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On 14 Aug 2015 11:59, Andreas Schwab wrote: > Mike Frysinger <vapier@gentoo.org> writes: > > /usr/local/src/gnu/glibc/stdio-common/isoc99_scanf.c:27: undefined reference to `_Unwind_SjLj_Register' > > I don't think we support sjlj exceptions. > > > any idea ? if i add -lgcc_s to the link line, it passes. config.log attached. > > Make sure the compiler properly supports dwarf2 exceptions. i'm using the default configuration options here generally speaking. i'm def not passing --enable-sjlj-exceptions down (we don't for any arch in Gentoo). CONFIG_SJLJ_EXCEPTIONS is #undef in the config.h. but the C++ code has _GLIBCXX_SJLJ_EXCEPTIONS defined. i rebuilt gcc with an explicit --disable-sjlj-exceptions to be sure, but it's still failing with sjlj link errors. i'll keep poking the gcc source to see why it's dumb. thanks for the pointers. -mike
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