rework langinfo code for ABI compat and for use by time code

[musl] / src / process / posix_spawnattr_setsigdefault.c

#include <spawn.h>

int posix_spawnattr_setsigdefault(posix_spawnattr_t *restrict attr, const sigset_t *restrict def)
{
        attr->__def = *def;
        return 0;
}