ggml : remove _GNU_SOURCE

ref : ggml-org/whisper.cpp#1027

Author: ggerganov

scripts/sync-whisper.sh

@@ -5,6 +5,9 @@ cp -rpv ../whisper.cpp/ggml-cuda.h                    src/ggml-cuda.h
 cp -rpv ../whisper.cpp/ggml-cuda.cu                   src/ggml-cuda.cu
 cp -rpv ../whisper.cpp/ggml-opencl.h                  src/ggml-opencl.h
 cp -rpv ../whisper.cpp/ggml-opencl.cpp                src/ggml-opencl.cpp
+cp -rpv ../whisper.cpp/ggml-metal.h                   src/ggml-metal.h
+cp -rpv ../whisper.cpp/ggml-metal.m                   src/ggml-metal.m
+cp -rpv ../whisper.cpp/ggml-metal.metal               src/ggml-metal.metal
 cp -rpv ../whisper.cpp/ggml.h                         include/ggml/ggml.h
 cp -rpv ../whisper.cpp/examples/common.h              examples/common.h
 cp -rpv ../whisper.cpp/examples/common.cpp            examples/common.cpp

src/ggml.c

@@ -1,4 +1,3 @@
-#define _GNU_SOURCE // Defines CLOCK_MONOTONIC on Linux
 #define _CRT_SECURE_NO_DEPRECATE // Disables ridiculous "unsafe" warnigns on Windows
 
 #include "ggml.h"