16 files changed, 206 insertions, 0 deletions
diff --git a/Library/ENV/4.3/c++ b/Library/ENV/4.3/c++
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/c++
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/cc b/Library/ENV/4.3/cc
new file mode 100755
index 000000000..8673c7527
--- /dev/null
+++ b/Library/ENV/4.3/cc
@@ -0,0 +1,140 @@
+#!/usr/bin/ruby -W0
+#TODO make it work with homebrew/dupes/gcc
+#TODO? If we find -mmacosx-version-min=10.8, change sdkroot? warn visibly if no such SDK?
+#TODO fix pkg-config files, should point to /usr/local or /usr/local/opt
+#TODO for easier to understand code, don't monkey-patch ENV, just set via a hash from a helper class
+#TODO create mechanism to specify build effects like %w{-O0 -O4 vanilla-arg-parsing sdk=10.6} etc.
+#TODO DSL for lame-env (and rename to typical-env or something better)
+#TODO consider always setting CC to cc and instead having HOMEBREW_CC to force cc choice in end toolchain
+#     in verbose mode print out things like "gcc called, but redirecting to clang" if that happens
+#TODO `brew sh`: https://github.com/mxcl/homebrew/issues/14381#issuecomment-8017538
+
+require "#{File.dirname __FILE__}/../libsuperenv"
+require 'set'
+
+def cccfg? flags
+  flags.split('').all?{|c| ENV['HOMEBREW_CCCFG'].include? c } if ENV['HOMEBREW_CCCFG']
+end
+def nclt?
+  $sdkroot != nil
+end
+def cmake_prefixes
+  @prefixes ||= ENV['CMAKE_PREFIX_PATH'].split(':').reject do |path|
+    case path
+      when '/usr/local' then !nclt?
+      when '/usr', '/', "#$sdkroot/usr" then true
+    end
+  end
+end
+
+class Cmd
+  def initialize path, args
+    @cmd = path.basename.freeze
+    @args = args.freeze
+  end
+  def mode
+    if @cmd == 'cpp' or @cmd == 'ld'
+      @cmd.to_sym
+    elsif @args.include? '-c'
+      :cc
+    elsif @args.include? '-E'
+      :cpp
+    else
+      :ccld
+    end
+  end
+  def tool
+    case @cmd
+      when /gcc/ then 'gcc'
+      when /g\+\+/ then 'g++'
+    when 'clang', 'clang++'
+      @cmd
+    when 'ld', 'cpp', 'cc'
+      ENV['HOMEBREW_CC'].chuzzle or 'clang'
+    when 'c++'
+      case ENV['HOMEBREW_CC']
+        when /gcc/ then 'g++'
+        else 'clang++'
+      end
+    else
+      abort "Unknown command: #{@cmd}"
+    end
+  end
+  def args
+    args = if cccfg? 'O'
+      refurbished_args
+    else
+      @args.dup
+    end
+    args.unshift("--sysroot=#$sdkroot") if nclt?
+    case mode
+    when :cpp
+      %w{-E} + cppflags + args
+    when :ld
+      ldflags + args
+    when :cc
+      cflags + cppflags + args
+    when :ccld
+      cflags + cppflags + ldflags + args
+    end.compact
+  end
+  def refurbished_args
+    iset = Set.new(cmake_prefixes.map{|prefix| "#{prefix}/include" })
+    lset = Set.new
+    args = []
+    whittler = @args.each
+    loop do
+      case arg = whittler.next
+      when '-arch', /^-Xarch_/
+        whittler.next
+      when /^-g\d?/, /^-gstabs\d+/, '-gstabs+', /^-ggdb\d?/, '-gdwarf-2',
+           /^-march=.+/, /^-mtune=.+/, '-m64', '-m32',
+           /^-O[0-9zs]/, '-fast',
+           %r{^-[IL]/opt/local}, %r{^-[IL]/sw},    # no macports/fink
+           %r{^-[IL]/usr/X11}, %r{^-[IL]/opt/X11}, # we add X11 ourselves
+           '-pedantic', '-pedantic-errors'
+      when /^-W.*/
+        args << arg if arg =~ /^-Wl,/
+      when /^-I(.+)/
+        # it is okay to add a space after the -I; so let's support it
+        path = $1.chuzzle || whittler.next
+        args << "-I#{path}" if iset.add?(path.cleanpath)
+      when /^-l(.+)/
+        lib = $1.chuzzle || whittler.next
+        args << "-l#{lib}" if lset.add?(lib)
+      else
+        args << arg
+      end
+    end
+    args
+  end
+  def cflags
+    if cccfg? 'Ob'
+      %w{-mtune=generic -Oz}
+    elsif cccfg? 'O'
+      u = '-arch i386 -arch x86_64' if cccfg? 'u'
+      c = case tool when 'clang', 'clang++' then '-march=native' end
+      %w{-pipe -w -Os} << u << c
+    else
+      []
+    end
+  end
+  def ldflags
+    cmake_prefixes.map{|prefix| "#{prefix}/lib" }.to_flags('-L')
+  end
+  def cppflags
+    all = cmake_prefixes.map{|prefix| "#{prefix}/include" }
+    opt = all.select{|prefix| prefix =~ %r{^#$brewfix/opt} }
+    sys = all - opt + ENV['CMAKE_INCLUDE_PATH'].split(':')
+    # we want our keg-only includes to be found before system includes so that
+    # they override the system options.
