diff -Naur libffi-3.0.10/include/Makefile.am libffi-3.0.10.patch/include/Makefile.am
--- libffi-3.0.10/include/Makefile.am	2011-08-22 20:38:12.000000000 +0200
+++ libffi-3.0.10.patch/include/Makefile.am	2011-11-04 09:26:38.587669344 +0100
@@ -5,5 +5,5 @@
 DISTCLEANFILES=ffitarget.h
 EXTRA_DIST=ffi.h.in ffi_common.h
 
-includesdir = $(libdir)/@PACKAGE_NAME@-@PACKAGE_VERSION@/include
+includesdir = $(includedir)/@PACKAGE_NAME@
 nodist_includes_HEADERS = ffi.h ffitarget.h
diff -Naur libffi-3.0.10/libffi.pc.in libffi-3.0.10.patch/libffi.pc.in
--- libffi-3.0.10/libffi.pc.in	2011-08-22 20:38:12.000000000 +0200
+++ libffi-3.0.10.patch/libffi.pc.in	2011-11-04 09:25:20.218682315 +0100
@@ -1,7 +1,7 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
-includedir=${libdir}/@PACKAGE_NAME@-@PACKAGE_VERSION@/include
+includedir=@includedir@/@PACKAGE_NAME@
 
 Name: @PACKAGE_NAME@
 Description: Library supporting Foreign Function Interfaces
