-# Override R weird defaults:
-# https://stackoverflow.com/questions/23414448/r-makevars-file-to-overwrite-r-cmds-default-g-options
-%.o: %.c
- $(CC) -std=c11 -I"$(R_INCLUDE_DIR)" -DNDEBUG -fPIC -O2 -c $< -o $@
+PKG_CFLAGS = $(SHLIB_OPENMP_CFLAGS)
+PKG_LIBS = $(SHLIB_OPENMP_CFLAGS)
+
+#%.o: %.c
+# $(CC) -std=c11 -I"$(R_INCLUDE_DIR)" -DNDEBUG -fPIC -fopenmp -O2 -c $< -o $@