Patch for building on gcc 4.7+

component/tesseract/buildout.cfg

@@ -19,10 +19,22 @@ command = mkdir -p ${:location} && mkdir -p ${:location}/tessdata
 update-command = ${:command}
 stop-on-error = yes
 
+
+[tesseract-gcc-4.7-build-patch]
+recipe = hexagonit.recipe.download
+url = ${:_profile_base_location_}/${:filename}
+download-only = true
+filename = tesseract-3.00-gcc-4.7-build.patch
+md5sum = ca80db3ec489c547b03f3ee48879c1b1
+
 [tesseract]
 recipe = hexagonit.recipe.cmmi
 url = http://tesseract-ocr.googlecode.com/files/tesseract-3.00.tar.gz
 md5sum = cc812a261088ea0c3d2da735be35d09f
+patch-options =
+  -p1
+patches =
+  ${tesseract-gcc-4.7-build-patch:location}/${tesseract-gcc-4.7-build-patch:filename}
 depends =
   ${libtiff:version}
 configure-options =

component/tesseract/tesseract-3.00-gcc-4.7-build.patch

+--- tesseract-3.00/viewer/svutil.cpp.old	2012-04-11 09:34:26.168608940 +0200
++++ tesseract-3.00/viewer/svutil.cpp	2012-04-11 09:34:46.108565692 +0200
+@@ -21,6 +21,7 @@
+ // thread/process creation & synchronization and network connection.
+ 
+ #include <stdio.h>
++#include <unistd.h>
+ #ifdef WIN32
+ #include <windows.h>
+ #include <winsock.h>