--- scipy-0.13.1-r2.ebuild.orig	2013-12-04 17:18:31.709710828 +0100
+++ scipy-0.13.1-r2.ebuild.orig	2013-12-04 17:24:16.318156800 +0100
@@ -61,7 +61,7 @@ 
 pc_libs() {
 	$(tc-getPKG_CONFIG) --libs-only-l $@ | \
 		sed -e 's/[ ]-l*\(pthread\|m\)[ ]*//g' \
-		-e 's/^-l//' -e 's/[ ]*-l/,/g' -e 's/[ ]*$//'
+               -e 's/^-l//' -e 's/[ ]*-l/\n/g' -e 's/[ ]*$//' | sort | uniq | tr '\n' ','
 }
 
 python_prepare_all() {