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require 'os/mac'
require 'extend/ENV/shared'
### Why `superenv`?
# 1) Only specify the environment we need (NO LDFLAGS for cmake)
# 2) Only apply compiler specific options when we are calling that compiler
# 3) Force all incpaths and libpaths into the cc instantiation (less bugs)
# 4) Cater toolchain usage to specific Xcode versions
# 5) Remove flags that we don't want or that will break builds
# 6) Simpler code
# 7) Simpler formula that *just work*
# 8) Build-system agnostic configuration of the tool-chain
module Superenv
include SharedEnvExtension
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attr_accessor :keg_only_deps, :deps, :x11
alias_method :x11?, :x11
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def self.extended(base)
base.keg_only_deps = []
base.deps = []
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# Many formula assume that CFLAGS etc. will not be nil. This should be
# a safe hack to prevent that exception cropping up. Main consequence of
# this is that self['CFLAGS'] is never nil even when it is which can break
# if checks, but we don't do such a check in our code. Redefinition must be
# done on the singleton class, because in MRI all ENV methods are defined
# on its singleton class, precluding the use of extend.
class << base
def [] key
if has_key? key
fetch(key)
elsif %w{CPPFLAGS CFLAGS LDFLAGS}.include? key
self[key] = ""
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end
end
end
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end
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def self.bin
@bin ||= (HOMEBREW_REPOSITORY/"Library/ENV").children.reject{|d| d.basename.to_s > MacOS::Xcode.version }.max
end
def reset
%w{CC CXX OBJC OBJCXX CPP MAKE LD LDSHARED
CFLAGS CXXFLAGS OBJCFLAGS OBJCXXFLAGS LDFLAGS CPPFLAGS
MACOS_DEPLOYMENT_TARGET SDKROOT
CMAKE_PREFIX_PATH CMAKE_INCLUDE_PATH CMAKE_FRAMEWORK_PATH
CPATH C_INCLUDE_PATH CPLUS_INCLUDE_PATH OBJC_INCLUDE_PATH}.
each{ |x| delete(x) }
delete('CDPATH') # avoid make issues that depend on changing directories
delete('GREP_OPTIONS') # can break CMake
delete('CLICOLOR_FORCE') # autotools doesn't like this
end
def setup_build_environment(formula=nil)
reset
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self.cc = 'cc'
self.cxx = 'c++'
self['HOMEBREW_CC'] = determine_cc
validate_cc!(formula) unless formula.nil?
self['DEVELOPER_DIR'] = determine_developer_dir
self['MAKEFLAGS'] ||= "-j#{determine_make_jobs}"
self['PATH'] = determine_path
self['PKG_CONFIG_PATH'] = determine_pkg_config_path
self['PKG_CONFIG_LIBDIR'] = determine_pkg_config_libdir
self['HOMEBREW_CCCFG'] = determine_cccfg
self['HOMEBREW_BREW_FILE'] = HOMEBREW_BREW_FILE
self['HOMEBREW_SDKROOT'] = "#{MacOS.sdk_path}" if MacOS::Xcode.without_clt?
self['HOMEBREW_DEVELOPER_DIR'] = determine_developer_dir # used by our xcrun shim
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self['HOMEBREW_VERBOSE'] = "1" if ARGV.verbose?
self['CMAKE_PREFIX_PATH'] = determine_cmake_prefix_path
self['CMAKE_FRAMEWORK_PATH'] = determine_cmake_frameworks_path
self['CMAKE_INCLUDE_PATH'] = determine_cmake_include_path
self['CMAKE_LIBRARY_PATH'] = determine_cmake_library_path
self['ACLOCAL_PATH'] = determine_aclocal_path
# For custom bottles, need to specify the arch in the environment
# so that the compiler shims have access
if (arch = ARGV.bottle_arch)
self['HOMEBREW_ARCHFLAGS'] = Hardware::CPU.optimization_flags[arch]
end
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# The HOMEBREW_CCCFG ENV variable is used by the ENV/cc tool to control
