg'
-  dist_dir = os.path.join(workdir, 'dist')
-  dest_dir = os.path.join(self.buildout['buildout']['eggs-directory'], egg_name)
-  env = {'PATH':':'.join([options['bazel-bin'],
-                          options['java_home_bin'],
-                          os.environ['PATH']]),
-         'PYTHON_BIN_PATH':options['numpy-python-command'],
-         }
-  call(['tensorboard/pip_package/build_pip_package.sh', dist_dir], cwd=workdir, env=env)
-  call([options['unzip-binary'], '-o', os.path.join(dist_dir, egg_name), '-d', dest_dir])
+  os.chdir(workdir)
+  try:
+    call(bazel_command, env=env)
+    call(('tensorboard/pip_package/build_pip_package.sh',
+          os.path.join(workdir, 'dist')), env=env)
+    unpack_archive(os.path.join('dist', options['egg-name']), location)
+  finally:
+    for d in 'dist',:
+      if os.path.exists(d):
+        shutil.rmtree(d)
 
 [versions]
+tensorflow-tensorboard = 0.4.0

component/tensorflow/buildout.cfg

 [buildout]
 extends =
-  ../../stack/slapos.cfg
   ../scipy/buildout.cfg
-  ../zip/buildout.cfg
-  ../bazel/buildout.cfg
   ../protobuf-python/buildout.cfg
   ../tensorboard/buildout.cfg
 parts =
-  slapos-cookbook-develop
-  slapos-cookbook
-  tensorflow-build-install-egg
+  tensorflow
 
 [numpy-egg]
 recipe = zc.recipe.egg
@@ -21,17 +16,22 @@ eggs =
   ${numpy:egg}
 interpreter = numpy-python
 scripts = numpy-python
-location = ${buildout:parts-directory}/${:_buildout_section_name_}
 
 [tensorflow-repository]
 recipe = plone.recipe.command
 stop-on-error = true
 repository = https://github.com/tensorflow/tensorflow
-tag = v1.4.0
-git-binary = ${git:location}/bin/git
-patch-binary = ${patch:location}/bin/patch
+commit = v${versions:tensorflow}
 location = ${buildout:parts-directory}/${:_buildout_section_name_}
-command = export HOME=${:location}; (${:git-binary} clone --recurse-submodules --quiet -b ${:tag} ${:repository} ${:location}; cd ${buildout:parts-directory} ; ${:patch-binary} -p1 -d ${:_buildout_section_name_} < ${:_profile_base_location_}/tensorflow-r1.4.patch ) || (rm -fr ${:location}; exit 1)
+command =
+  set -e
+  export PATH=${git:location}/bin:$PATH
+  ( git clone --quiet -n ${:repository} ${:location}
+    cd ${:location}
+    git reset --merge ${:commit}
+    git apply ${:_profile_base_location_}/tensorflow-r1.4.patch
+  ) || { rm -fr ${:location}; exit 1; }
+
 
 [cuda]
 tf_need_cuda = 1
@@ -41,32 +41,29 @@ tf_cuda_compute_capabilities = 5.2,6.1
 cuda_toolkit_path = /usr/local/cuda
 cudnn_install_path = /usr/local/cuda
 
