https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69826
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jakub at gcc dot gnu.org --- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> --- This compiles just fine, unless -save-temps is used. Therefore, do you have say ccache installed? Just get rid of it... Fixing the preprocessing for #define CILK_FOR_GRAINSIZE 128 #pragma cilk grainsize =CILK_FOR_GRAINSIZE is very easy, but if there is no whitespace between grainsize (which is not supposed to be macro expanded) and =, then it is still not expanded.