Ticket #31604: Portfile.diff

Portfile

@@ -12 +12 @@
 set patch_level     3
 version             ${base_version}-p${patch_level}
 #version             ${base_version}
+revision                    1
 categories          devel math
 platforms           darwin
 license             LGPL-3+
@@ -62 +63 @@
     patchfiles-append patch[format %02d ${i}]
 }
 
-# When mpfr is built with clang, trying to build gcc44/gcc45 eats up all system memory and crashes.
-if {${configure.compiler} == "clang"} {
-    configure.compiler llvm-gcc-4.2
-}
+# Due to radr://10291355 (llvm.org PR11111), the new tls support enabled in clang with Xcode 4.2 miscompiles mpfr. While this was fixed in Xcode 4.2.1, as the ttls support was never used prior to Xcode 4.2, the generic fix is to pass --disable-thread-safe to configure.
+
+configure.args  --disable-thread-safe
 
 test.run        yes
 test.target     check