-[tensorflow-build]
+[tensorflow]
 recipe = slapos.recipe.build
+egg = ${:_buildout_section_name_}
 workdir = ${tensorflow-repository:location}
-gcc-bin = ${gcc:location}/bin
-gcc-lib = ${gcc:location}/lib
-gcc-lib64 = ${gcc:location}/lib64
+egg-name = ${:egg}-${versions:tensorflow}-py${python:version}-linux-x86_64.egg
+location = ${buildout:eggs-directory}/${:egg-name}
 numpy-python-command = ${buildout:bin-directory}/${numpy-egg:interpreter}
-python27-lib = ${python2.7:location}/lib
+python-lib = ${python:location}/lib
 java_home_bin = ${bazel:java_home}/bin
 bazel_bin = ${bazel:location}/bin
 need_cuda = ${cuda:cuda_toolkit_path}
+depends =
+  ${tensorflow_tensorboard:recipe}
+  ${protobuf-python:egg}
 install =
-  import os
-  os.makedirs(location)
+  import os, shutil
+  from setuptools.archive_util import unpack_archive
   workdir = options['workdir']
-  env = {'PATH':':'.join([options['gcc-bin'],
-                          options['java_home_bin'],
+  env = {'PATH':':'.join([options['java_home_bin'],
                           options['bazel_bin'],
                           os.environ['PATH']]),
-         'COMPILER_PATH':':'.join([options['gcc-bin'],
-                                   os.environ.get('COMPILER_PATH') or '']),
-         'LIBRARY_PATH':':'.join([options['gcc-lib'],
-                                  options['gcc-lib64'],
-                                  os.environ.get('LIBRARY_PATH') or '']),
          'PYTHON_BIN_PATH':options['numpy-python-command'],
-         'PYTHON_LIB_PATH':options['python27-lib'],
+         'PYTHON_LIB_PATH':options['python-lib'],
          'CC_OPT_FLAGS':'-march=native',
          'TF_NEED_JEMALLOC':'1',
          'TF_ENABLE_XLA':'0',
@@ -79,7 +76,6 @@ install =
          'TF_NEED_MPI':'0',
          'TF_NEED_CUDA':self.buildout['cuda']['tf_need_cuda'],
          ##### FOR CUDA #####
-         'GCC_HOST_COMPILER_PATH':os.path.join(options['gcc-bin'], 'gcc'),
          'TF_CUDA_VERSION':self.buildout['cuda']['tf_cuda_version'],
          'CUDA_TOOLKIT_PATH':self.buildout['cuda']['cuda_toolkit_path'],
          'TF_CUDNN_VERSION':self.buildout['cuda']['tf_cudnn_version'],
@@ -88,30 +84,21 @@ install =
          ####################
          }
   if not os.path.exists(env['CUDA_TOOLKIT_PATH']): env['TF_NEED_CUDA'] = '0'
-  env['LD_LIBRARY_PATH'] = env['LIBRARY_PATH']
-  env['LDFLAGS'] = '-lW,-rpath='+options['gcc-lib64']
   call(['./configure'], cwd=workdir, env=env)
   bazel_command = (env['TF_NEED_CUDA'] == '1' and
     ['bazel', 'build', '-c', 'opt', '--copt', '-march=native', '--config', 'cuda', '-s', '--verbose_failures', '//tensorflow/tools/pip_package:build_pip_package']
     or
     ['bazel', 'build', '-c', 'opt', '--copt', '-march=native', '-s', '--verbose_failures', '//tensorflow/tools/pip_package:build_pip_package'])
-  call(bazel_command, cwd=workdir, env=env)
+  os.chdir(workdir)
+  try:
+    call(bazel_command, env=env)
+    call(('bazel-bin/tensorflow/tools/pip_package/build_pip_package',
+          os.path.join(workdir, 'dist')))
+    unpack_archive(os.path.join('dist', options['egg-name']), location)
+  finally:
+    for d in 'dist',:
+      if os.path.exists(d):
+        shutil.rmtree(d)
 
-[tensorflow-build-install-egg]
-# BUG: This section does FS changes outside location.
-recipe = slapos.recipe.build
-unzip-binary = ${unzip:location}/bin/unzip
-tensorflow-repository-path = ${tensorflow-repository:location}
-need-tensorboard-build = ${tensorboard-build:location}
-need-tensorflow-build = ${tensorflow-build:location}
-need-protobuf-python = ${protobuf-python:egg}
-egg = tensorflow
-install =
-  import os
-  os.makedirs(location)
-  workdir = options['tensorflow-repository-path']
-  egg_name = 'tensorflow-1.4.0-py2.7-linux-x86_64.egg'
-  dist_dir = os.path.join(workdir, 'dist')
-  dest_dir = os.path.join(self.buildout['buildout']['eggs-directory'], egg_name)
-  call(['bazel-bin/tensorflow/tools/pip_package/build_pip_package', dist_dir], cwd=workdir)
-  call([options['unzip-binary'], '-o', os.path.join(dist_dir, egg_name), '-d', dest_dir])
+[versions]
+tensorflow = 1.4.0