# compiler flag stripping. It consists of a string of characters which act
# as flags. Some of these flags are mutually exclusive.
#
# u - A universal build was requested
# 3 - A 32-bit build was requested
# b - Installing from a bottle
# c - Installing from a bottle with a custom architecture
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# i - Installing from a bottle on Intel
# 6 - Installing from a bottle on 64-bit Intel
# p - Installing from a bottle on PPC
# A - Installing from a bottle on PPC with Altivec
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# O - Enables argument refurbishing. Only active under the
# make/bsdmake wrappers currently.
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#
# On 10.8 and newer, these flags will also be present:
# s - apply fix for sed's Unicode support
# a - apply fix for apr-1-config path
warn_about_non_apple_gcc($1) if ENV['HOMEBREW_CC'] =~ GNU_GCC_REGEXP
end
def universal_binary
self['HOMEBREW_ARCHS'] = Hardware::CPU.universal_archs.join(',')
append 'HOMEBREW_CCCFG', "u", ''
end
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# m32 on superenv does not add any CC flags. It prevents "-m32" from being erased.
def m32
append 'HOMEBREW_CCCFG', "3", ''
end
private
def determine_cc
cc = compiler
COMPILER_SYMBOL_MAP.invert.fetch(cc, cc)
end
def determine_path
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paths = [Superenv.bin]
if MacOS::Xcode.without_clt?
paths << "#{MacOS::Xcode.prefix}/usr/bin"
paths << "#{MacOS::Xcode.prefix}/Toolchains/XcodeDefault.xctoolchain/usr/bin"
end
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paths += deps.map{|dep| "#{HOMEBREW_PREFIX}/opt/#{dep}/bin" }
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paths << MacOS::X11.bin if x11?
paths += %w{/usr/bin /bin /usr/sbin /sbin}
# Homebrew's apple-gcc42 will be outside the PATH in superenv,
# so xcrun may not be able to find it
if self['HOMEBREW_CC'] == 'gcc-4.2'
apple_gcc42 = begin
Formulary.factory('apple-gcc42')
rescue Exception # in --debug, catch bare exceptions too
nil
end
paths << apple_gcc42.opt_prefix/'bin' if apple_gcc42
end
if self['HOMEBREW_CC'] =~ GNU_GCC_REGEXP
gcc_name = 'gcc' + $1.delete('.')
gcc = Formulary.factory(gcc_name)
paths << gcc.opt_prefix/'bin'
end
paths.to_path_s
end
def determine_pkg_config_path
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paths = deps.map{|dep| "#{HOMEBREW_PREFIX}/opt/#{dep}/lib/pkgconfig" }
paths += deps.map{|dep| "#{HOMEBREW_PREFIX}/opt/#{dep}/share/pkgconfig" }
paths.to_path_s
end
def determine_pkg_config_libdir
paths = %W{/usr/lib/pkgconfig #{HOMEBREW_REPOSITORY}/Library/ENV/pkgconfig/#{MacOS.version}}
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paths << "#{MacOS::X11.lib}/pkgconfig" << "#{MacOS::X11.share}/pkgconfig" if x11?
paths.to_path_s
end
def determine_cmake_prefix_path
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paths = keg_only_deps.map{|dep| "#{HOMEBREW_PREFIX}/opt/#{dep}" }
paths << HOMEBREW_PREFIX.to_s # put ourselves ahead of everything else
paths << "#{MacOS.sdk_path}/usr" if MacOS::Xcode.without_clt?
paths.to_path_s
end
def determine_cmake_frameworks_path
# XXX: keg_only_deps perhaps? but Qt does not link its Frameworks because of Ruby's Find.find ignoring symlinks!!
paths = deps.map{|dep| "#{HOMEBREW_PREFIX}/opt/#{dep}/Frameworks" }
paths << "#{MacOS.sdk_path}/System/Library/Frameworks" if MacOS::Xcode.without_clt?
