https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66943
--- Comment #11 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- I think having -Wignored-pragma-omp would be useful: 1. It is useful to have a warning that warns that you need to use -fopenmp for #pragma omp to have an effect. 2. However, it is very common to want to compile code with and without -fopenmp. 3. Using -Wno-unknown-pragma means that any typos in pragmas (#pragma oomp) will not be detected. -Wignored-pragma-omp could say something like: warming: ‘#pragma omp for’ ignored without '-fopenmp'
