ggml-org
error: 'CLOCK_MONOTONIC' undeclared
The initial make fails with CLOCK_MONOTONIC undeclared
I llama.cpp build info:
I UNAME_S: Linux
I UNAME_P: unknown
I UNAME_M: x86_64
I CFLAGS: -I. -O3 -DNDEBUG -std=c11 -fPIC -pthread -mavx -mavx2 -mfma -mf16c -msse3
I CXXFLAGS: -I. -I./examples -O3 -DNDEBUG -std=c++11 -fPIC -pthread
I LDFLAGS:
I CC: cc (Alpine 12.2.1_git20220924-r9) 12.2.1 20220924
I CXX: g++ (Alpine 12.2.1_git20220924-r9) 12.2.1 20220924
cc -I. -O3 -DNDEBUG -std=c11 -fPIC -pthread -mavx -mavx2 -mfma -mf16c -msse3 -c ggml.c -o ggml.o
ggml.c: In function 'ggml_time_ms':
ggml.c:309:5: warning: implicit declaration of function 'clock_gettime' [-Wimplicit-function-declaration]
309 | clock_gettime(CLOCK_MONOTONIC, &ts);
| ^~~~~~~~~~~~~
ggml.c:309:19: error: 'CLOCK_MONOTONIC' undeclared (first use in this function)
309 | clock_gettime(CLOCK_MONOTONIC, &ts);
| ^~~~~~~~~~~~~~~
ggml.c:309:19: note: each undeclared identifier is reported only once for each function it appears in
ggml.c: In function 'ggml_time_us':
ggml.c:315:19: error: 'CLOCK_MONOTONIC' undeclared (first use in this function)
315 | clock_gettime(CLOCK_MONOTONIC, &ts);
| ^~~~~~~~~~~~~~~
make: *** [Makefile:182: ggml.o] Error 1
This can be solved by adding -D_POSIX_C_SOURCE=199309L to the C{,XX}FLAGS in the Makefile. See this Stackoverflow question: https://stackoverflow.com/questions/29666937/error-clock-monotonic-undeclared-first-use-in-this-function
same question
(base) lizheng@lizheng-System-Product-Name:/home/ytkj/root1/liuxiao/LLM/llama.cpp$ make
I llama.cpp build info:
I UNAME_S: Linux
I UNAME_P: x86_64
I UNAME_M: x86_64
I CFLAGS: -I. -O3 -DNDEBUG -std=c11 -fPIC -pthread -mavx -mavx2 -mfma -mf16c -msse3
I CXXFLAGS: -I. -I./examples -O3 -DNDEBUG -std=c++11 -fPIC -pthread
I LDFLAGS:
I CC: cc (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609
I CXX: g++ (Ubuntu 5.4.0-6ubuntu1~16.04.12) 5.4.0 20160609
cc -I. -O3 -DNDEBUG -std=c11 -fPIC -pthread -mavx -mavx2 -mfma -mf16c -msse3 -c ggml.c -o ggml.o
ggml.c: In function ‘ggml_time_ms’:
ggml.c:309:5: warning: implicit declaration of function ‘clock_gettime’ [-Wimplicit-function-declaration]
clock_gettime(CLOCK_MONOTONIC, &ts);
^
ggml.c:309:19: error: ‘CLOCK_MONOTONIC’ undeclared (first use in this function)
clock_gettime(CLOCK_MONOTONIC, &ts);
^
ggml.c:309:19: note: each undeclared identifier is reported only once for each function it appears in
ggml.c: In function ‘ggml_time_us’:
ggml.c:315:19: error: ‘CLOCK_MONOTONIC’ undeclared (first use in this function)
clock_gettime(CLOCK_MONOTONIC, &ts);
^
Makefile:182: recipe for target 'ggml.o' failed
make: *** [ggml.o] Error 1
在ggml.h头文件中增加以下宏定义即可 #define _POSIX_C_SOURCE 199309L
This fixed it for me
Adding -lrt to the CXXFLAGS and changing CFLAGS to use -std=gnu11 worked for me, running Ubuntu 16
我的机器是centos7， 我在 Makefile文件添加 -D_POSIX_C_SOURCE=199309L 可以解决问题。
CFLAGS = -I. -O3 -DNDEBUG -std=c11 -fPIC -D_POSIX_C_SOURCE=199309L
CXXFLAGS = -I. -I./examples -O3 -DNDEBUG -std=c++11 -fPIC -D_POSIX_C_SOURCE=199309L
Same happens when compiling on macOS 10.7: ggml.c:310:19: error: use of undeclared identifier 'CLOCK MONOTONIC' ggml.c:316:19: error: use of undeclared identifier 'CLOCK MONOTONIC'
