diff --git a/meson.build b/meson.build index dfe18f7e7b..76ad51d3fb 100644 --- a/meson.build +++ b/meson.build @@ -1013,22 +1013,23 @@ endif ##################################################################### -libatomic = [] -if not cc.links('''#include - int main() { - char i; - __atomic_exchange_1(&i, 1, 0); - return 1; - }''', - name : 'Atomic builtin requires -latomic') - libatomic = cc.find_library('atomic') -endif threads = dependency('threads') librt = cc.find_library('rt') libm = cc.find_library('m') libdl = cc.find_library('dl') libcrypt = cc.find_library('crypt') +# On some architectures, libatomic is required. But on some installations, +# it is found, but actual linking fails. So let's try to use it opportunistically. +# If it is installed, but not needed, it will be dropped because of --as-needed. +if cc.links('''int main(int argc, char **argv) { return 0; }''', + args : '-latomic', + name : 'libatomic') + libatomic = declare_dependency(link_args : '-latomic') +else + libatomic = [] +endif + crypt_header = conf.get('HAVE_CRYPT_H') == 1 ? '''#include ''' : '''#include ''' foreach ident : [ ['crypt_ra', crypt_header],