diff -ur gtk-sharp-2.12.6/configure.in gtk-sharp-2.12.6.new/configure.in

--- gtk-sharp-2.12.6/configure.in	2008-11-05 22:54:52 +0300

+++ gtk-sharp-2.12.6.new/configure.in	2008-11-27 00:45:21 +0300

@@ -202,6 +202,7 @@

 fi

 AC_SUBST(MDASSEMBLER)

 AC_SUBST(MONODOCER)

+AC_SUBST(doc_sources_dir)

 AM_CONDITIONAL(ENABLE_MONO_CAIRO, test "x$enable_mono_cairo" = "xyes")

 AM_CONDITIONAL(ENABLE_GLADE, test "x$enable_glade" = "xyes")

diff -ur gtk-sharp-2.12.6/doc/Makefile.am gtk-sharp-2.12.6.new/doc/Makefile.am

--- gtk-sharp-2.12.6/doc/Makefile.am	2008-08-27 19:35:31 +0400

+++ gtk-sharp-2.12.6.new/doc/Makefile.am	2008-11-27 00:45:56 +0300

@@ -20,7 +20,7 @@

 UPDATER = $(MONODOCER) -path:en -pretty $(UPDATE_ASSEMBLIES)

 if ENABLE_MONODOC

-SOURCESDIR=$(prefix)/lib/monodoc/sources

+SOURCESDIR=$(doc_sources_dir)

 TARGETS=gtk-sharp-docs.zip gtk-sharp-docs.tree gtk-sharp-docs.source

 else

 SOURCESDIR=$(datadir)