gmp: allow building with Xcode 4.2

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

1 files changed, 42 insertions, 1 deletions

diff --git a/Library/Formula/gmp.rb b/Library/Formula/gmp.rb
index aafb81152..b8db0da49 100644
--- a/Library/Formula/gmp.rb
+++ b/Library/Formula/gmp.rb
@@ -13,11 +13,20 @@ class Gmp < Formula
     ]
   end
 
+  # Fixes make check for xcode 4.2. See:
+  # http://gmplib.org/list-archives/gmp-bugs/2011-July/002308.html
+  def patches
+    DATA if MacOS.xcode_version >= "4.2"
+  end
+
   def install
     # Reports of problems using gcc 4.0 on Leopard
     # https://github.com/mxcl/homebrew/issues/issue/2302
     # Also force use of 4.2 on 10.6 in case a user has changed the default
-    ENV.gcc_4_2
+    # Do not force if xcode > 4.2 since it does not have /usr/bin/gcc-4.2 as default
+    unless MacOS.xcode_version >= "4.2"
+      ENV.gcc_4_2
+    end
 
     args = ["--prefix=#{prefix}", "--enable-cxx"]
 
@@ -41,3 +50,35 @@ class Gmp < Formula
     system "make check" unless ARGV.include? "--skip-check"
   end
 end
+
+__END__
+diff --git a/acinclude.m4 b/acinclude.m4
+index 699dd7b..87b5f6f 100644
+--- a/acinclude.m4
++++ b/acinclude.m4
+@@ -1941,8 +1941,8 @@ X86_PATTERN | x86_64-*-*)
+ esac
+ 
+ cat >conftest.c <<EOF
+-extern const int foo[];		/* Suppresses C++'s suppression of foo */
+-const int foo[] = {1,2,3};
++extern const int foo[[]];		/* Suppresses C++'s suppression of foo */
++const int foo[[]] = {1,2,3};
+ EOF
+ echo "Test program:" >&AC_FD_CC
+ cat conftest.c >&AC_FD_CC
+diff --git a/configure b/configure
+index 07b9fda..f6df8cd 100755
+--- a/configure
++++ b/configure
+@@ -26446,8 +26446,8 @@ i?86*-*-* | k[5-8]*-*-* | pentium*-*-* | athlon-*-* | viac3*-*-* | geode*-*-* |
+ esac
+ 
+ cat >conftest.c <<EOF
+-extern const int foo;		/* Suppresses C++'s suppression of foo */
+-const int foo = {1,2,3};
++extern const int foo[];		/* Suppresses C++'s suppression of foo */
++const int foo[] = {1,2,3};
+ EOF
+ echo "Test program:" >&5
+ cat conftest.c >&5