component/tesseract/buildout.cfg

@@ -2,7 +2,6 @@
 extends =
   ../autoconf/buildout.cfg
   ../automake/buildout.cfg
-  ../gcc/buildout.cfg
   ../jbigkit/buildout.cfg
   ../leptonica/buildout.cfg
   ../libpng/buildout.cfg
@@ -33,10 +32,9 @@ configure-options =
 # its trained data, so we set its datarootdir above to a controlled location
 
 environment =
-  PATH=${pkgconfig:location}/bin:${autoconf:location}/bin:${automake:location}/bin:${gcc:location}/bin:${libtool:location}/bin:${m4:location}/bin:${patch:location}/bin:%(PATH)s
+  PATH=${pkgconfig:location}/bin:${autoconf:location}/bin:${automake:location}/bin:${libtool:location}/bin:${m4:location}/bin:${patch:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
-  LD_LIBRARY_PATH=${gcc:location}/lib:${gcc:location}/lib64
-  LDFLAGS=-Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64 -L${leptonica:location}/lib -Wl,-rpath=${leptonica:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  LDFLAGS=-L${leptonica:location}/lib -Wl,-rpath=${leptonica:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
 
 [tesseract-traineddata]
 location = ${buildout:parts-directory}/${:_buildout_section_name_}

component/wget/buildout.cfg

@@ -26,6 +26,10 @@ configure-options =
   --with-zlib-lib=${zlib:location}
 
 environment =
+# Python 3 is used for things we don't need. This is an optional dependency,
+# unless PYTHON is set (previously set by [python]): wget complains (rightly)
+# if it points to Python 2.7 (which we may still use).
+  PYTHON=
   PATH=${gettext:location}/bin:${lunzip:location}/bin:${patch:location}/bin:${perl:location}/bin:${pkgconfig:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${openssl:location}/lib/pkgconfig
   LDFLAGS=-L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${openssl:location}/lib -L${pcre:location}/lib -Wl,-rpath=${pcre:location}/lib -Wl,-rpath=${openssl:location}/lib

software/cloudooo/software-common.cfg

@@ -7,6 +7,11 @@ extends =
 parts =
   ${cloudooo-buildout:parts}
 
+[gcc]
+# For old version of glibmm.
+part = gcc-5.5
+max_version = 6
+
 [cloudooo-buildout]
 parts =
   ${stack-cloudooo-buildout:parts}

software/davstorage/common.cfg

@@ -8,7 +8,6 @@ extends =
   ../../component/dcron/buildout.cfg
   ../../component/logrotate/buildout.cfg
   ../../component/lxml-python/buildout.cfg
-  ../../component/python-2.7/buildout.cfg
   ../../component/gzip/buildout.cfg
 
 parts =
@@ -24,7 +23,6 @@ module = davstorage
 
 [instance-recipe-egg]
 recipe = zc.recipe.egg
-python = python2.7
 eggs = ${instance-recipe:egg}
 
