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Bug #9665

Updated by nobu (Nobuyoshi Nakada) over 5 years ago

Ruby 2.1.1 (and possibly a few older versions) fails to build on PowerPC Darwin using Apple-provided GCCs. When linking miniruby, the build fails due to:

~~~ <pre>
/usr/libexec/gcc/powerpc-apple-darwin8/4.2.1/ld: Undefined symbols:
___builtin_unreachable
~~~ </pre>

This occurs with Apple GCC 4.0 and 4.2, on Mac OS X 10.4 and 10.5 PowerPC. The issue does not occur using newer FSF GCCs (for instance, 4.8.2) on the same OS X versions. While I'm unable to test on 10.5 Intel, I can confirm that newer Intel OS X versions work fine using Apple GCC 4.2.

Verbose build logs, from Mac OS X 10.4 with Apple GCC 4.2, are attached.

While I suspect this was possibly introduced by r34784, as removing the check from configure allows the build to succeed, that revision is 2 years old and I only noticed these build failures beginning relatively recently.

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