components/developer/clang-18/patches/03-default-preprocessor-definition.patch

   1 $NetBSD: patch-lib_Basic_Targets_OSTargets.h,v 1.4 2019/10/19 13:54:29 adam Exp $
   2
   3 Sync SunOS default defines with a working reality.
   4
   5 diff -wpruN '--exclude=*.orig' a~/lib/Basic/Targets/OSTargets.h a/lib/Basic/Targets/OSTargets.h
   6 --- a~/tools/clang/lib/Basic/Targets/OSTargets.h        1970-01-01 00:00:00
   7 +++ a/tools/clang/lib/Basic/Targets/OSTargets.h 1970-01-01 00:00:00
   8 @@ -628,22 +628,15 @@ protected:
   9      Builder.defineMacro("__ELF__");
  10      Builder.defineMacro("__svr4__");
  11      Builder.defineMacro("__SVR4");
  12 -    // Solaris headers require _XOPEN_SOURCE to be set to 600 for C99 and
  13 -    // newer, but to 500 for everything else.  feature_test.h has a check to
  14 -    // ensure that you are not using C99 with an old version of X/Open or C89
  15 -    // with a new version.
  16 -    if (Opts.C99)
  17 -      Builder.defineMacro("_XOPEN_SOURCE", "600");
  18 -    else
  19 -      Builder.defineMacro("_XOPEN_SOURCE", "500");
  20 +    // Compatibility with GCC to satisfy <sys/feature_tests.h> requirements.
  21      if (Opts.CPlusPlus) {
  22 -      Builder.defineMacro("__C99FEATURES__");
  23 +      Builder.defineMacro("__STDC_VERSION__", "199901L");
  24 +      Builder.defineMacro("_XOPEN_SOURCE", "600");
  25        Builder.defineMacro("_FILE_OFFSET_BITS", "64");
  26 -    }
  27 -    // GCC restricts the next two to C++.
  28      Builder.defineMacro("_LARGEFILE_SOURCE");
  29      Builder.defineMacro("_LARGEFILE64_SOURCE");
  30      Builder.defineMacro("__EXTENSIONS__");
  31 +    }
  32      if (Opts.POSIXThreads)
  33        Builder.defineMacro("_REENTRANT");
  34      if (this->HasFloat128)