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llvm / llvm-project / e71c8ea3cc73c8f7b0382468f355a254166d3a72
commite71c8ea3cc73c8f7b0382468f355a254166d3a72[log] [tgz]
authorRainer Orth <ro@gcc.gnu.org>Sat Apr 26 17:06:04 2025 +0200
committerGitHub <noreply@github.com>Sat Apr 26 17:06:04 2025 +0200
treeb48b33a412d90e57f7b973875061eb20e573471f
parentd59163092dfa7ec94391121ffdcb7b9b0e58f3b4 [diff]
[Driver] Fix _XOPEN_SOURCE definition on Solaris (#137141)

Since commit 613a077b05b8352a48695be295037306f5fca151, `flang` doesn't
build any longer on Solaris/amd64:
```
flang/lib/Evaluate/intrinsics-library.cpp:225:26:
error: address of overloaded function 'acos' does not match required type '__float128 (__float128)'
  225 |       FolderFactory<F, F{std::acos}>::Create("acos"),
      |                          ^~~~~~~~~
```
That patch led to the version of `quadmath.h` deep inside `/usr/gcc/<N>`
to be found, thus `HAS_QUADMATHLIB` is defined. However, the `struct
HostRuntimeLibrary<__float128, LibraryVersion::Libm>` template is
guarded by `_POSIX_C_SOURCE >= 200112L || _XOPEN_SOURCE >= 600`, while
`clang` only predefines `_XOPEN_SOURCE=500`.

This code dates back to commit 0c1941cb055fcf008e17faa6605969673211bea3
back in 2012. Currently, this is long obsolete and `gcc` prefefines
`_XOPEN_SOURCE=600` instead since GCC 4.6 back in 2011.

This patch follows that.

Tested on `amd64-pc-solaris2.11` and `sparcv9-sun-solaris2.11`.
1 file changed
tree: b48b33a412d90e57f7b973875061eb20e573471f
  1. .ci/
  2. .github/
  3. bolt/
  4. clang/
  5. clang-tools-extra/
  6. cmake/
  7. compiler-rt/
  8. cross-project-tests/
  9. flang/
  10. flang-rt/
  11. libc/
  12. libclc/
  13. libcxx/
  14. libcxxabi/
  15. libunwind/
  16. lld/
  17. lldb/
  18. llvm/
  19. llvm-libgcc/
  20. mlir/
  21. offload/
  22. openmp/
  23. polly/
  24. pstl/
  25. runtimes/
  26. third-party/
  27. utils/
  28. .clang-format
  29. .clang-format-ignore
  30. .clang-tidy
  31. .git-blame-ignore-revs
  32. .gitattributes
  33. .gitignore
  34. .mailmap
  35. CODE_OF_CONDUCT.md
  36. CONTRIBUTING.md
  37. LICENSE.TXT
  38. pyproject.toml
  39. README.md
  40. SECURITY.md
README.md

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