diff -up gtk-sharp-2.10.3/parser/Makefile.am.old gtk-sharp-2.10.3/parser/Makefile.am
--- gtk-sharp-2.10.3/parser/Makefile.am.old	2008-02-28 00:41:27.000000000 +0100
+++ gtk-sharp-2.10.3/parser/Makefile.am	2008-02-28 00:41:49.000000000 +0100
@@ -1,4 +1,4 @@
-assemblydir = $(prefix)/lib/gtk-sharp-2.0
+assemblydir = $(libdir)/gtk-sharp-2.0
 pkgconfigdir = $(libdir)/pkgconfig
 assembly_DATA = gapi-fixup.exe gapi-parser.exe
 pkgconfig_DATA = gapi-2.0.pc
diff -up gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in.old gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in
--- gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in.old	2008-02-28 00:42:18.000000000 +0100
+++ gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in	2008-02-28 00:43:19.000000000 +0100
@@ -1,6 +1,6 @@
-prefix=${pcfiledir}/../..
+prefix=@prefix@
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=@libdir@
 gapidir=${prefix}/share/gapi-2.0
 
 
diff -up gtk-sharp-2.10.3/generator/Makefile.am.old gtk-sharp-2.10.3/generator/Makefile.am
--- gtk-sharp-2.10.3/generator/Makefile.am.old	2008-02-28 00:43:38.000000000 +0100
+++ gtk-sharp-2.10.3/generator/Makefile.am	2008-02-28 00:44:18.000000000 +0100
@@ -1,4 +1,4 @@
-assemblydir = $(prefix)/lib/gtk-sharp-2.0
+assemblydir = $(libdir)/gtk-sharp-2.0
 assembly_DATA = gapi_codegen.exe
 bin_SCRIPTS = gapi2-codegen
 CLEANFILES = gapi_codegen.exe