libxul.so fails to link due to a number of 'relocation truncation' failures on PPC. Attached are the logs.
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OK, following a conversation with some guys in #gentoo-ppc, it appears that using -ggdb3 breaks the build. It's actually caused by binutils, both binutils-2.20-r1 and binutils-2.21 breaks the xulrunner linking process if -ggdb3 is used.
All other -g* flags works perfectly well. I would suggest that a small testcase be distilled from xulrunner to reproduce the problem and a bug report be raised with the binutils developers so we can get this fixed.
Please do not CC developers when you cannot assign bugs.
net-libs/xulrunner was punted from tree wrt bug 403415 so closing this bug too.