boost: update to version 1.50.0

pkgs/development/libraries/boost/1.50-headers.nix

@@ -0,0 +1,26 @@
+{ stdenv, fetchurl }:
+
+stdenv.mkDerivation {
+  name = "boost-1.50.0-headers";
+
+  src = fetchurl {
+    url = "mirror://sourceforge/boost/boost_1_50_0.tar.bz2";
+    sha256 = "0ac5b82g6b5pdhzypgddql0i3i9vvrwf9iqp3lyp19hzr2wf5b69";
+  };
+
+  phases = [ "installPhase" ];
+
+  installPhase = ''
+    mkdir -p $out/include
+    tar xvf $src -C $out/include --strip-components=1 boost_1_50_0/boost
+  '';
+
+  meta = {
+    homepage = "http://boost.org/";
+    description = "Boost C++ Library Collection";
+    license = "boost-license";
+
+    platforms = stdenv.lib.platforms.unix;
+    maintainers = [ stdenv.lib.maintainers.viric stdenv.lib.maintainers.simons ];
+  };
+}

pkgs/development/libraries/boost/1.50.nix

@@ -0,0 +1,88 @@
+{ stdenv, fetchurl, icu, expat, zlib, bzip2, python
+, enableRelease ? true
+, enableDebug ? false
+, enableSingleThreaded ? false
+, enableMultiThreaded ? true
+, enableShared ? true
+, enableStatic ? false
+, enablePIC ? false
+, enableExceptions ? false
+}:
+
+let
+
+  variant = stdenv.lib.concatStringsSep ","
+    (stdenv.lib.optional enableRelease "release" ++
+     stdenv.lib.optional enableDebug "debug");
+
+  threading = stdenv.lib.concatStringsSep ","
+    (stdenv.lib.optional enableSingleThreaded "single" ++
+     stdenv.lib.optional enableMultiThreaded "multi");
+
+  link = stdenv.lib.concatStringsSep ","
+    (stdenv.lib.optional enableShared "shared" ++
+     stdenv.lib.optional enableStatic "static");
+
+  # To avoid library name collisions
+  finalLayout = if ((enableRelease && enableDebug) ||
+    (enableSingleThreaded && enableMultiThreaded) ||
+    (enableShared && enableStatic)) then
+    "tagged" else "system";
+
+  cflags = if (enablePIC && enableExceptions) then
+             "cflags=-fPIC -fexceptions cxxflags=-fPIC linkflags=-fPIC"
+           else if (enablePIC) then
+             "cflags=-fPIC cxxflags=-fPIC linkflags=-fPIC"
+           else if (enableExceptions) then
+             "cflags=-fexceptions"
+           else
+             "";
+in
+
+stdenv.mkDerivation {
+  name = "boost-1.50.0";
+
+  meta = {
+    homepage = "http://boost.org/";
+    description = "Boost C++ Library Collection";
+    license = "boost-license";
+
+    platforms = stdenv.lib.platforms.unix;
+    maintainers = [ stdenv.lib.maintainers.simons ];
+  };
+
+  src = fetchurl {
+    url = "mirror://sourceforge/boost/boost_1_50_0.tar.bz2";
+    sha256 = "0ac5b82g6b5pdhzypgddql0i3i9vvrwf9iqp3lyp19hzr2wf5b69";
+  };
+
+  enableParallelBuilding = true;
+
+  buildInputs = [icu expat zlib bzip2 python];
+
+  configureScript = "./bootstrap.sh";
+  configureFlags = "--with-icu=${icu} --with-python=${python}/bin/python";
+
+  buildPhase = "./b2 -j$NIX_BUILD_CORES -sEXPAT_INCLUDE=${expat}/include -sEXPAT_LIBPATH=${expat}/lib --layout=${finalLayout} variant=${variant} threading=${threading} link=${link} ${cflags} install";
+
+  installPhase = ":";
+
+  crossAttrs = rec {
+    buildInputs = [ expat.hostDrv zlib.hostDrv bzip2.hostDrv ];
+    # all buildInputs set previously fell into propagatedBuildInputs, as usual, so we have to
+    # override them.
+    propagatedBuildInputs = buildInputs;
+    # We want to substitute the contents of configureFlags, removing thus the
+    # usual --build and --host added on cross building.
+    preConfigure = ''
+      export configureFlags="--prefix=$out --without-icu"
+    '';
+    buildPhase = ''
+      set -x
+      cat << EOF > user-config.jam
+      using gcc : cross : $crossConfig-g++ ;
+      EOF
+      ./b2 -j$NIX_BUILD_CORES -sEXPAT_INCLUDE=${expat.hostDrv}/include -sEXPAT_LIBPATH=${expat.hostDrv}/lib --layout=${finalLayout} --user-config=user-config.jam toolset=gcc-cross variant=${variant} threading=${threading} link=${link} ${cflags} --without-python install
+    '';
+  };
+}

pkgs/top-level/all-packages.nix

@@ -3217,10 +3217,12 @@ let
   boost147 = callPackage ../development/libraries/boost/1.47.nix { };
   boost148 = callPackage ../development/libraries/boost/1.48.nix { };
   boost149 = callPackage ../development/libraries/boost/1.49.nix { };
-  boost = boost149;
+  boost150 = callPackage ../development/libraries/boost/1.50.nix { };
+  boost = boost150;
 
   boostHeaders149 = callPackage ../development/libraries/boost/1.49-headers.nix { };
-  boostHeaders = boostHeaders149;
+  boostHeaders150 = callPackage ../development/libraries/boost/1.50-headers.nix { };
+  boostHeaders = boostHeaders150;
 
   # A Boost build with all library variants enabled.  Very large (about 250 MB).
   boostFull = appendToName "full" (boost.override {