Index: gems.eclass
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/gems.eclass,v
retrieving revision 1.16
diff -u -r1.16 gems.eclass
--- gems.eclass	31 Jan 2007 13:46:07 -0000	1.16
+++ gems.eclass	31 Jan 2007 15:02:06 -0000
@@ -37,12 +37,13 @@
 }
 
 gems_src_unpack() {
-	#ruby_patch_mkmf
 	true
 }
 
 gems_src_install() {
 	gems_location
+	# why placing this function in gems_src_unpack doesn't work?
+	ruby_patch_rbconfig 
 
 	if [ -z "${MY_P}" ]; then
 		GEM_SRC=${DISTDIR}/${P}
Index: ruby-gnome2.eclass
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/ruby-gnome2.eclass,v
retrieving revision 1.11
diff -u -r1.11 ruby-gnome2.eclass
--- ruby-gnome2.eclass	26 Jan 2007 15:53:18 -0000	1.11
+++ ruby-gnome2.eclass	31 Jan 2007 15:02:06 -0000
@@ -11,6 +11,8 @@
 # Variables:
 # PATCHES	Space delimited list of patch files.
 
+inherit ruby
+
 EXPORT_FUNCTIONS src_compile src_install src_unpack
 
 IUSE=""
@@ -31,18 +33,6 @@
 RDEPEND="virtual/ruby"
 
 ruby-gnome2_src_unpack() {
-	if [ ! -x /bin/install -a -x /usr/bin/install ]; then
-		cat <<END >${T}/mkmf.rb
-require 'mkmf'
-
-STDERR.puts 'patching mkmf'
-CONFIG['INSTALL'] = '/usr/bin/install'
-END
-		# save it because rubygems needs it (for unsetting RUBYOPT)
-		export GENTOO_RUBYOPT="-r${T}/mkmf.rb"
-		export RUBYOPT="${RUBYOPT} ${GENTOO_RUBYOPT}"
-	fi
-
 	unpack ${A}
 	cd ${S}
 	# apply bulk patches
@@ -54,6 +44,7 @@
 }
 
 ruby-gnome2_src_compile() {
+	ruby_patch_rbconfig
 	ruby extconf.rb || die "extconf.rb failed"
 	emake CC=${CC:-gcc} CXX=${CXX:-g++} || die "emake failed"
 }
Index: ruby.eclass
===================================================================
RCS file: /var/cvsroot/gentoo-x86/eclass/ruby.eclass,v
retrieving revision 1.62
diff -u -r1.62 ruby.eclass
--- ruby.eclass	31 Jan 2007 13:46:07 -0000	1.62
+++ ruby.eclass	31 Jan 2007 15:02:07 -0000
@@ -53,25 +53,25 @@
 
 [[ -z "${RUBY}" ]] && export RUBY=/usr/bin/ruby
 
-ruby_patch_mkmf() {
-
+ruby_patch_rbconfig() {
+	local rbconfig
 	if [ ! -x /bin/install -a -x /usr/bin/install ]; then
-		einfo "Patching mkmf"
-		cat <<END >${T}/mkmf.rb
-require 'mkmf'
-
-STDERR.puts 'Modified mkmf is used'
-CONFIG['INSTALL'] = '/usr/bin/install'
-END
-		# save it because rubygems needs it (for unsetting RUBYOPT)
-		export GENTOO_RUBYOPT="-r${T}/mkmf.rb"
-		export RUBYOPT="${RUBYOPT} ${GENTOO_RUBYOPT}"
+		einfo "Shadowing rbconfig.rb"
+		mkdir "${T}/ruby"
+		rbconfig=$(ruby -r rbconfig -e 'print Config::CONFIG["archdir"]')/rbconfig.rb
+		[ -f "${rbconfig}" ] || die "File ${rbconfig} not found. Please report"
+		sed 's,/bin/install,/usr/bin/install,g' "$rbconfig" > "${T}/ruby/rbconfig.rb"
+		export GENTOO_RUBYLIB="${T}/ruby"
+		if [ -n "${RUBYLIB}" ]; then
+			export RUBYLIB="${GENTOO_RUBYLIB}:${RUBYLIB}"
+		else
+			export RUBYLIB="${GENTOO_RUBYLIB}"
+		fi
 	fi
 
 }
 
 ruby_src_unpack() {
-	#ruby_patch_mkmf
 	unpack ${A}
 	cd ${S}
 	# apply bulk patches
@@ -83,6 +83,7 @@
 }
 
 ruby_econf() {
+	ruby_patch_rbconfig
 
 	RUBY_ECONF="${RUBY_ECONF} ${EXTRA_ECONF}"
 	if [ -f configure ] ; then