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# Copyright 2009 Max Howell <max@methylblue.com>
#
# This file is part of Homebrew.
#
# Homebrew is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Homebrew is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with Homebrew. If not, see <http://www.gnu.org/licenses/>.
#
require 'osx/cocoa' # to get number of cores
require 'formula'
require 'hw.model'
ENV['MACOSX_DEPLOYMENT_TARGET']='10.5'
ENV['CFLAGS']='-O3 -w -pipe -fomit-frame-pointer -mmacosx-version-min=10.5'
ENV['LDFLAGS']='' # to be consistent, we ignore the environment usually already
# optimise all the way to eleven, references:
# http://en.gentoo-wiki.com/wiki/Safe_Cflags/Intel
# http://forums.mozillazine.org/viewtopic.php?f=12&t=577299
# http://gcc.gnu.org/onlinedocs/gcc-4.2.1/gcc/i386-and-x86_002d64-Options.html
case hw_model
when :core1
# Core DUO is a 32 bit chip
ENV['CFLAGS']="#{ENV['CFLAGS']} -march=prescott -mfpmath=sse -msse3 -mmmx"
when :core2
# Core 2 DUO is a 64 bit chip
# GCC 4.3 will have a -march=core2, but for now nocona is correct
ENV['CFLAGS']="#{ENV['CFLAGS']} -march=nocona -mfpmath=sse -msse3 -mmmx"
# OK so we're not doing 64 bit yet... but we will with Snow Leopard
# -mfpmath=sse defaults to on for the x64 compiler
#ENV['CFLAGS']="#{ENV['CFLAGS']} -march=nocona -msse3 -mmmx -m64"
#ENV['LDFLAGS']="-arch x86_64"
when :xeon
# TODO what optimisations for xeon?
when :ppc then abort "Sorry, Homebrew does not support PowerPC architectures"
when :dunno then abort "Sorry, Homebrew cannot determine what kind of Mac this is!"
end
ENV['CXXFLAGS']=ENV['CFLAGS']
# lets use gcc 4.2, it is newer and "better", at least I believe so, mail me
# if I'm wrong
ENV['CC']='gcc-4.2'
ENV['CXX']='g++-4.2'
ENV['MAKEFLAGS']="-j#{OSX::NSProcessInfo.processInfo.processorCount}"
unless HOMEBREW_PREFIX.to_s == '/usr/local'
ENV['CPPFLAGS']="-I#{HOMEBREW_PREFIX}/include"
ENV['LDFLAGS']="-L#{HOMEBREW_PREFIX}/lib"
end
# you can use these functions for packages that have build issues
module HomebrewEnvExtension
def deparallelize
remove 'MAKEFLAGS', /-j\d+/
end
def gcc_4_0_1
self['CC']=nil
self['CXX']=nil
end
def osx_10_4
self['MACOSX_DEPLOYMENT_TARGET']=nil
remove_from_cflags(/ ?-mmacosx-version-min=10\.\d/)
end
def generic_i386
%w[-mfpmath=sse -msse3 -mmmx -march=\w+].each {|s| remove_from_cflags s}
end
def libxml2
self['CXXFLAGS']=self['CFLAGS']+=' -I/usr/include/libxml2'
end
def libpng
append 'CPPFLAGS', '-I/usr/X11R6/include'
append 'LDFLAGS', '-L/usr/X11R6/lib'
end
# we've seen some packages fail to build when warnings are disabled!
def enable_warnings
remove_from_cflags '-w'
end
private
def append key, value
ref=self[key]
if ref.nil? or ref.empty?
self[key]=value
else
self[key]=ref+' '+value
end
end
def remove key, rx
return if self[key].nil?
# sub! doesn't work as "the string is frozen"
self[key]=self[key].sub rx, ''
self[key]=nil if self[key].empty? # keep things clean
end
def remove_from_cflags rx
%w[CFLAGS CXXFLAGS].each {|key| remove key, rx}
end
end
ENV.extend HomebrewEnvExtension
# remove MacPorts and Fink from the PATH, this prevents issues like:
# http://github.com/mxcl/homebrew/issues/#issue/13
paths=ENV['PATH'].split(':').reject do |p|
p.squeeze! '/'
p=~%r[^/opt/local] or p=~%r[^/sw]
end
ENV['PATH']=paths*':'
def inreplace(path, before, after)
before=Regexp.escape before.to_s
before.gsub! "/", "\\/" # I guess not escaped as delimiter varies
after=after.to_s
after.gsub! "\\", "\\\\"
after.gsub! "/", "\\/"
# TODO this sucks
# either use 'ed', or allow regexp and use a proper ruby function
Kernel.system "perl", "-pi", "-e", "s/#{before}/#{after}/g", path
end
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