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project('check header', 'c', 'cpp')
host_system = host_machine.system()
non_existant_header = 'ouagadougou.h'
# Copy it into the builddir to ensure that it isn't found even if it's there
configure_file(input : non_existant_header,
output : non_existant_header,
copy: true)
fallback = ''
foreach comp : [meson.get_compiler('c'), meson.get_compiler('cpp')]
assert(comp.check_header('stdio.h', prefix : fallback), 'Stdio missing.')
# stdio.h doesn't actually need stdlib.h, but just test that setting the
# prefix does not result in an error.
assert(comp.check_header('stdio.h', prefix : '#include <stdlib.h>' + fallback),
'Stdio missing.')
# Test that check_header behaves differently than has_header. The second
# check without windows.h will fail with check_header.
# We only do this check on MSVC because MinGW often defines its own wrappers
# that pre-include windows.h
if comp.get_id() == 'msvc'
assert(comp.check_header('XInput.h', prefix : '#include <windows.h>' + fallback),
'XInput.h should not be missing on Windows')
assert(not comp.check_header('XInput.h'), 'XInput.h needs 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'
assert(comp.check_header('linux/socket.h', prefix : fallback),
'Could not find <linux/socket.h>')
if comp.has_header('intrin.h', prefix : fallback)
assert(not comp.check_header('intrin.h'),
'intrin.h should not be usable on linux')
endif
endif
# 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.check_header(non_existant_header, prefix : fallback),
'Found non-existant header.')
endforeach