 [application]

software/dream/software.cfg

@@ -13,6 +13,10 @@ parts =
   npm_install
   instance
 
+[gcc]
+# Always build GCC for Fortran (see openblas).
+max_version = 0
+
 [instance]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/${:filename}

software/etherpad-lite/common.cfg

@@ -11,7 +11,6 @@ extends =
   ../../component/dcron/buildout.cfg
   ../../component/logrotate/buildout.cfg
   ../../component/lxml-python/buildout.cfg
-  ../../component/python-2.7/buildout.cfg
   ../../component/gzip/buildout.cfg
   ../../component/git/buildout.cfg
   ../../component/nodejs/buildout.cfg

software/gateone/software.cfg

@@ -11,7 +11,6 @@ extends =
   ../../component/python-kerberos/buildout.cfg
   ../../component/gateone/buildout.cfg
   ../../component/dtach/buildout.cfg
-  ../../component/python-2.7/buildout.cfg
   ../../component/nginx/buildout.cfg
   ../../stack/slapos.cfg
 

software/gitlab/software.cfg

@@ -232,7 +232,6 @@ command = bash -c ". ${gowork:env.sh} && CGO_CFLAGS=-I${:git2go}/include CGO_LDF
 
 [gowork]
 golang  = ${golang1.12:location}
-gcc-bin-directory = ${golang1.12:gcc-bin-directory}
 # gitlab.com/gitlab-org/gitlab-workhorse
 # gitlab.com/gitlab-org/gitlab-workhorse/cmd/gitlab-zip-cat
 # gitlab.com/gitlab-org/gitlab-workhorse/cmd/gitlab-zip-metadata

software/grafana/software.cfg

@@ -50,7 +50,6 @@ promtail-bin = ${:bin}/promtail
 
 # use recent go
 golang  = ${golang1.12:location}
-gcc-bin-directory  = ${golang1.12:gcc-bin-directory}
 
 [gowork.goinstall]
 command = :

software/hellorina/instance-root.cfg.in

@@ -32,7 +32,7 @@ return =
 
 [proxy]
 recipe = slapos.cookbook:wrapper
-command-line = {{ python_location }}/bin/python2.7 {{ rina_proxy }} ${server:instance-guid} ${:ipv6} ${:port}
+command-line = {{ python_executable }} {{ rina_proxy }} ${server:instance-guid} ${:ipv6} ${:port}
 wrapper-path = ${directory:service}/proxy
 environment =
   PATH={{ rina_tools_location }}/bin:%(PATH)s

software/hellorina/instance.cfg.in

@@ -28,7 +28,7 @@ template = {{ instance_root }}
 extra-context =
     import urlparse urlparse
     key ipv6 slap-configuration:ipv6-random
-    raw python_location {{ python_location }}
+    raw python_executable {{ python_executable }}
     raw rina_proxy {{ rina_proxy }}
 
 [server]

software/hellorina/software.cfg

@@ -9,13 +9,13 @@ parts =
 [template]
 recipe = slapos.recipe.template:jinja2
 template = ${:_profile_base_location_}/instance.cfg.in
-md5sum = e513082329961dfbbcec94e817f1e3bc
+md5sum = f6c61225990986d94d0017b07b873aa7
 # XXX: "template.cfg" is hardcoded in instanciation recipe
 rendered = ${buildout:directory}/template.cfg
 context =
     key develop_eggs_directory buildout:develop-eggs-directory
     key eggs_directory buildout:eggs-directory
-    key python_location python2.7:location
+    key python_executable python:executable
     key rina_tools_location rina-tools:location
     key instance_root instance-root:target
     key instance_server instance-server:target
@@ -29,7 +29,7 @@ mode = 644
 
 [instance-root]
 <= download-base
-md5sum = 8ba6905c430e69a14db1be386f932c0f
+md5sum = f647054be67998f9eece174f106c4464
 
 [instance-server]
 <= download-base

software/jupyter/software.cfg

@@ -12,6 +12,10 @@ parts +=
   jupyter-notebook-initialized-scripts
   instance-jupyter-notebook
 
+[gcc]
+# Always build GCC for Fortran (see openblas).
+max_version = 0
+
 [jupyter]
 python_executable = ${buildout:bin-directory}/${:interpreter}
 

software/kvm/software-py3.cfg

 [buildout]
 extends =
-  ../../component/python3/buildout.cfg
   software.cfg
 
-python = python3
-
 # Ignore these for now
 common-parts -=
   rdiff-backup
+
+[python]
+part = python3

software/monitor/software.cfg

@@ -8,8 +8,6 @@ extends =
   ../../stack/slapos.cfg
   ../../component/python3/buildout.cfg
 
