Add option to python formula to remove poll

Apple's implementation of poll does not support devices, which causes socket
operations that rely on a properly functioning poll to fail with Errno 35 [2].
This creates an option to strip out poll entirely, which is what Apple does
for the binaries they package with the OS [1].

1: https://svn.macports.org/ticket/18376
2: http://bugs.python.org/issue5154
Signed-off-by: Adam Vandenberg <flangy@gmail.com>

1 files changed, 8 insertions, 1 deletions

diff --git a/Library/Formula/python.rb b/Library/Formula/python.rb
index cf17b0292..d7d22790c 100644
--- a/Library/Formula/python.rb
+++ b/Library/Formula/python.rb
@@ -14,6 +14,7 @@ There are a few options for customzing the build.
   --universal: Builds combined 32-/64-bit Intel binaries.
   --framework: Builds a "Framework" version of Python.
   --static:    Builds static instead of shared libraries.
+  --no-poll:   Don't include Apple's broken poll implementation.
 
 site-packages
 -------------
@@ -60,7 +61,8 @@ class Python < Formula
     [
       ["--framework", "Do a 'Framework' build instead of a UNIX-style build."],
       ["--universal", "Build for both 32 & 64 bit Intel."],
-      ["--static", "Build static libraries."]
+      ["--static", "Build static libraries."],
+      ["--no-poll", "Remove HAVE_POLL.* options from build."]
     ]
   end
 
@@ -121,6 +123,11 @@ class Python < Formula
       '#sqlite_defines.append(("SQLITE_OMIT_LOAD_EXTENSION", "1"))'
 
     system "./configure", *args
+
+    if ARGV.include? '--no-poll'
+      inreplace 'pyconfig.h', /.*?(HAVE_POLL[_A-Z]*).*/, '#undef \1'
+    end
+
     system "make"
     ENV.j1 # Installs must be serialized
     system "make install"