libffi: 3.0.13 -> 3.2.1

pkgs/development/libraries/libffi/default.nix

···
 { fetchurl, stdenv, dejagnu }:
 
 stdenv.mkDerivation rec {
-  name = "libffi-3.0.13";
+  name = "libffi-3.2.1";
 
   src = fetchurl {
     url = "ftp://sourceware.org/pub/libffi/${name}.tar.gz";
-    sha256 = "077ibkf84bvcd6rw1m6jb107br63i2pp301rkmsbgg6300adxp8x";
+    sha256 = "0dya49bnhianl0r65m65xndz6ls2jn1xngyn72gd28ls3n7bnvnh";
   };
-
-  patches = stdenv.lib.optional (stdenv.needsPax) ./libffi-3.0.13-emutramp_pax_proc.patch;
 
   buildInputs = stdenv.lib.optional doCheck dejagnu;
 
   configureFlags = [
     "--with-gcc-arch=generic" # no detection of -march= or -mtune=
-  ] ++ stdenv.lib.optional (stdenv.needsPax) "--enable-pax_emutramp";
+    "--enable-pax_emutramp"
+  ];
 
-  #doCheck = stdenv.isLinux; # until we solve dejagnu problems on darwin and expect on BSD
-  doCheck = false;
+  doCheck = stdenv.isLinux; # until we solve dejagnu problems on darwin and expect on BSD
 
   dontStrip = stdenv ? cross; # Don't run the native `strip' when cross-compiling.
 

pkgs/development/libraries/libffi/libffi-3.0.13-emutramp_pax_proc.patch

···
-2013-05-22  Magnus Granberg  <[e-mail]>
-
-	#457194
-	* src/closuer.c (emutramp_enabled_check): Check with /proc.
-
---- a/src/closures.c	2013-03-17 23:27:11.000000000 +0100
-+++ b/src/closures.c	2013-04-29 23:26:02.279022022 +0200
-@@ -181,10 +181,26 @@ static int emutramp_enabled = -1;
- static int
- emutramp_enabled_check (void)
- {
--  if (getenv ("FFI_DISABLE_EMUTRAMP") == NULL)
--    return 1;
--  else
-+  char *buf = NULL;
-+  size_t len = 0;
-+  FILE *f;
-+  int ret;
-+  f = fopen ("/proc/self/status", "r");
-+  if (f == NULL)
-     return 0;
-+  ret = 0;
-+
-+  while (getline (&buf, &len, f) != -1)
-+    if (!strncmp (buf, "PaX:", 4))
-+      {
-+        char emutramp;
-+        if (sscanf (buf, "%*s %*c%c", &emutramp) == 1)
-+          ret = (emutramp == 'E');
-+        break;
-+      }
-+  free (buf);
-+  fclose (f);
-+  return ret;
- }
- 
- #define is_emutramp_enabled() (emutramp_enabled >= 0 ? emutramp_enabled \