paths.to_path_s
end
def determine_cmake_include_path
sdk = MacOS.sdk_path if MacOS::Xcode.without_clt?
paths = []
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paths << "#{MacOS::X11.include}/freetype2" if x11?
paths << "#{sdk}/usr/include/libxml2" unless deps.include? 'libxml2'
paths << "#{sdk}/usr/include/apache2" if MacOS::Xcode.without_clt?
paths << "#{sdk}/System/Library/Frameworks/OpenGL.framework/Versions/Current/Headers" unless x11?
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paths << MacOS::X11.include if x11?
paths.to_path_s
end
def determine_cmake_library_path
sdk = MacOS.sdk_path if MacOS::Xcode.without_clt?
paths = []
# things expect to find GL headers since X11 used to be a default, so we add them
paths << "#{sdk}/System/Library/Frameworks/OpenGL.framework/Versions/Current/Libraries" unless x11?
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paths << MacOS::X11.lib if x11?
paths.to_path_s
end
def determine_aclocal_path
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paths = keg_only_deps.map{|dep| "#{HOMEBREW_PREFIX}/opt/#{dep}/share/aclocal" }
paths << "#{HOMEBREW_PREFIX}/share/aclocal"
paths << "#{MacOS::X11.share}/aclocal" if x11?
paths.to_path_s
end
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def determine_make_jobs
if (j = self['HOMEBREW_MAKE_JOBS'].to_i) < 1
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Hardware::CPU.cores
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else
j
end
end
def determine_cccfg
s = ""
if ARGV.build_bottle?
s << if ARGV.bottle_arch
'bc'
elsif Hardware::CPU.type == :intel
if Hardware::CPU.is_64_bit?
'bi6'
else
'bi'
end
elsif Hardware::CPU.type == :ppc
if Hardware::CPU.altivec?
'bpA'
else
'bp'
end
else
'b'
end
end
# Fix issue with sed barfing on unicode characters on Mountain Lion
s << 's' if MacOS.version >= :mountain_lion
# Fix issue with >= 10.8 apr-1-config having broken paths
s << 'a' if MacOS.version >= :mountain_lion
s
end
def determine_developer_dir
# If Xcode path is fucked then this is basically a fix. In the case where
# nothing is valid, it still fixes most usage to supply a valid path that
# is not "/".
MacOS::Xcode.prefix || self['DEVELOPER_DIR']
end
public
### NO LONGER NECESSARY OR NO LONGER SUPPORTED
def noop(*args); end
%w[m64 gcc_4_0_1 fast O4 O3 O2 Os Og O1 libxml2 minimal_optimization
no_optimization enable_warnings x11
set_cpu_flags
macosxsdk remove_macosxsdk].each{|s| alias_method s, :noop }
### DEPRECATE THESE
def deparallelize
delete('MAKEFLAGS')
end
alias_method :j1, :deparallelize
def gcc
self['HOMEBREW_CC'] = "gcc-4.2"
@compiler = :gcc
end
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def gcc_4_0
self['HOMEBREW_CC'] = "gcc-4.0"
@compiler = :gcc_4_0
end
def llvm
self['HOMEBREW_CC'] = "llvm-gcc"
@compiler = :llvm
end
def clang
self['HOMEBREW_CC'] = "clang"
@compiler = :clang
end
GNU_GCC_VERSIONS.each do |n|
define_method(:"gcc-4.#{n}") do
@compiler = self['HOMEBREW_CC'] = "gcc-4.#{n}"
end
end
def make_jobs
self['MAKEFLAGS'] =~ /-\w*j(\d)+/
[$1.to_i, 1].max
end
end
class Array
def to_path_s
map(&:to_s).uniq.select{|s| File.directory? s }.join(File::PATH_SEPARATOR).chuzzle
end
end