Amittai Aviram <amittai.aviram@xxxxxxxx> writes: > But I cannot find any definition for OMP_CLAUSE_CHECK. Where does GCC define this macro? Thanks. It is defined in the generated file tree-check.h. After building gcc, look at gcc/tree-check.h in your build directory. tree-check.h is built by the gencheck program. At present the definition is #define OMP_CLAUSE_CHECK(t) TREE_CHECK (t, OMP_CLAUSE) Ian
