require 'formula' class Emacs < Formula homepage 'http://www.gnu.org/software/emacs/' url 'http://ftpmirror.gnu.org/emacs/emacs-24.3.tar.gz' mirror 'http://ftp.gnu.org/pub/gnu/emacs/emacs-24.3.tar.gz' sha256 '0098ca3204813d69cd8412045ba33e8701fa2062f4bff56bedafc064979eef41' option "cocoa", "Build a Cocoa version of emacs" option "srgb", "Enable sRGB colors in the Cocoa version of emacs" option "with-x", "Include X11 support" option "use-git-head", "Use Savannah git mirror for HEAD builds" option "keep-ctags", "Don't remove the ctags executable that emacs provides" if build.include? "use-git-head" head 'http://git.sv.gnu.org/r/emacs.git' else head 'bzr://http://bzr.savannah.gnu.org/r/emacs/trunk' end if build.head? or build.include? "cocoa" depends_on :autoconf depends_on :automake end depends_on :x11 if build.include? "with-x" fails_with :llvm do build 2334 cause "Duplicate symbol errors while linking." end # Follow MacPorts and don't install ctags from Emacs. This allows Vim # and Emacs and ctags to play together without violence. def do_not_install_ctags unless build.include? "keep-ctags" (bin/"ctags").unlink (share/man/man1/"ctags.1.gz").unlink end end def install # HEAD builds are currently blowing up when built in parallel # as of April 20 2012 ENV.j1 if build.head? args = ["--prefix=#{prefix}", "--without-dbus", "--enable-locallisppath=#{HOMEBREW_PREFIX}/share/emacs/site-lisp", "--infodir=#{info}/emacs"] # See: https://github.com/mxcl/homebrew/issues/4852 if build.head? and File.exists? "./autogen/copy_autogen" system "autogen/copy_autogen" end if build.include? "cocoa" # Patch for color issues described here: # http://debbugs.gnu.org/cgi/bugreport.cgi?bug=8402 if build.include? "srgb" inreplace "src/nsterm.m", "*col = [NSColor colorWithCalibratedRed: r green: g blue: b alpha: 1.0];", "*col = [NSColor colorWithDeviceRed: r green: g blue: b alpha: 1.0];" end args << "--with-ns" << "--disable-ns-self-contained" system "./configure", *args system "make bootstrap" system "make install" prefix.install "nextstep/Emacs.app" # Don't cause ctags clash. do_not_install_ctags # Replace the symlink with one that avoids starting Cocoa. (bin/"emacs").unlink # Kill the existing symlink (bin/"emacs").write <<-EOS.undent #!/bin/bash #{prefix}/Emacs.app/Contents/MacOS/Emacs -nw "$@" EOS (bin/"emacs").chmod 0755 else if build.include? "with-x" # These libs are not specified in xft's .pc. See: # https://trac.macports.org/browser/trunk/dports/editors/emacs/Portfile#L74 # https://github.com/mxcl/homebrew/issues/8156 ENV.append 'LDFLAGS', '-lfreetype -lfontconfig' args << "--with-x" args << "--with-gif=no" << "--with-tiff=no" << "--with-jpeg=no" else args << "--without-x" end system "./configure", *args system "make" system "make install" # Don't cause ctags clash. do_not_install_ctags end end def caveats s = "" if build.include? "cocoa" s += <<-EOS.undent Emacs.app was installed to: #{prefix} To link the application to a normal Mac OS X location: brew linkapps or: ln -s #{prefix}/Emacs.app /Applications A command line wrapper for the cocoa app was installed to: #{bin}/emacs EOS end s += <<-EOS.undent Because the official bazaar repository might be slow, we include an option for pulling HEAD from an unofficial Git mirror: brew install emacs --HEAD --use-git-head There is inevitably some lag between checkins made to the official Emacs bazaar repository and their appearance on the Savannah mirror. See http://git.savannah.gnu.org/cgit/emacs.git for the mirror's status. The Emacs devs do not provide support for the git mirror, and they might reject bug reports filed with git version information. Use it at your own risk. Emacs creates an executable `ctags` that stomps on exuberant-ctags. In order to prevent that, we remove `ctags` and its manpage from the emacs build before linking. (Add the flag "--keep-ctags" to keep it.) You can install exuberant-ctags via brew with `brew install ctags`. (exuberant-ctags can provide both vim-style and emacs-style tags.) EOS return s end end