use our own gcc to buid libtiff and tesseract (thanks Kazuhiko)

This solve compilation problems on Debian 6.0.1

component/libtiff/buildout.cfg

@@ -3,6 +3,7 @@ extends =
   ../libjpeg/buildout.cfg
   ../jbigkit/buildout.cfg
   ../zlib/buildout.cfg
+  ../gcc/buildout.cfg
 
 parts =
   libtiff
@@ -17,5 +18,7 @@ configure-options =
   --disable-static
   --without-x
 environment =
+  PATH=${gcc-java:location}/bin:%(PATH)s
+  LD_LIBRARY_PATH=${gcc-java:location}/lib:${gcc-java:location}/lib64
   CPPFLAGS=-I${libjpeg:location}/include -I${jbigkit:location}/include -I${zlib:location}/include
-  LDFLAGS=-L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib
+  LDFLAGS=-L${gcc-java:location}/lib -Wl,-rpath=${gcc-java:location}/lib -L${gcc-java:location}/lib64 -Wl,-rpath=${gcc-java:location}/lib64 -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib

component/tesseract/buildout.cfg

@@ -5,6 +5,7 @@ extends =
   ../libpng/buildout.cfg
   ../libtiff/buildout.cfg
   ../zlib/buildout.cfg
+  ../gcc/buildout.cfg
 
 parts =
   tesseract-eng-traineddata-unzip
@@ -27,8 +28,10 @@ configure-options =
   --disable-static
   --datarootdir=${tesseract-share:location}
 environment =
+  PATH=${gcc-java:location}/bin:%(PATH)s
+  LD_LIBRARY_PATH=${gcc-java:location}/lib:${gcc-java:location}/lib64
   CPPFLAGS=-I${zlib:location}/include -I${jbigkit:location}/include -I${libjpeg:location}/include -I${libtiff:location}/include -I${libpng:location}/include
-  LDFLAGS =-L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${libtiff:location}/lib -Wl,-rpath=${libtiff:location}/lib -L${libpng:location}/lib -Wl,-rpath=${libpng:location}/lib
+  LDFLAGS =-L${gcc-java:location}/lib -Wl,-rpath=${gcc-java:location}/lib -L${gcc-java:location}/lib64 -Wl,-rpath=${gcc-java:location}/lib64 -L${zlib:location}/lib -Wl,-rpath=${zlib:location}/lib -L${jbigkit:location}/lib -Wl,-rpath=${jbigkit:location}/lib -L${libjpeg:location}/lib -Wl,-rpath=${libjpeg:location}/lib -L${libtiff:location}/lib -Wl,-rpath=${libtiff:location}/lib -L${libpng:location}/lib -Wl,-rpath=${libpng:location}/lib
 
 [tesseract-eng-traineddata]
 recipe = hexagonit.recipe.download