-python = python3
-
 parts =
   slapos-cookbook
   network-bench-cfg
@@ -19,6 +17,9 @@ parts =
   template-monitor
   monitor-collect-csv-dump
 
+[python]
+part = python3
+
 [template]
 recipe = slapos.recipe.template
 url = ${:_profile_base_location_}/${:filename}

software/neotest/buildout.hash.cfg

@@ -14,7 +14,7 @@
 # not need these here).
 [neotest-env.sh]
 filename = neotest-env.sh.in
-md5sum = 595eebbbcb56b6a8464d48833cfae57b
+md5sum = bd46e95f1cea62c3b0082fe8c0c9c90b
 
 [neotest]
 filename = neotest.in

software/neotest/neotest-env.sh.in

@@ -9,7 +9,7 @@ PATH="${ioping:location}/bin:$PATH"
 PATH="${lmbench:location}/bin:$PATH"
 PATH="${mariadb:location}/bin:$PATH"
 PATH="${mariadb:location}/scripts:$PATH"
-PATH="${python2.7:location}/bin:$PATH"
+PATH="${python:location}/bin:$PATH"
 
 # add all eggs and develop-eggs to py path
 #

software/nextcloud/software.cfg

@@ -2,9 +2,13 @@
 extends =
   buildout.hash.cfg
   ../../component/redis/buildout.cfg
-  ../../component/python3/buildout.cfg
   ../../stack/lamp/buildout.cfg
 
+[gcc]
+# For old version of glibmm.
+part = gcc-5.5
+max_version = 6
+
 [nc-download-base]
 recipe = hexagonit.recipe.download
 ignore-existing = true

software/powerdns/software.cfg

@@ -10,6 +10,11 @@ parts =
   slapos-cookbook
   eggs
 
+[gcc]
+# For old version of PowerDNS and Ragel.
+part = gcc-5.5
+max_version = 6
+
 [eggs]
 recipe = zc.recipe.egg
 eggs =

software/slapos-sr-testing/software-py3.cfg

 [buildout]
-
 extends =
-  ../../component/python3/buildout.cfg
   software.cfg
 
-python = python3
+[python]
+part = python3
 
 [eggs]
 eggs -=

software/slapos-testing/software-py3.cfg

 [buildout]
 extends =
-  ../../component/python3/buildout.cfg
   software.cfg
-python = python3
 
-[nghttp2]
-environment =
-  PATH=${autoconf:location}/bin:${automake:location}/bin:${libtool:location}/bin:${m4:location}/bin:${python3:location}/bin:%(PATH)s
+[python]
+part = python3
 
 [supervisor-repository]
 <= git-clone-repository

software/slaprunner/buildout.hash.cfg

@@ -18,7 +18,7 @@ md5sum = 8d6878ff1d2e75010c50a1a2b0c13b24
 
 [template-runner]
 filename = instance-runner.cfg
-md5sum = f342daca2e87f8fa44fd7b6a2a1c22f8
+md5sum = 7100c6678576c285322f1445029cd4f2
 
 [template-runner-import-script]
 filename = template/runner-import.sh.jinja2

software/slaprunner/instance-runner.cfg

@@ -692,7 +692,7 @@ hash-existing-files = $${buildout:directory}/software_release/buildout.cfg
 
