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project('has header', 'c', 'cpp')
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host_system = host_machine.system()
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non_existent_header = 'ouagadougou.h'
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# Copy it into the builddir to ensure that it isn't found even if it's there
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configure_file(input : non_existent_header,
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output : non_existent_header,
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configuration : configuration_data())
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# Test that the fallback to __has_include also works on all compilers
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if host_system != 'darwin'
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fallbacks = ['', '\n#undef __has_include']
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else
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# On Darwin's clang you can't redefine builtin macros so the above doesn't work
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fallbacks = ['']
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endif
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foreach fallback : fallbacks
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foreach comp : [meson.get_compiler('c'), meson.get_compiler('cpp')]
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assert(comp.has_header('stdio.h', prefix : fallback), 'Stdio missing.')
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# stdio.h doesn't actually need stdlib.h, but just test that setting the
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# prefix does not result in an error.
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assert(comp.has_header('stdio.h', prefix : '#include <stdlib.h>' + fallback),
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'Stdio missing.')
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|
|
# XInput.h should not require type definitions from windows.h, but it does
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|
|
# require macro definitions. Specifically, it requires an arch setting for
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|
# VS2015 at least.
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|
|
# We only do this check on MSVC because MinGW often defines its own wrappers
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|
|
# that pre-include windows.h
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|
|
|
if comp.get_id() == 'msvc'
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|
|
assert(comp.has_header('XInput.h', prefix : '#include <windows.h>' + fallback),
|
|
|
|
'XInput.h should not be missing on Windows')
|
|
|
|
assert(comp.has_header('XInput.h', prefix : '#define _X86_' + fallback),
|
|
|
|
'XInput.h should not need windows.h')
|
|
|
|
endif
|
|
|
|
|
|
|
|
# Test that the following GCC bug doesn't happen:
|
|
|
|
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=80005
|
|
|
|
# https://github.com/mesonbuild/meson/issues/1458
|
|
|
|
if host_system == 'linux'
|
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|
|
assert(comp.has_header('linux/if.h', prefix : fallback),
|
|
|
|
'Could not find <linux/if.h>')
|
|
|
|
endif
|
|
|
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|
|
# This header exists in the source and the builddir, but we still must not
|
|
|
|
# find it since we are looking in the system directories.
|
|
|
|
assert(not comp.has_header(non_existent_header, prefix : fallback),
|
|
|
|
'Found nonexistent header.')
|
|
|
|
endforeach
|
|
|
|
endforeach
|