Valgrind doesn't support glibc-2.7. It fails on the configure step saying it needs glibc-2.4 or 2.6 Reproducible: Always Steps to Reproduce: 1. Upgrade to glibc-2.7 2. Emerge valgrind Redhat has a patch for glibc-2.7; it can be found at http://developer.momonga-linux.org/viewvc/trunk/pkgs/valgrind/valgrind-3.2.3-glibc2_7.patch?view=log
Created attachment 135995 [details, diff] Patch to make dev-util/valgrind fails to compile against glibc-2.7 against glibc-2.7 With this patch valgrind compiles against glibc-2.7. Simply use it in a portage overlay with the following ebuild.
Created attachment 135997 [details] Ebuild which includes valgrind-3.2.3-glibc-2.7.patch
i tested the patch on ~amd64 platform and it works.
Fixed in portage. Thanks for the report and the patch!