 [shell-environment]
 shell = ${bash:location}/bin/bash
-path = ${nano:location}/bin:${vim:location}/bin:${screen:location}/bin:${tmux:location}/bin:${git:location}/bin:${curl:location}/bin:${python2.7:location}/bin:${tig:location}/bin:${zip:location}/bin:${mosh:location}/bin:${bash:location}/bin:${fish-shell:location}/bin:$${directory:bin}:/usr/bin:/bin/
+path = ${nano:location}/bin:${vim:location}/bin:${screen:location}/bin:${tmux:location}/bin:${git:location}/bin:${curl:location}/bin:${python:location}/bin:${tig:location}/bin:${zip:location}/bin:${mosh:location}/bin:${bash:location}/bin:${fish-shell:location}/bin:$${directory:bin}:/usr/bin:/bin/
 
 [prepare-software]
 recipe = slapos.cookbook:wrapper

software/slaprunner/software-py3.cfg

 [buildout]
 extends =
-  ../../component/python3/buildout.cfg
   software.cfg
 
-python = python3
-
 # Ignore these for now
 common-parts -=
   rdiff-backup
 
+[python]
+part = python3
+
 [python-with-eggs]
 eggs -=
 # futures is a backport of Py3's concurrent.futures module

software/slaprunner/software.cfg

@@ -18,7 +18,6 @@ extends =
   ../../component/mosh/buildout.cfg
   ../../component/rsync/buildout.cfg
   ../../component/pycurl/buildout.cfg
-  ../../component/python-2.7/buildout.cfg
   ../../component/screen/buildout.cfg
   ../../component/shellinabox/buildout.cfg
   ../../component/vim/buildout.cfg

software/theia/software.cfg

 [buildout]
 extends =
-   ../../component/python3/buildout.cfg
-   ../../component/python-2.7/buildout.cfg
    ../../component/nodejs/buildout.cfg
    ../../component/caddy/buildout.cfg
    ../../component/git/buildout.cfg
@@ -56,7 +54,7 @@ mode = 0644
 [theia]
 recipe = plone.recipe.command
 command = ${bash:location}/bin/bash -c "
-  export TMPDIR=${:location}/tmp PATH=${nodejs:location}/bin/:${python2.7:location}/bin/:$PATH &&
+  export TMPDIR=${:location}/tmp PATH=${nodejs:location}/bin:$PATH &&
   mkdir -p ${:location} && \
   mkdir -p \$TMPDIR && \
   mkdir -p ${:THEIA_DEFAULT_PLUGINS} && \

software/varnish/software.cfg

@@ -8,7 +8,6 @@ extends =
   ../../component/gzip/buildout.cfg
   ../../component/logrotate/buildout.cfg
   ../../component/pycurl/buildout.cfg
-  ../../component/python-2.7/buildout.cfg
   ../../component/stunnel/buildout.cfg
   ../../component/varnish/buildout.cfg
   ../../component/wget/buildout.cfg

software/wendelin/software-kerastensorflow.cfg

@@ -11,8 +11,8 @@ parts +=
 
 [eggs]
 eggs +=
-  ${tensorboard-build-install-egg:egg}
-  ${tensorflow-build-install-egg:egg}
+  ${tensorflow_tensorboard:egg}
+  ${tensorflow:egg}
   ${protobuf-python:egg}
   ${h5py:egg}
   ${pillow-python:egg}
@@ -22,8 +22,8 @@ eggs +=
   filelock
   nose
   ${chainer:egg}
-  ${pytorch-build-install-egg:egg}
-  ${python-cocoapi-build-install-egg:egg}
+  ${torch:egg}
+  ${pycocotools:egg}
   torchvision
 
 [cuda]