+    sys.to_flags('-isystem') + opt.to_flags('-I')
+  end
+end
+
+####################################################################### sanity
+abort "The build-tool has reset ENV. --lame-env required." unless ENV['HOMEBREW_BREW_FILE']
+
+######################################################################### main
+cmd = Cmd.new($0, ARGV)
+exec "xcrun", cmd.tool, *cmd.args
diff --git a/Library/ENV/4.3/clang b/Library/ENV/4.3/clang
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/clang
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/clang++ b/Library/ENV/4.3/clang++
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/clang++
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/cpp b/Library/ENV/4.3/cpp
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/cpp
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/g++ b/Library/ENV/4.3/g++
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/g++
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/gcc b/Library/ENV/4.3/gcc
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/gcc
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/i686-apple-darwin11-llvm-g++-4.2 b/Library/ENV/4.3/i686-apple-darwin11-llvm-g++-4.2
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/i686-apple-darwin11-llvm-g++-4.2
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/i686-apple-darwin11-llvm-gcc-4.2 b/Library/ENV/4.3/i686-apple-darwin11-llvm-gcc-4.2
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/i686-apple-darwin11-llvm-gcc-4.2
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/ld b/Library/ENV/4.3/ld
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/ld
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/llvm-g++ b/Library/ENV/4.3/llvm-g++
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/llvm-g++
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/llvm-g++-4.2 b/Library/ENV/4.3/llvm-g++-4.2
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/llvm-g++-4.2
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/llvm-gcc b/Library/ENV/4.3/llvm-gcc
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/llvm-gcc
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/llvm-gcc-4.2 b/Library/ENV/4.3/llvm-gcc-4.2
new file mode 120000
index 000000000..2652f5f42
--- /dev/null
+++ b/Library/ENV/4.3/llvm-gcc-4.2
@@ -0,0 +1 @@
+cc
+\ No newline at end of file
diff --git a/Library/ENV/4.3/xcrun b/Library/ENV/4.3/xcrun
new file mode 100755
index 000000000..3d2dd642e
--- /dev/null
+++ b/Library/ENV/4.3/xcrun
@@ -0,0 +1,12 @@
+#!/bin/bash
+# This wrapper because 4.3 xcrun doesn't work with CLT-only configurations
+# But many build-systems expect it to work. This fixes that.
+# NOTE only works if they call xcrun without a full-path. Cross your fingers!
+
+if [ $HOMEBREW_SDKROOT ]; then
+  exec /usr/bin/xcrun "$@"
+else
+  cmd="$1"
+  shift
+  exec "/usr/bin/$cmd" "$@"
+fi
diff --git a/Library/ENV/libsuperenv.rb b/Library/ENV/libsuperenv.rb
new file mode 100644
index 000000000..dcd97efce
--- /dev/null
+++ b/Library/ENV/libsuperenv.rb
@@ -0,0 +1,41 @@
+# Yes, a good deal of this could be imported from Homebrew-proper
+# But Homebrew-proper is dog-slow currently, and I didn't want every cc
+# instantiation to be slower be a tangible amount.
+
+class String
+  def directory?; File.directory? self end
+  def basename; File.basename self end
+  def cleanpath; require 'pathname'; Pathname.new(self).realpath.to_s rescue self end
+  def chuzzle; s = chomp; s unless s.empty? end
+  def dirname; File.dirname(self) end
+end
+
+class NilClass
+  def chuzzle; end
+  def directory?; false end
+  def split(x); [] end
+end
+
+class Array
+  def to_flags prefix
+    select{|path| path.directory? }.uniq.map{|path| prefix+path }
+  end
+end
+
+module Kernel extend self
+  alias :_exec :exec
+  def exec *args
+    path = File.expand_path('~/Library/Logs/Homebrew/cc.log')
+    open(path, 'a') do |f|
+      f.print '[', $0
+      f.print " -%s" % ENV['HOMEBREW_CCCFG'] if ENV['HOMEBREW_CCCFG']
+      f.print '] '
+      f.puts args.join(' ')
+      f.puts
+    end
+    _exec *args
+  end
+end if ENV['HOMEBREW_LOG']
+
+$brewfix = "#{__FILE__}/../../../".cleanpath.freeze
+$sdkroot = ENV['HOMEBREW_SDKROOT'].freeze