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| author | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2017-08-11 14:29:06 -0300 |
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| committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2017-08-18 12:18:36 -0300 |
| commit | 47a67213a9f51c5f8816d240500b10db605d8b77 (patch) | |
| tree | a00a1a49fd40e25061b9c02246caf8f80e32f6bf /misc | |
| parent | c647fb885cb678471f6b6a66f394b4ca5515a016 (diff) | |
| download | glibc-47a67213a9f51c5f8816d240500b10db605d8b77.tar.gz glibc-47a67213a9f51c5f8816d240500b10db605d8b77.tar.xz glibc-47a67213a9f51c5f8816d240500b10db605d8b77.zip | |
Do not use __builtin_types_compatible_p in C++ mode (bug 21930)
The logic to define isinf for float128 depends on the availability of __builtin_types_compatible_p, which is only available in C mode, however, the conditionals do not check for C or C++ mode. This lead to an error in libstdc++ configure, as reported by bug 21930. This patch adds a conditional for C mode in the definition of isinf for float128. No definition is provided in C++ mode, since libstdc++ headers undefine isinf. Tested for powerpc64le (glibc test suite and libstdc++-v3 configure). [BZ #21930] * math/math.h (isinf): Check if in C or C++ mode before using __builtin_types_compatible_p, since this is a C mode feature.
Diffstat (limited to 'misc')
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