On 04/02/2014 10:36 AM, Thomas Schwinge wrote:
>> I see regressions in the libgomp testsuite for configurations where
>> offloading is not enabled:
>>
>>      spawn [...]/build/gcc/xgcc -B[...]/build/gcc/ [...]/source/libgomp/testsuite/libgomp.c/for-3.c -B[...]/build/x86_64-unknown-linux-gnu/./libgomp/ -B[...]/build/x86_64-unknown-linux-gnu/./libgomp/.libs -I[...]/build/x86_64-unknown-linux-gnu/./libgomp -I[...]/source/libgomp/testsuite/.. -fmessage-length=0 -fno-diagnostics-show-caret -fdiagnostics-color=never -fopenmp -std=gnu99 -fopenmp -L[...]/build/x86_64-unknown-linux-gnu/./libgomp/.libs -lm -o ./for-3.exe
>>      /tmp/ccGnT0ei.o: In function `main':
>>      for-3.c:(.text+0x21032): undefined reference to `__OPENMP_TARGET__'
>>      collect2: error: ld returned 1 exit status
>>
>> I suppose that's because [...]
>
> Workaround committed in r209015:

>      	libgcc/
>      	* crtstuff.c [!ENABLE_OFFLOADING] (__OPENMP_TARGET__): Define to
>      	NULL.

The patch below should be a better fix, making the references to 
__OPENMP_TARGET__ weak. Does this work for you?


Bernd