Move GCC 4.5.2 to versions directory

New formula, versions/gcc45 which tracks 4.5.x releases.

Signed-off-by: Adam Vandenberg <[email protected]>

gcc45.rb

@@ -0,0 +1,145 @@
+require 'formula'
+
+def cxx?
+  ARGV.include? '--enable-cxx'
+end
+
+def fortran?
+  ARGV.include? '--enable-fortran'
+end
+
+def java?
+  ARGV.include? '--enable-java'
+end
+
+def objc?
+  ARGV.include? '--enable-objc'
+end
+
+def objcxx?
+  ARGV.include? '--enable-objcxx'
+end
+
+def build_everything?
+  ARGV.include? '--enable-all-languages'
+end
+
+def nls?
+  ARGV.include? '--enable-nls'
+end
+
+def profiledbuild?
+  ARGV.include? '--enable-profiled-build'
+end
+
+class Ecj < Formula
+  # Little Known Fact: ecj, Eclipse Java Complier, is required in order to
+  # produce a gcj compiler that can actually parse Java source code.
+  url 'ftp://sourceware.org/pub/java/ecj-4.5.jar'
+  md5 'd7cd6a27c8801e66cbaa964a039ecfdb'
+end
+
+class Gcc45 < Formula
+  homepage 'http://gcc.gnu.org'
+  url 'ftp://ftp.gnu.org/gnu/gcc/gcc-4.5.2/gcc-4.5.2.tar.bz2'
+  md5 'd6559145853fbaaa0fd7556ed93bce9a'
+
+  depends_on 'gmp'
+  depends_on 'libmpc'
+  depends_on 'mpfr'
+
+  def options
+    [
+      ['--enable-cxx', 'Build the g++ compiler'],
+      ['--enable-fortran', 'Build the gfortran compiler'],
+      ['--enable-java', 'Buld the gcj compiler'],
+      ['--enable-objc', 'Enable Objective-C language support'],
+      ['--enable-objcxx', 'Enable Objective-C++ language support'],
+      ['--enable-all-languages', 'Enable all compilers and languages, except Ada'],
+      ['--enable-nls', 'Build with natural language support'],
+      ['--enable-profiled-build', 'Make use of profile guided optimization when bootstrapping GCC']
+    ]
+  end
+
+  # Dont strip compilers.
+  skip_clean :all
+
+  def install
+    gmp = Formula.factory 'gmp'
+    mpfr = Formula.factory 'mpfr'
+    libmpc = Formula.factory 'libmpc'
+
+    # GCC will suffer build errors if forced to use a particular linker.
+    ENV.delete 'LD'
+
+    # Sandbox the GCC lib, libexec and include directories so they don't wander
+    # around telling small children there is no Santa Claus. This results in a
+    # partially keg-only brew following suggestions outlined in the "How to
+    # install multiple versions of GCC" section of the GCC FAQ:
+    #     http://gcc.gnu.org/faq.html#multiple
+    gcc_prefix = prefix + 'gcc'
+
+    args = [
+      # Sandbox everything...
+      "--prefix=#{gcc_prefix}",
+      # ...except the stuff in share...
+      "--datarootdir=#{share}",
+      # ...and the binaries...
+      "--bindir=#{bin}",
+      # ...which are tagged with a suffix to distinguish them.
+      "--program-suffix=-#{version.slice(/\d\.\d/)}",
+      "--with-gmp=#{gmp.prefix}",
+      "--with-mpfr=#{mpfr.prefix}",
+      "--with-mpc=#{libmpc.prefix}",
+      "--with-system-zlib",
+      "--enable-stage1-checking"
+    ]
+
+    args << '--disable-nls' unless nls?
+
+    if build_everything?
+      # Everything but Ada, which requires a pre-existing GCC Ada compiler
+      # (gnat) to bootstrap. GCC 4.6.0 will add go as a language option.
+      languages = %w[c c++ fortran java objc obj-c++]
+    else
+      # The C compiler is always built, but additional defaults can be added
+      # here.
+      languages = %w[c]
+
+      languages << 'c++' if cxx?
+      languages << 'fortran' if fortran?
+      languages << 'java' if java?
+      languages << 'objc' if objc?
+      languages << 'obj-c++' if objcxx?
+    end
+
+    if java? or build_everything?
+      source_dir = Pathname.new Dir.pwd
+
+      Ecj.new.brew do |ecj|
+        # Copying ecj.jar into the toplevel of the GCC source tree will cause
+        # gcc to automagically package it into the installation. It *must* be
+        # named ecj.jar and not ecj-version.jar in order for this to happen.
+        mv "ecj-#{ecj.version}.jar", (source_dir + 'ecj.jar')
+      end
+    end
+
+    Dir.mkdir 'build'
+    Dir.chdir 'build' do
+      system '../configure', "--enable-languages=#{languages.join(',')}", *args
+
+      if profiledbuild?
+        # Takes longer to build, may bug out. Provided for those who want to
+        # optimise all the way to 11.
+        system 'make profiledbootstrap'
+      else
+        system 'make bootstrap'
+      end
+
+      # At this point `make check` could be invoked to run the testsuite. The
+      # deja-gnu formula must be installed in order to do this.
+
+      system 'make install'
+    end
+  end
+end