I downgrade ppl again to the stable release, and I make gmp 4.3.2 the default

gmp; we can update all once we have stable ppl 0.11 and a working cloog-ppl
with all that.
This way we should at least gcc4.5 building with ppl/cloog-ppl


svn path=/nixpkgs/branches/stdenv-updates/; revision=22271

pkgs/development/libraries/gmp/4.nix

@@ -0,0 +1,52 @@
+{stdenv, fetchurl, m4, cxx ? true}:
+
+stdenv.mkDerivation rec {
+  name = "gmp-4.3.2";
+
+  src = fetchurl {
+    url = "mirror://gnu/gmp/${name}.tar.bz2";
+    sha256 = "0x8prpqi9amfcmi7r4zrza609ai9529pjaq0h4aw51i867064qck";
+  };
+
+  buildNativeInputs = [m4];
+
+  # Prevent the build system from using sub-architecture-specific
+  # instructions (e.g., SSE2 on i686).
+  preConfigure = "ln -sf configfsf.guess config.guess";
+
+  configureFlags = if cxx then "--enable-cxx" else "--disable-cxx";
+
+  doCheck = true;
+
+  meta = {
+    description = "GMP, the GNU multiple precision arithmetic library";
+
+    longDescription =
+      '' GMP is a free library for arbitrary precision arithmetic, operating
+         on signed integers, rational numbers, and floating point numbers.
+         There is no practical limit to the precision except the ones implied
+         by the available memory in the machine GMP runs on.  GMP has a rich
+         set of functions, and the functions have a regular interface.
+
+         The main target applications for GMP are cryptography applications
+         and research, Internet security applications, algebra systems,
+         computational algebra research, etc.
+
+         GMP is carefully designed to be as fast as possible, both for small
+         operands and for huge operands.  The speed is achieved by using
+         fullwords as the basic arithmetic type, by using fast algorithms,
+         with highly optimised assembly code for the most common inner loops
+         for a lot of CPUs, and by a general emphasis on speed.
+
+         GMP is faster than any other bignum library.  The advantage for GMP
+         increases with the operand sizes for many operations, since GMP uses
+         asymptotically faster algorithms.
+      '';
+
+    homepage = http://gmplib.org/;
+    license = "LGPLv3+";
+
+    maintainers = [ stdenv.lib.maintainers.ludo ];
+    platforms = stdenv.lib.platforms.all;
+  };
+}