build: fix clang-cl builds, add CI job #15449
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Fixes: ``` In file included from C:\projects\curl\_bld\lib\CMakeFiles\libcurl_object.dir\Unity\unity_0_c.c:145: C:/projects/curl/lib/formdata.c(797,29): error : extension used [-Werror,-Wlanguage-extension-token] [C:\projects\curl\_bld\lib\libcurl_object.vcxproj] In file included from C:\projects\curl\_bld\lib\CMakeFiles\libcurl_object.dir\Unity\unity_0_c.c:391: C:/projects/curl/lib/warnless.c(117,33): error : extension used [-Werror,-Wlanguage-extension-token] [C:\projects\curl\_bld\lib\libcurl_object.vcxproj] C:/projects/curl/lib/warnless.c(60,28): message : expanded from macro 'CURL_MASK_SCOFFT' [C:\projects\curl\_bld\lib\libcurl_object.vcxproj] C:/projects/curl/lib/warnless.c(59,38): message : expanded from macro 'CURL_MASK_UCOFFT' [C:\projects\curl\_bld\lib\libcurl_object.vcxproj] C:\projects\curl\include\curl/system.h(352,40): message : expanded from macro 'CURL_TYPEOF_CURL_OFF_T' [C:\projects\curl\_bld\lib\libcurl_object.vcxproj] ``` https://ci.appveyor.com/project/curlorg/curl/builds/50887118/job/3kjlub2t0k6kadka#L180 Triggered by the `__int64` type, when using clang-cl (17.0.3). Follow-up to 84338c4 curl#12331
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This reverts commit d7820c2. It's on by default, so going with the solution of explicitly silencing it in source.
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``` curl\docs\examples\http2-upload.c(56,5): error : no previous prototype for function 'my_gettimeofday' [-Werror,-Wmissing-prototypes] [C:\projects\curl\_bld\docs\examples\curl-example-http2-upload.vcxproj] curl\docs\examples\http2-upload.c(56,1): message : declare 'static' if the function is not intended to be used outside of this translation unit [C:\projects\curl\_bld\docs\examples\curl-example-http2-upload.vcxproj] ``` Ref: https://ci.appveyor.com/project/curlorg/curl/builds/50888614/job/6gl5ssxusx7wmo2d#L476
__clang__ normally implies __GNUC__. Except for clang-cl, where it doesn't. Explicitly enable these for __clang__ to cover this case.
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It's enabled by -pedantic as a warning and by -pedantic-errors as an error. Before this patch this was done only for `CURL_WERROR=ON` builds. (Verifiable using llvm's `diagtool show-enabled -pedantic test.c`) Follow-up to fb711b5 curl#15449
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This fixes clang-cl builds with `CURL_WERROR=OFF` (default). This warning is enabled by `-pedantic` as a warning and by `-pedantic-errors` as an error. Verifiable using llvm's `diagtool show-enabled -pedantic test.c`. Follow-up to fb711b5 curl#15449
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appveyor: add build-only job for clang-cl.
cmake:
-pedantic-errorsenables-Werror,-Wlanguage-extension-tokenautomatically, which makes
__int64detection fail.Explictly disable this compiler warning for clang-cl to make the
feature detection work and to accept
__int64in the source code.cmake: disable
-Wlanguage-extension-tokenwarning for clang-clto fix these when encountering
__int64:make
__GNUC__warning suppressions apply to__clang__too.Necessary for clang-cl, which defines the latter, but not the former.
(Regular clang defines both.)
examples: fix clang-cl compiler warning in
http2-upload.c.unit2604: add missing
#pragma GCC diagnostic pop.Follow-up to e53523f CI: move Azure jobs to GHA, fix fallouts, sshserver, runtests tweaks #14859
unit1652: limit compiler warning suppression to GCC.
They do not affect clang builds.
Follow-up to 71cf0d1 tests: speed up builds with single-binary test bundles #14772
PICKY_COMPILER=OFF.https://ci.appveyor.com/project/curlorg/curl/builds/50887661/job/2q0w0sc72nf0379o
__int64gets undetected and the build goes off-track.