2c4bfefe91
On Windows a successful `sched_yield()` detection requires mingw-w64 built with POSIX threads (not Win32 threads) and GCC (not llvm/clang). (linking to `winpthread` via custom options may also work.) In CMake builds, it was pre-cached as unavailable before this patch. When detected (via autotools), it got only used for Windows XP or older targets combined with a non-GCC, non-clang compiler that doesn't support `__builtin_ia32_pause()`, or with the Intel C compiler. According to `lib/easy_lock.h`. mingw-w64 only supports GCC and clang, leaving a very narrow chance when `shed_yield()` gets called on Windows. Even then, `sched_yield()` is implemented in `winpthread` as `Sleep(0)`, which may or not be a useful. It's also trivial to implement locally if it is, and such rare build combination is also deemed useful. Thus, this patch marks `sched_yields()` permanently unavailable on the Windows platform also with autotools, and instead of pre-caching, skip this feature check with CMake. This syncs `HAVE_SCHED_YIELDS` between builds methods on Windows. Follow-up to |
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|---|---|---|
| .circleci | ||
| .github | ||
| CMake | ||
| docs | ||
| include | ||
| lib | ||
| LICENSES | ||
| m4 | ||
| packages | ||
| plan9 | ||
| projects | ||
| scripts | ||
| src | ||
| tests | ||
| winbuild | ||
| .dir-locals.el | ||
| .git-blame-ignore-revs | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| acinclude.m4 | ||
| appveyor.sh | ||
| appveyor.yml | ||
| buildconf | ||
| buildconf.bat | ||
| CHANGES.md | ||
| CMakeLists.txt | ||
| configure.ac | ||
| COPYING | ||
| curl-config.in | ||
| Dockerfile | ||
| GIT-INFO.md | ||
| libcurl.pc.in | ||
| Makefile.am | ||
| Makefile.dist | ||
| README | ||
| README.md | ||
| RELEASE-NOTES | ||
| renovate.json | ||
| REUSE.toml | ||
| SECURITY.md | ||
curl is a command-line tool for transferring data specified with URL syntax. Learn how to use curl by reading the manpage or everything curl.
Find out how to install curl by reading the INSTALL document.
libcurl is the library curl is using to do its job. It is readily available to be used by your software. Read the libcurl manpage to learn how.
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curl is Open Source and is distributed under an MIT-like license.
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Notice
curl contains pieces of source code that is Copyright (c) 1998, 1999 Kungliga Tekniska Högskolan. This notice is included here to comply with the distribution terms.
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