component/ghostscript: version up 9.54.0

This version includes an OCR engine based on tesseract.

component/ghostscript/buildout.cfg

@@ -2,17 +2,21 @@
 extends =
   ../fontconfig/buildout.cfg
   ../freetype/buildout.cfg
+  ../libjpeg/buildout.cfg
   ../libtiff/buildout.cfg
   ../libxml2/buildout.cfg
   ../pkgconfig/buildout.cfg
+  ../tesseract/buildout.cfg
   ../xz-utils/buildout.cfg
 
 parts = ghostscript
 
-[ghostscript-common]
+[ghostscript]
 recipe = slapos.recipe.cmmi
 shared = true
-pkg_config_depends = ${libtiff:location}/lib/pkgconfig:${fontconfig:location}/lib/pkgconfig:${fontconfig:pkg_config_depends}
+url = https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs9540/ghostscript-9.54.0.tar.gz
+md5sum = 5d571792a8eb826c9f618fb69918d9fc
+pkg_config_depends = ${libtiff:location}/lib/pkgconfig:${libjpeg:location}/lib/pkgconfig:${fontconfig:location}/lib/pkgconfig:${fontconfig:pkg_config_depends}
 configure-options =
   --disable-cups
   --disable-threadsafe
@@ -20,18 +24,18 @@ configure-options =
   --without-libidn
   --without-x
   --with-drivers=FILES
-# it seems that parallel build sometimes fails for ghostscript.
-make-options = -j1
+  --with-tessdata=${:tessdata-location}
 environment =
   PATH=${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
-  LDFLAGS=-Wl,-rpath=${fontconfig:location}/lib -Wl,-rpath=${freetype:location}/lib -Wl,-rpath=${libtiff:location}/lib
+  CFLAGS=-I${libjpeg:location}/include
+  LDFLAGS=-Wl,-rpath=${fontconfig:location}/lib -Wl,-rpath=${freetype:location}/lib -Wl,-rpath=${libtiff:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib
   LD_LIBRARY_PATH=${fontconfig:location}/lib:${freetype:location}/lib:${libtiff:location}/lib:${libxml2:location}/lib
 
-[ghostscript]
-<= ghostscript-9
+# configure gives priority to local jpeg library and refuse mixing local libjpeg with "system" libtiff.
+# We remove this local jpeg library source folder so that configure picks up the slapos versions of these libraries.
+pre-configure = rm -r jpeg
 
-[ghostscript-9]
-<= ghostscript-common
-url = https://github.com/ArtifexSoftware/ghostpdl-downloads/releases/download/gs950/ghostscript-9.50.tar.xz
-md5sum = 6cea6bae4a7cdfac6ccb09f07f0caf8c
+post-make-hook = ${tesseract-download-traineddata:post-make-hook}
+tessdata-location = @@LOCATION@@/share/tessdata/
+tessdata-urls = ${tesseract-download-traineddata:urls}

component/tesseract/buildout.hash.cfg

 [download-tessdata.py]
 filename = download-tessdata.py
-md5sum = 02960cbbe84f484a532ee4e279b87150
+md5sum = 2d283a6d8662d6bb8c9de7b26162b702

component/tesseract/download-tessdata.py

@@ -9,6 +9,7 @@ import os
 
 
 def post_make_hook(options, buildout, env):
+  if not os.path.exists(options['tessdata-location']):
     os.makedirs(options['tessdata-location'])
 
   download = zc.buildout.download.Download(