From 2c09c0e0f4c853dbd65faf90e132aa6c16291b67 Mon Sep 17 00:00:00 2001
From: FX Coudert <fxcoudert@gmail.com>
Date: Wed, 2 Jan 2019 14:29:36 +0100
Subject: [PATCH] shims/super/cc: Do not remove -Xpreprocessor argument

---
 Library/Homebrew/shims/super/cc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Library/Homebrew/shims/super/cc b/Library/Homebrew/shims/super/cc
index 6054e44220..008b015efc 100755
--- a/Library/Homebrew/shims/super/cc
+++ b/Library/Homebrew/shims/super/cc
@@ -187,6 +187,9 @@ class Cmd
       "-fuse-linker-plugin", "-frounding-math"
       # clang doesn't support these flags
       args << arg unless tool =~ /^clang/
+    when "-Xpreprocessor"
+      # used for -Xpreprocessor -fopenmp
+      args << arg << enum.next
     when /-mmacosx-version-min=10\.(\d)/
       arg = "-mmacosx-version-min=10.9" if high_sierra_or_later? && $1.to_i < 9
       args << arg