gcc: don't use bottles on Xcode-only systems

1 files changed, 6 insertions, 0 deletions

diff --git a/Library/Formula/gcc.rb b/Library/Formula/gcc.rb
index 68622c82b..761c3fc5a 100644
--- a/Library/Formula/gcc.rb
+++ b/Library/Formula/gcc.rb
@@ -64,6 +64,12 @@ class Gcc < Formula
   # GCC bootstraps itself, so it is OK to have an incompatible C++ stdlib
   cxxstdlib_check :skip
 
+  # The bottles are built on systems with the CLT installed, and do not work
+  # out of the box on Xcode-only systems due to an incorrect sysroot.
+  def pour_bottle?
+    MacOS::CLT.installed?
+  end
+
   def install
     # GCC will suffer build errors if forced to use a particular linker.
     ENV.delete "LD"