zeromq universal build with "--universal"

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 32 insertions, 3 deletions

diff --git a/Library/Formula/zeromq.rb b/Library/Formula/zeromq.rb
index 4c03bba14..db678782e 100644
--- a/Library/Formula/zeromq.rb
+++ b/Library/Formula/zeromq.rb
@@ -5,15 +5,44 @@ class Zeromq <Formula
   homepage 'http://www.zeromq.org/'
   md5 'eadda72ecc5bcfa50a521436e6d92252'
 
+  def options
+    [['--universal', 'Build as a Universal Intel binary.']]
+  end
+
+  def build_fat
+    # make 32-bit
+    arch = "-arch i386"
+    system "CFLAGS=\"$CFLAGS #{arch}\" CXXFLAGS=\"$CXXFLAGS #{arch}\" ./configure --disable-dependency-tracking --prefix=#{prefix}"
+    system "make"
+    system "mv src/.libs src/libs-32"
+    system "make clean"
+
+    # make 64-bit
+    arch = "-arch x86_64"
+    system "CFLAGS=\"$CFLAGS #{arch}\" CXXFLAGS=\"$CXXFLAGS #{arch}\" ./configure --disable-dependency-tracking --prefix=#{prefix}"
+    system "make"
+    system "mv src/.libs/libzmq.0.dylib src/.libs/libzmq.64.dylib"
+
+    # merge UB
+    system "lipo", "-create", "src/libs-32/libzmq.0.dylib", "src/.libs/libzmq.64.dylib", "-output", "src/.libs/libzmq.0.dylib"
+  end
+
   def install
     fails_with_llvm "Compiling with LLVM gives a segfault while linking."
-    system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
+
+    if ARGV.include? '--universal'
+      build_fat
+    else
+      system "./configure", "--disable-dependency-tracking", "--prefix=#{prefix}"
+    end
+
     system "make install"
   end
 
   def caveats; <<-EOS.undent
-    To install the zmq gem on Snow Leopard, on a 64-bit machine:
+    To install the zmq gem on 10.6 with the system Ruby on a 64-bit machine,
+    you may need to do:
       $ ARCHFLAGS="-arch x86_64" gem install zmq -- --with-zmq-dir=#{HOMEBREW_PREFIX}
     EOS
   end
-end
+end
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