diff -up gtk-sharp-2.10.3/generator/Makefile.am.libdir gtk-sharp-2.10.3/generator/Makefile.am
--- gtk-sharp-2.10.3/generator/Makefile.am.libdir	2008-01-23 12:56:40.000000000 -0500
+++ gtk-sharp-2.10.3/generator/Makefile.am	2008-04-23 10:01:22.000000000 -0400
@@ -1,4 +1,4 @@
-assemblydir = $(prefix)/lib/gtk-sharp-2.0
+assemblydir = $(libdir)/gtk-sharp-2.0
 assembly_DATA = gapi_codegen.exe
 bin_SCRIPTS = gapi2-codegen
 CLEANFILES = gapi_codegen.exe
diff -up gtk-sharp-2.10.3/glade/glade-sharp-2.0.pc.in.libdir gtk-sharp-2.10.3/glade/glade-sharp-2.0.pc.in
--- gtk-sharp-2.10.3/glade/glade-sharp-2.0.pc.in.libdir	2008-04-23 10:02:23.000000000 -0400
+++ gtk-sharp-2.10.3/glade/glade-sharp-2.0.pc.in	2008-04-23 10:02:33.000000000 -0400
@@ -1,6 +1,6 @@
 prefix=${pcfiledir}/../..
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=@libdir@
 gapidir=${prefix}/share/gapi-2.0
 
 
diff -up gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in.libdir gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in
--- gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in.libdir	2008-01-23 12:57:41.000000000 -0500
+++ gtk-sharp-2.10.3/glib/glib-sharp-2.0.pc.in	2008-04-23 10:01:22.000000000 -0400
@@ -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/gtkdotnet/gtk-dotnet-2.0.pc.in.libdir gtk-sharp-2.10.3/gtkdotnet/gtk-dotnet-2.0.pc.in
--- gtk-sharp-2.10.3/gtkdotnet/gtk-dotnet-2.0.pc.in.libdir	2008-04-23 10:03:24.000000000 -0400
+++ gtk-sharp-2.10.3/gtkdotnet/gtk-dotnet-2.0.pc.in	2008-04-23 10:03:33.000000000 -0400
@@ -1,6 +1,6 @@
 prefix=${pcfiledir}/../..
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=@libdir@
 
 
 Name: Gtk.DotNet
diff -up gtk-sharp-2.10.3/gtk/gtk-sharp-2.0.pc.in.libdir gtk-sharp-2.10.3/gtk/gtk-sharp-2.0.pc.in
--- gtk-sharp-2.10.3/gtk/gtk-sharp-2.0.pc.in.libdir	2008-04-23 10:03:48.000000000 -0400
+++ gtk-sharp-2.10.3/gtk/gtk-sharp-2.0.pc.in	2008-04-23 10:03:59.000000000 -0400
@@ -1,6 +1,6 @@
 prefix=${pcfiledir}/../..
 exec_prefix=${prefix}
-libdir=${exec_prefix}/lib
+libdir=@libdir@
 gapidir=${prefix}/share/gapi-2.0
 
 
diff -up gtk-sharp-2.10.3/parser/Makefile.am.libdir gtk-sharp-2.10.3/parser/Makefile.am
--- gtk-sharp-2.10.3/parser/Makefile.am.libdir	2008-01-23 12:56:43.000000000 -0500
+++ gtk-sharp-2.10.3/parser/Makefile.am	2008-04-23 10:01:22.000000000 -0400
@@ -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