src/lib/libc++/Makefile, branch main

Revert 00bee6fcd77f, which partially reverted libc++ commit aa7f377c965c

2026-05-01T18:16:18Z

After base 966fb94cb357, this revert is no longer necessary: stdint.h will unconditionally define macros such as `SIZE_MAX`, `UINT64_C`, and others. Submitted by: Nikolas Klauser MFC after: 1 month Reviewed by: imp Differential Revision: https://reviews.freebsd.org/D56746

Partially revert libc++ commit aa7f377c965c, restoring stdint.h

2026-04-25T14:14:11Z

This partially reverts upstream libc++ commit aa7f377c965c: [libc++] Remove libc++'s own stdint.h and locale.h (#107436) These headers are not doing anything beyond the system or compiler provided equivalent headers, so there's no real reason to keep them around. Reducing the number of C headers we provide in libc++ simplifies our header layering and reduces the potential for confusion when headers are layered incorrectly. The problem is that libc++'s own `stdint.h` _does_ do something: it defines `__STDC_LIMIT_MACROS` and `__STDC_CONSTANT_MACROS` before including the system `stdint.h`, causing the latter to expose macros like `SIZE_MAX`, `UINT64_C`, and others. If the `__STDC_LIMIT_MACROS` and `__STDC_CONSTANT_MACROS` macros are not exposed, C++ programs compiled for standards before C++11 can fail with errors due to those macros not being available. PR: 292067 MFC after: 1 month

Merge llvm-project release/21.x llvmorg-21.1.7-0-gcd708029e0b2

2026-04-25T14:14:02Z

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp to llvm-project release/21.x llvmorg-21.1.7-0-gcd708029e0b2, a.k.a. 21.1.7 release. PR: 292067 MFC after: 1 month

Fixups after llvm-project main llvmorg-21-init-19288-gface93e724f4 merge

2026-04-25T14:11:52Z

Fix various configuration fails, update generated headers, Makefiles, etc. PR: 292067 MFC after: 1 month

Revert "libcxx-compat: install headers that were reintroduced by reverts"

2026-04-25T14:07:40Z

This reverts commit 8ad38d5eb3985ef778a7d36093878b0b373ccedf, in preparation for merging llvm 21. PR: 292067 MFC after: 1 month

Fix buildworld with gcc 12 after llvm-19 import

2024-10-25T16:08:32Z

Unfortunately gcc 12's is not yet capable of compiling all of libc++ 19's C++23 code, which results in errors similar to: /usr/src/freebsd/src/contrib/llvm-project/libcxx/include/__algorithm/ranges_contains.h:41:3: error: 'static constexpr bool std::__1::ranges::__contains::__fn::operator()(_Iter, _Sent, const _Type&, _Proj)' must be a non-static member function 41 | operator()(_Iter __first, _Sent __last, const _Type& __value, _Proj __proj = {}) { | ^~~~~~~~ /usr/src/freebsd/src/contrib/llvm-project/libcxx/include/__algorithm/ranges_contains.h:48:3: error: 'static constexpr bool std::__1::ranges::__contains::__fn::operator()(_Range&&, const _Type&, _Proj)' must be a non-static member function 48 | operator()(_Range&& __range, const _Type& __value, _Proj __proj = {}) { | ^~~~~~~~ Until we can get rid of gcc 12, work around this by making it compile libc++ in C++20 mode instead. NOTE: The resulting libc++ library will not be C++23 compatible! Please try to avoid shipping it, and use gcc 13 instead, if you must use gcc. PR: 280562 MFC after: 3 days

libcxx-compat: install headers that were reintroduced by reverts

2024-10-23T18:26:49Z

PR: 280562 MFC after: 1 month

Merge llvm-project release/19.x llvmorg-19.1.0-rc1-0-ga4902a36d5c2

2024-10-23T18:26:26Z

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp to llvm-project release/19.x llvmorg-19.1.0-rc1-0-ga4902a36d5c2. PR: 280562 MFC after: 1 month

Merge llvm-project main llvmorg-19-init-18630-gf2ccf80136a0

2024-10-23T18:26:01Z

This updates llvm, clang, compiler-rt, libc++, libunwind, lld, lldb and openmp to llvm-project main llvmorg-19-init-18630-gf2ccf80136a0, the last commit before the upstream release/19.x branch was created. PR: 280562 MFC after: 1 month

Remove residual blank line at start of Makefile

2024-07-15T22:43:39Z

This is a residual of the $FreeBSD$ removal. MFC After: 3 days (though I'll just run the command on the branches) Sponsored by: Netflix