Rainer Orth
593c8b73fb
Solaris 11 <math.h> long had this snippet which badly broke libstdc++. This has long been undone using fixincludes in [fixincludes, v3] Don't define libstdc++-internal macros in Solaris 10+ <math.h> https://gcc.gnu.org/ml/gcc-patches/2016-11/msg00330.html However, the issue came up again recently when that code broke the LLVM build, too, which unfortunately doesn't know about GCC's include-fixed directory. The issue was reinvestigated and it turned out that the workaround/hack is only needed for specific old versions of the Sun/Oracle Studio compilers. So <math.h> now looks like /* Accommodate historical C++11 -std=c++03 behavior of Studio 12.4 and 12.5 */ ((__SUNPRO_CC == 0x5130) || (__SUNPRO_CC == 0x5140) || \ defined(__MATH_PREEMPTS_GLIBCXX_C99_MATH)) If this change is in place, there's no longer a need for the fixincludes fix, so this patch bypasses it as appropriate. Tested on Solaris 11.3 (without the fixed header) and recent 11.4 (with the fixed header). 2022-11-01 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> fixincludes: * inclhack.def (solaris_math_12): Add bypass. * fixincl.x: Regenerate.
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