From 14cb8c8fce63dba41384ad2f8b8849ef206d8699 Mon Sep 17 00:00:00 2001
From: Charlie Sharpsteen <source@sharpsteen.net>
Date: Tue, 13 Nov 2012 17:22:36 -0800
Subject: [PATCH] ENV.rb: Configure Objective-C++ compiler

Ensures the `OBJCXX` environment variable is correctly set. Also adds `OBJC`
and `OBJCXX` to `ENV.remove_cc_etc`.
---
 Library/Homebrew/extend/ENV.rb | 33 ++++++++++++++-------------------
 1 file changed, 14 insertions(+), 19 deletions(-)

diff --git a/Library/Homebrew/extend/ENV.rb b/Library/Homebrew/extend/ENV.rb
index 3ce1aba57c..22b057dba6 100644
--- a/Library/Homebrew/extend/ENV.rb
+++ b/Library/Homebrew/extend/ENV.rb
@@ -47,9 +47,8 @@ module HomebrewEnvExtension
     unless self['CC']
       @compiler = MacOS.default_compiler
       self.send @compiler
-      self['CC'] = MacOS.locate("cc")
-      self['CXX'] = MacOS.locate("c++")
-      self['OBJC'] = self['CC']
+      self['CC'] = self['OBJC'] = MacOS.locate("cc")
+      self['CXX'] = self['OBJCXX'] = MacOS.locate("c++")
     end
 
     # Add lib and include etc. from the current macosxsdk to compiler flags:
@@ -116,9 +115,8 @@ module HomebrewEnvExtension
 
   def gcc_4_0_1
     # we don't use locate because gcc 4.0 has not been provided since Xcode 4
-    self['CC'] = "#{MacOS.dev_tools_path}/gcc-4.0"
-    self['CXX'] = "#{MacOS.dev_tools_path}/g++-4.0"
-    self['OBJC'] = self['CC']
+    self['CC'] = self['OBJC'] = "#{MacOS.dev_tools_path}/gcc-4.0"
+    self['CXX'] = self['OBJCXX'] = "#{MacOS.dev_tools_path}/g++-4.0"
     replace_in_cflags '-O4', '-O3'
     set_cpu_cflags 'nocona -mssse3', :core => 'prescott', :bottle => 'generic'
     @compiler = :gcc
@@ -132,6 +130,7 @@ module HomebrewEnvExtension
     self['CXX'] =~ %r{/usr/bin/xcrun (.*)}
     self['CXX'] = `/usr/bin/xcrun -find #{$1}`.chomp if $1
     self['OBJC'] = self['CC']
+    self['OBJCXX'] = self['CXX']
   end
 
   def gcc
@@ -139,14 +138,12 @@ module HomebrewEnvExtension
     # However they still provide a gcc symlink to llvm
     # But we don't want LLVM of course.
 
-    self['CC'] = MacOS.locate "gcc-4.2"
-    self['CXX'] = MacOS.locate "g++-4.2"
-    self['OBJC'] = self['CC']
+    self['CC'] = self['OBJC'] = MacOS.locate("gcc-4.2")
+    self['CXX'] = self['OBJCXX'] = MacOS.locate("g++-4.2")
 
     unless self['CC']
-      self['CC'] = "#{HOMEBREW_PREFIX}/bin/gcc-4.2"
-      self['CXX'] = "#{HOMEBREW_PREFIX}/bin/g++-4.2"
-      self['OBJC'] = self['CC']
+      self['CC'] = self['OBJC'] = "#{HOMEBREW_PREFIX}/bin/gcc-4.2"
+      self['CXX'] = self['OBJCXX'] = "#{HOMEBREW_PREFIX}/bin/g++-4.2"
       raise "GCC could not be found" unless File.exist? self['CC']
     end
 
@@ -161,17 +158,15 @@ module HomebrewEnvExtension
   alias_method :gcc_4_2, :gcc
 
   def llvm
-    self['CC'] = MacOS.locate "llvm-gcc"
-    self['CXX'] = MacOS.locate "llvm-g++"
-    self['OBJC'] = self['CC']
+    self['CC'] = self['OBJC'] = MacOS.locate("llvm-gcc")
+    self['CXX'] = self['OBJCXX'] = MacOS.locate("llvm-g++")
     set_cpu_cflags 'core2 -msse4', :penryn => 'core2 -msse4.1', :core2 => 'core2', :core => 'prescott'
     @compiler = :llvm
   end
 
   def clang
-    self['CC'] = MacOS.locate "clang"
-    self['CXX'] = MacOS.locate "clang++"
-    self['OBJC'] = self['CC']
+    self['CC'] = self['OBJC'] = MacOS.locate("clang")
+    self['CXX'] = self['OBJCXX'] = MacOS.locate("clang++")
     replace_in_cflags(/-Xarch_i386 (-march=\S*)/, '\1')
     # Clang mistakenly enables AES-NI on plain Nehalem
     set_cpu_cflags 'native', :nehalem => 'native -Xclang -target-feature -Xclang -aes'
@@ -377,7 +372,7 @@ end
 
 class << ENV
   def remove_cc_etc
-    keys = %w{CC CXX LD CPP CFLAGS CXXFLAGS OBJCFLAGS OBJCXXFLAGS LDFLAGS CPPFLAGS}
+    keys = %w{CC CXX OBJC OBJCXX LD CPP CFLAGS CXXFLAGS OBJCFLAGS OBJCXXFLAGS LDFLAGS CPPFLAGS}
     removed = Hash[*keys.map{ |key| [key, self[key]] }.flatten]
     keys.each do |key|
       delete(key)