diff -ur a/ipsc-0.4.3.2-r1.ebuild b/ipsc-0.4.3.2-r1.ebuild
--- a/ipsc-0.4.3.2-r1.ebuild	2008-10-11 18:07:47.000000000 -0500
+++ b/ipsc-0.4.3.2-r1.ebuild	2009-02-13 00:07:32.000000000 -0600
@@ -16,8 +16,13 @@
 src_unpack() {
 	unpack ${A}
 	cd "${S}"
-	sed -i -e "s:^CC = gcc:CC = $(tc-getCC):" src/Makefile || die "Unable to override compiler selection"
-	sed -i -e "s:^CFLAGS = .*::" src/Makefile || die "Unable to unset upstream CFLAGS"
+	sed -i \
+		-e "s:^CC = gcc:CC = $(tc-getCC):" \
+		-e "/^CFLAGS = .*/d" \
+		-e "s/^LIBS = /LDLIBS = /" \
+		-e '/$(CC).*\\$/,+1d' \
+		-e '/$(CC)/d' \
+		src/Makefile || die "Unable to sed upstream Makefile"
 }
 
 src_compile() {