Move llvm method to FailsWithLLVM

1 files changed, 34 insertions, 0 deletions

diff --git a/Library/Homebrew/formula_support.rb b/Library/Homebrew/formula_support.rb
index 6314f2951..df98f3cb4 100644
--- a/Library/Homebrew/formula_support.rb
+++ b/Library/Homebrew/formula_support.rb
@@ -92,4 +92,38 @@ class FailsWithLLVM
     s += "\n"
     return s
   end
+
+  def handle_failure
+    return unless ENV.compiler == :llvm
+
+    # version 2336 is the latest version as of Xcode 4.2, so it is the
+    # latest version we have tested against so we will switch to GCC and
+    # bump this integer when Xcode 4.3 is released. TODO do that!
+    if build.to_i >= 2336
+      if MacOS.xcode_version < "4.2"
+        opoo "Formula will not build with LLVM, using GCC"
+        ENV.gcc
+      else
+        opoo "Formula will not build with LLVM, trying Clang"
+        ENV.clang
+      end
+      return
+    end
+    opoo "Building with LLVM, but this formula is reported to not work with LLVM:"
+    puts
+    puts reason
+    puts
+    puts <<-EOS.undent
+      We are continuing anyway so if the build succeeds, please open a ticket with
+      the following information: #{MacOS.llvm_build_version}-#{MACOS_VERSION}. So
+      that we can update the formula accordingly. Thanks!
+      EOS
+    puts
+    if MacOS.xcode_version < "4.2"
+      puts "If it doesn't work you can: brew install --use-gcc"
+    else
+      puts "If it doesn't work you can try: brew install --use-clang"
+    end
+    puts
+  end
 end