shared cmmi TODO: ncurses built twice ( unfinished patches )

This patch is a mess. I started reorganising, splitting in two parts (
which seemed to make sense as we install twice - install in two
different directories for each compile options ), but then stopped and
left this as unfinished.

component/ncurses/buildout.cfg

@@ -4,15 +4,21 @@ extends =
 parts =
   ncurses
 
-[ncurses]
+# We install ncurses twice, one without widec, one with widec
+# XXX cmmi-shared: this has to be reviewed ! it's not actually installed twice
+# and installation is not complete.
+[ncurses-base]
+prefix = @@LOCATION@@
 recipe = slapos.recipe.cmmi
+shared = true
 url = ftp://ftp.gnu.org/pub/gnu/ncurses/ncurses-6.0.tar.gz
 md5sum = ee13d052e1ead260d7c28071f46eefb1
 patch-options = -p1
+;patch-binary = ${patch:location}/bin/patch
 patches =
   ${:_profile_base_location_}/ncurses-5.9-gcc-5.patch#57f4cd0cc0c0a42a5ddb2167f9546d72
 configure-options =
-  --prefix=${buildout:parts-directory}/${:_buildout_section_name_}
+  --prefix=${:prefix}
   --with-shared
   --without-ada
   --without-manpages
@@ -21,12 +27,21 @@ configure-options =
   --without-debug
   --without-gpm
   --enable-rpath
-# tricky way to rerun with --enable-widec
-make-targets =
-  install && (for i in curses unctrl eti form menu panel term; do ln -sf ncurses/$i.h ${buildout:parts-directory}/${:_buildout_section_name_}/include/$i.h; done; ln -sf libncurses.so ${buildout:parts-directory}/${:_buildout_section_name_}/lib/libcurses.so) && ./configure ${:configure-options} --enable-widec && make ${:make-options} && make ${:make-options} install
 # pass dummy LDCONFIG to skip needless calling of ldconfig by non-root user
 environment =
   LDCONFIG=/bin/echo
   PATH=${patch:location}/bin:%(PATH)s
 make-options =
   -j1
+
+[ncurses-bootstrap]
+<= ncurses-base
+
+[ncurses-widec]
+<= ncurses-base
+# tricky way to rerun with --enable-widec
+make-targets =
+  install && (for i in curses unctrl eti form menu panel term; do ln -sf ncurses/$i.h @@LOCATION@@/include/$i.h; done; ln -sf libncurses.so @@LOCATION@@/lib/libcurses.so) && ./configure ${:configure-options} --enable-widec && make ${:make-options} && make ${:make-options} install
+
+[ncurses]
+<= ncurses-widec