_GNU_SOURCE 40 posix/posix.c #if defined(_GNU_SOURCE) && !defined(__USE_GNU) _GNU_SOURCE 635 posix/posix.c #if defined(_GNU_SOURCE) && !defined(DARWIN) && defined(HAVE_UTSNAME_DOMAINNAME) _GNU_SOURCE 309 sqlite3/libsqlite/sqlite3.c #ifndef _GNU_SOURCE _GNU_SOURCE 37 standard/crypt.c # if defined(CRYPT_R_GNU_SOURCE) && !defined(_GNU_SOURCE) _GNU_SOURCE 115 standard/file.c # ifndef _GNU_SOURCE