libunistring: Patch for Xcode-only on 10.8

Closes Homebrew/homebrew#16107.

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

Formula/libunistring.rb

@@ -6,8 +6,36 @@ class Libunistring < Formula
   homepage 'http://www.gnu.org/software/libunistring/'
   sha1 'e1ea13c24a30bc93932d19eb5ad0704a618506dd'
 
+  def patches
+    # Submitted upstream: https://savannah.gnu.org/bugs/?37751
+    # I am not 100% sure if this is the right patch because libunistring
+    # provides its own stdint.h (and stdint.mini.h) which wraps the system's
+    # version of these files (in a complicated manner). This is fragile.
+    DATA unless MacOS::CLT.installed?
+  end
+
   def install
     system "./configure", "--prefix=#{prefix}", "--disable-dependency-tracking"
+    system "make"
+    # system "make check"  # Maintainers, you might want to do the check
     system "make install"
   end
 end
+
+__END__
+diff --git a/lib/stdint.mini.h b/lib/stdint.mini.h
+index d6f2cb0..3c0acc8 100644
+--- a/lib/stdint.mini.h
++++ b/lib/stdint.mini.h
+@@ -118,11 +118,6 @@ typedef unsigned int unistring_uint32_t;
+ #define int32_t unistring_int32_t
+ #define uint32_t unistring_uint32_t
+ 
+-/* Avoid collision with Solaris 2.5.1 <pthread.h> etc.  */
+-#define _UINT8_T
+-#define _UINT32_T
+-#define _UINT64_T
+-
+ 
+ #endif /* _UNISTRING_STDINT_H */
+ #endif /* !defined _UNISTRING_STDINT_H && !defined _GL_JUST_INCLUDE_SYSTEM_STDINT_H */