tweak to workaround old libjpeg on RHEL-6

libreoffice-rhel6glib.patch

@@ -39,3 +39,47 @@ index 936aac2..7d26eb4 100644
  		ucb/source/ucp/gio/ucpgio \
  	) \
  	$(if $(ENABLE_GNOMEVFS), \
+diff --git a/configure.ac b/configure.ac
+index 059188f..23503da 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -7113,17 +7113,6 @@ if test "$with_system_jpeg" = "yes"; then
+         [AC_MSG_ERROR(jpeg.h not found. install libjpeg)], [])
+     AC_CHECK_LIB(jpeg, jpeg_resync_to_restart, [ JPEG3RDLIB=-ljpeg ],
+     [AC_MSG_CHECKING(jpeg library not found or fuctional)], [])
+-    AC_MSG_CHECKING([[libjpeg supports JERR_BAD_CROP_SPEC (jpeg-7 API)]])
+-	AC_COMPILE_IFELSE([ AC_LANG_SOURCE(
+-			  [[
+-#include <stdio.h>
+-#include <jerror.h>
+-int main(int c, char**v) { printf("%d\n", JERR_BAD_CROP_SPEC); return 0; }
+-			  ]]) ],
+-			  [AC_MSG_RESULT(yes)],
+-		          [AC_MSG_RESULT(no)
+-                           AC_MSG_ERROR(jpeg library version >= 7 or jpeg-turbo version >= 1.1 required)
+-                          ])
+     libo_MINGW_CHECK_DLL([libjpeg])
+ else
+     AC_MSG_RESULT([internal])
+diff --git a/vcl/source/filter/jpeg/transupp.c b/vcl/source/filter/jpeg/transupp.c
+index 33da623..4cae59e 100644
+--- a/vcl/source/filter/jpeg/transupp.c
++++ b/vcl/source/filter/jpeg/transupp.c
+@@ -1006,7 +1006,7 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
+       info->crop_yoffset = 0;   /* default to +0 */
+     if (info->crop_xoffset >= info->output_width ||
+     info->crop_yoffset >= info->output_height)
+-      ERREXIT(srcinfo, JERR_BAD_CROP_SPEC);
++      ERREXIT(srcinfo, JERR_CONVERSION_NOTIMPL);
+     if (info->crop_width_set == JCROP_UNSET)
+       info->crop_width = info->output_width - info->crop_xoffset;
+     if (info->crop_height_set == JCROP_UNSET)
+@@ -1016,7 +1016,7 @@ jtransform_request_workspace (j_decompress_ptr srcinfo,
+     info->crop_height <= 0 || info->crop_height > info->output_height ||
+     info->crop_xoffset > info->output_width - info->crop_width ||
+     info->crop_yoffset > info->output_height - info->crop_height)
+-      ERREXIT(srcinfo, JERR_BAD_CROP_SPEC);
++      ERREXIT(srcinfo, JERR_CONVERSION_NOTIMPL);
+     /* Convert negative crop offsets into regular offsets */
+     if (info->crop_xoffset_set == JCROP_NEG)
+       xoffset = info->output_width - info->crop_width - info->crop_xoffset;