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0.35.1
0.41
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0.42-msi
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0.64
0.tryme
1.0
1.1
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1.3
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1.5
1.tryme
biggen
builddirupgrade
corporations
crossenvvar
darwin_arch
deprecationdeadline
dirc2
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dolphin
dotinclude
es/0.61-plus-cython
fedora
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master
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pr8895-old
remove-parse_cmd_line_options
revert-10757-llvm-config
rustcmix
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tingping/test-profile
tingping/xdg-module
trigger-ciimage-builder
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versionfile
vsmodtest
wip/default-directories
wip/ignatenko/gtester
wip/tingping/xdg-auto-post-install
wip/xclaesse/pr-10714
wip/xclaesse/pr-12097
xclaesse/pr11561-orig
0.1.0
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0.35.1
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0.4.0
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0.40.0
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0.62.0
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1.5.1
1.5.2
1.6.0
1.6.0rc1
1.6.0rc2
${ noResults }
556 B
556 B
New compiler check: check_header()
The existing compiler check has_header() only checks if the header exists,
either with the __has_include C++11 builtin, or by running the pre-processor.
However, sometimes the header you are looking for is unusable on some platforms
or with some compilers in a way that is only detectable at compile-time. For
such cases, you should use check_header() which will include the header and
run a full compile.
Note that has_header() is much faster than check_header(), so it should be
used whenever possible.