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require 'formula'
# Was a Framework build requested?
def build_framework?; ARGV.include? '--framework'; end
# Are we installed or installing as a Framework?
def as_framework?
(self.installed? and File.exists? prefix+"Frameworks/Python.framework") or build_framework?
end
class Python31 < Formula
url 'http://www.python.org/ftp/python/3.1.3/Python-3.1.3.tar.bz2'
homepage 'http://www.python.org/'
md5 'ad5e5f1c07e829321e0a015f8cafe245'
depends_on 'readline' => :optional # Prefer over OS X's libedit
depends_on 'sqlite' => :optional # Prefer over OS X's older version
depends_on 'gdbm' => :optional
def options
[
["--framework", "Do a 'Framework' build instead of a UNIX-style build."],
["--universal", "Build for both 32 & 64 bit Intel."],
["--static", "Build static libraries."]
]
end
skip_clean ['bin', 'lib']
def site_packages
# The Cellar location of site-packages
if as_framework?
# If we're installed or installing as a Framework, then use that location.
return prefix+"Frameworks/Python.framework/Versions/3.1/lib/python3.1/site-packages"
else
# Otherwise, use just the lib path.
return lib+"python3.1/site-packages"
end
end
def prefix_site_packages
# The HOMEBREW_PREFIX location of site-packages
HOMEBREW_PREFIX+"lib/python3.1/site-packages"
end
def install
# --with-computed-gotos requires addressable labels in C;
# both gcc and LLVM support this, so switch it on.
args = ["--prefix=#{prefix}", "--with-computed-gotos"]
if ARGV.include? '--universal'
args << "--enable-universalsdk=/" << "--with-universal-archs=intel"
end
if build_framework?
args << "--enable-framework=#{prefix}/Frameworks"
else
args << "--enable-shared" unless ARGV.include? '--static'
end
system "./configure", *args
system "make"
ENV.j1 # Installs must be serialized
system "make install"
# Add the Homebrew prefix path to site-packages via a .pth
prefix_site_packages.mkpath
(site_packages+"homebrew.pth").write prefix_site_packages
end
def caveats
<<-EOS.undent
The site-packages folder for this Python is:
#{site_packages}
We've added a "homebrew.pth" file to also include:
#{prefix_site_packages}
EOS
end
end