cc: don't filter -fopenmp for non-llvm_clang.

We can filter it just for Clang and let it be used by anything else.

Library/Homebrew/shims/super/cc

@@ -156,7 +156,7 @@ class Cmd
       /^-O[0-9zs]?$/, "-fast", "-no-cpp-precomp",
       "-pedantic", "-pedantic-errors", "-Wno-long-double",
       "-Wno-unused-but-set-variable"
-    when "-mno-fused-madd", "-fforce-addr", "-fno-defer-pop",
+    when "-fopenmp", "-lgomp", "-mno-fused-madd", "-fforce-addr", "-fno-defer-pop",
       "-mno-dynamic-no-pic", "-fearly-inlining", /^-f(?:no-)?inline-functions-called-once/,
       /^-finline-limit/, /^-f(?:no-)?check-new/, "-fno-delete-null-pointer-checks",
       "-fcaller-saves", "-fthread-jumps", "-fno-reorder-blocks", "-fcse-skip-blocks",
@@ -165,8 +165,6 @@ class Cmd
       "-fuse-linker-plugin", "-frounding-math"
       # clang doesn't support these flags
       args << arg unless tool =~ /^clang/
-    when "-fopenmp", "-lgomp"
-      args << arg if tool =~ /^llvm_clang/
     when "--fast-math"
       arg = "-ffast-math" if tool =~ /^clang/
       args << arg