Date: Sat, 10 May 2014 21:05:03 -0400 From: Rich Felker <dalias@...c.org> To: musl@...ts.openwall.com Subject: Broken GCC versions: 4.8.2 and 4.9.0 It's come to my attention that GCC versions 4.8.2 and 4.9.0 are performing invalid optimizations that result in a broken musl libc.a/libc.so. It's not clear yet whether there's a good workaround, or whether we should attempt to work around the problem, so for now, please just be aware that these versions of GCC cannot be used to compile musl. Using them to compile programs against musl should not be a problem. I'll post more details later. The short version is that it's making incorrect assumptions about the reachability of global variables that have a local weak definition and an external strong one. Rich
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