_GNU_SOURCE is supposed to imply _LARGEFILE64_SOURCE

[musl] / include / unistd.h

diff --git a/include/unistd.h b/include/unistd.h
index 7f2dd68..9c737f7 100644 (file)
--- a/include/unistd.h
+++ b/include/unistd.h
@@ -176,7 +176,7 @@ int getresgid(gid_t *, gid_t *, gid_t *);
 char *get_current_dir_name(void);
 #endif
 
-#ifdef _LARGEFILE64_SOURCE
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
 #define lseek64 lseek
 #define pread64 pread
 #define pwrite64 pwrite