homebrew-core/Formula/gnupg.rb

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require 'formula'
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class GnupgIdea < Formula
head 'http://www.gnupg.dk/contrib-dk/idea.c.gz', :using => NoUnzipCurlDownloadStrategy
md5 '9dc3bc086824a8c7a331f35e09a3e57f'
end
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class Gnupg < Formula
homepage 'http://www.gnupg.org/'
url 'ftp://ftp.gnupg.org/gcrypt/gnupg/gnupg-1.4.12.tar.bz2'
sha1 '9b78e20328d35525af7b8a9c1cf081396910e937'
def options
[
["--idea", "Build with (patented) IDEA cipher"],
["--8192", "Build with support for private keys up to 8192 bits"],
]
end
def install
if ENV.compiler == :clang
ENV.append 'CFLAGS', '-std=gnu89'
ENV.append 'CFLAGS', '-fheinous-gnu-extensions'
end
if ARGV.include? '--idea'
opoo "You are building with support for the patented IDEA cipher."
d=Pathname.getwd
GnupgIdea.new.brew { (d+'cipher').install Dir['*'] }
system 'gunzip', 'cipher/idea.c.gz'
end
inreplace 'g10/keygen.c', 'max=4096', 'max=8192' if ARGV.include? '--8192'
system "./configure", "--disable-dependency-tracking",
"--prefix=#{prefix}",
"--disable-asm"
system "make"
system "make check"
# we need to create these directories because the install target has the
# dependency order wrong
bin.mkpath
(libexec+'gnupg').mkpath
system "make install"
end
def caveats
if ARGV.include? '--idea'
<<-EOS.undent
Please read http://www.gnupg.org/faq/why-not-idea.en.html before doing so.
You will then need to add the following line to your ~/.gnupg/gpg.conf or
~/.gnupg/options file:
load-extension idea
EOS
end
end
end