Superenv wrapper for sed

Fixes Mountain Lion specific sed issue.

Provided scripts don't use the full-path to see we are fine. They never do though, that would assume too much.

Library/ENV/4.3/sed

@@ -0,0 +1,7 @@
+#!/bin/bash
+if [[ $HOMEBREW_CCCFG == *s* ]]; then
+  # Fix issue with sed barfing on unicode characters on Mountain Lion
+  unset LC_ALL
+  export LC_CTYPE='C'
+fi
+exec /usr/bin/sed "$@"

Library/Homebrew/superenv.rb

@@ -34,12 +34,6 @@ class << ENV
     delete('CDPATH') # avoid make issues that depend on changing directories
     delete('GREP_OPTIONS') # can break CMake
     delete('CLICOLOR_FORCE') # autotools doesn't like this
-
-    if MacOS.mountain_lion?
-      # Fix issue with sed barfing on unicode characters on Mountain Lion
-      delete('LC_ALL')
-      ENV['LC_CTYPE'] = "C"
-    end
   end
 
   def setup_build_environment
@@ -53,7 +47,7 @@ class << ENV
     ENV['PATH'] = determine_path
     ENV['PKG_CONFIG_PATH'] = determine_pkg_config_path
     ENV['HOMEBREW_CC'] = determine_cc
-    ENV['HOMEBREW_CCCFG'] = 'b' if ARGV.build_bottle?
+    ENV['HOMEBREW_CCCFG'] = determine_cccfg
     ENV['HOMEBREW_SDKROOT'] = "#{MacOS.sdk_path}" if MacSystem.xcode43_without_clt?
     ENV['CMAKE_PREFIX_PATH'] = determine_cmake_prefix_path
     ENV['CMAKE_FRAMEWORK_PATH'] = "#{MacOS.sdk_path}/System/Library/Frameworks" if MacSystem.xcode43_without_clt?
@@ -155,6 +149,14 @@ class << ENV
     end
   end
 
+  def determine_cccfg
+    s = ""
+    # Fix issue with sed barfing on unicode characters on Mountain Lion
+    s << 's' if MacOS.mountain_lion?
+    s << 'b' if ARGV.build_bottle?
+    s
+  end
+
   public
 
 ### NO LONGER NECESSARY OR NO LONGER SUPPORTED