software/wendelin/software.cfg

@@ -30,17 +30,23 @@ eggs +=
   ${ipython:egg}
   
 [generic_testrunner_init]
-initialization = 
+recipe = slapos.recipe.build
+init =
+  import struct
+  gcc = self.buildout['gcc']
+  options['initialization'] %= (
+    gcc['prefix'] + '/lib%s/libstdc++.so' % (8 * struct.calcsize("P"))
+    ) if 'part' in gcc else ''
+initialization =
   # The 4 lines below will replace the process with another one, with the proper
   # LD_PRELOAD environment variable. This is necessary because LD_PRELOAD is only
   # taken into account when the process starts. Modifying it in runtime doesn't
   # work.
-  import struct, os
-  arch = 8 * struct.calcsize("P")
-  rerun = not os.getenv('LD_PRELOAD')
-  if rerun: os.environ['LD_PRELOAD'] = '''${gcc:location}/lib%s/libstdc++.so''' % arch
-  if rerun: os.execve(os.path.realpath(__file__), sys.argv, os.environ)
-  
+  import os
+  if not os.getenv('LD_PRELOAD'):
+    os.environ['LD_PRELOAD'] = %r
+    os.execve(os.path.realpath(__file__), sys.argv, os.environ)
+
 [test_suite_runner]
 # we need to override the test suite runner to add our custom libstdc++ dynamic
 # library to the path

stack/cloudooo.cfg

@@ -23,7 +23,6 @@ extends =
   ../component/mesa/buildout.cfg
   ../component/onlyoffice-core/buildout.cfg
   ../component/poppler/buildout.cfg
-  ../component/python-2.7/buildout.cfg
   ../component/rdiff-backup/buildout.cfg
   ../component/xorg/buildout.cfg
 

stack/erp5/buildout.cfg

@@ -6,7 +6,6 @@ extends =
   zope-versions.cfg
   buildout.hash.cfg
   ../../component/fonts/buildout.cfg
-  ../../component/gcc/buildout.cfg
   ../../component/git/buildout.cfg
   ../../component/graphviz/buildout.cfg
   ../../component/gzip/buildout.cfg
@@ -94,9 +93,10 @@ parts +=
 # jupyter
   jupyter-notebook-initialized-scripts
 
-# override python2.7 to add SlapOS libstdc++ in RPATH.
-[python2.7]
-extra-ldflags = -Wl,-rpath=${gcc:location}/lib -Wl,-rpath=${gcc:location}/lib64
+[gcc]
+# KumoFS is known not to build with gcc>6.
+# It may work with slightly more recent but not tested.
+part = gcc-5.5
 
 # override instance-jupyter-notebook not to render into default template.cfg
 [instance-jupyter-notebook]

stack/slapos.cfg

@@ -2,8 +2,6 @@
 # Software Releases or Stacks can safely extend this stack.
 
 [buildout]
-python = python2.7
-
 # Developers need to add explicitely this part in their software profile
 # parts = slapos-cookbook
 # Note that if you want a develop version of slapos-cookbook from a git
@@ -22,9 +20,9 @@ allow-picked-versions = false
 
 # Use shacache and lxml
 extends =
+  ../component/defaults.cfg
   ../component/git/buildout.cfg
   ../component/lxml-python/buildout.cfg
-  ../component/python-2.7/buildout.cfg
   ../component/python-cffi/buildout.cfg
   ../component/python-cliff/buildout.cfg
   ../component/python-cachecontrol/buildout.cfg
@@ -120,7 +118,7 @@ eggs =
 [versions]
 setuptools = 44.0.0
 # Use SlapOS patched zc.buildout
-zc.buildout = 2.7.1+slapos003
+zc.buildout = 2.7.1+slapos004
 # Use SlapOS patched zc.recipe.egg (zc.recipe.egg 2.x is for Buildout 2)
 zc.recipe.egg = 2.0.3+slapos003
 # Use own version of h.r.download to be able to open .xz and .lz archives
@@ -160,9 +158,9 @@ slapos.core = 1.5.12
 slapos.extension.strip = 0.4
 slapos.extension.shared = 1.0
 slapos.libnetworkcache = 0.20
-slapos.rebootstrap = 4.4
-slapos.recipe.build = 0.44
-slapos.recipe.cmmi = 0.13
+slapos.rebootstrap = 4.5
+slapos.recipe.build = 0.45
+slapos.recipe.cmmi = 0.15
 slapos.toolbox = 0.109
 stevedore = 1.21.0
 subprocess32 = 3.5.3