component/ghostscript: backport a bugfix patch

Fixes decryption of some password protected PDFs

component/ghostscript/buildout.cfg

@@ -6,6 +6,7 @@ extends =
   ../libjpeg/buildout.cfg
   ../libtiff/buildout.cfg
   ../libxml2/buildout.cfg
+  ../patch/buildout.cfg
   ../pkgconfig/buildout.cfg
   ../tesseract/buildout.cfg
   ../xz-utils/buildout.cfg
@@ -27,12 +28,14 @@ configure-options =
   --with-drivers=FILES
   --with-tessdata=$(python -c 'print("""${:tessdata-location}""".replace("//", "/"))')
 environment =
-  PATH=${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
+  PATH=${patch:location}/bin:${pkgconfig:location}/bin:${xz-utils:location}/bin:%(PATH)s
   PKG_CONFIG_PATH=${:pkg_config_depends}
   CFLAGS=-I${libjpeg:location}/include
   LDFLAGS=-Wl,-rpath=${libidn:location}/lib -Wl,-rpath=${fontconfig:location}/lib -Wl,-rpath=${freetype:location}/lib -Wl,-rpath=${libtiff:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib
   LD_LIBRARY_PATH=${libidn:location}/lib:${fontconfig:location}/lib:${freetype:location}/lib:${libtiff:location}/lib:${libxml2:location}/lib
-
+patches =
+  https://github.com/ArtifexSoftware/ghostpdl/commit/f8a4030a319705b9402b386a0ada8dd00b8181d3.patch#7b6dcda1cf19e639994921713fb41277
+patch-options = -p1
 # 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