[libcxx22] devel/fmt build fix

fmt relies on libc++ headers pulling in stdlib.h somehow. This on longer happens in llvm22's libc++, and the build fails. The diff fixes this by following the approach taken in https://github.com/fmtlib/fmt/commit/b77a7516251d21aef1c6130dad116edff1a13173 It is not hard to update fmt itself to 12.2.0 which does build and pass tests, but I seem to remember that this has a tendency of breaking things that have embedded copies, so this seems the safer approach for now. /usr/ports/pobj/fmt-11.2.0/fmt-11.2.0/include/fmt/format.h:747:28: error: use of undeclared identifier 'malloc' 747 | T* p = static_cast<T*>(malloc(n * sizeof(T))); | ^~~~~~ /usr/ports/pobj/fmt-11.2.0/fmt-11.2.0/include/fmt/format.h:752:35: error: use of undeclared identifier 'free' 752 | void deallocate(T* p, size_t) { free(p); } | ^~~~ Index: Makefile =================================================================== RCS file: /cvs/ports/devel/fmt/Makefile,v diff -u -p -r1.7 Makefile --- Makefile 19 Nov 2025 11:50:17 -0000 1.7 +++ Makefile 19 Aug 2026 07:07:52 -0000 @@ -3,6 +3,7 @@ COMMENT= alternative formatting library GH_ACCOUNT= fmtlib GH_PROJECT= fmt GH_TAGNAME= 11.2.0 +REVISION= 0 SHARED_LIBS= fmt 2.1 Index: patches/patch-include_fmt_format_h =================================================================== RCS file: patches/patch-include_fmt_format_h diff -N patches/patch-include_fmt_format_h --- /dev/null 1 Jan 1970 00:00:00 -0000 +++ patches/patch-include_fmt_format_h 19 Aug 2026 07:07:42 -0000 @@ -0,0 +1,12 @@ +Index: include/fmt/format.h +--- include/fmt/format.h.orig ++++ include/fmt/format.h +@@ -41,6 +41,8 @@ + #include "base.h" + + #ifndef FMT_MODULE ++# include <stdlib.h> // malloc, free ++ + # include <cmath> // std::signbit + # include <cstddef> // std::byte + # include <cstdint> // uint32_t