+crypt_header = conf.get('HAVE_CRYPT_H') == 1 ? '''#include <crypt.h>''' : '''#include <unistd.h>'''
+foreach ident : [
+ ['crypt_ra', crypt_header],
+ ['crypt_preferred_method', crypt_header],
+ ['crypt_gensalt_ra', crypt_header]]
+
+ have = cc.has_function(ident[0], prefix : ident[1], args : '-D_GNU_SOURCE',
+ dependencies : libcrypt)
+ conf.set10('HAVE_' + ident[0].to_upper(), have)
+endforeach
+