diff --git a/pkgs/development/interpreters/python/2.7/default.nix b/pkgs/development/interpreters/python/2.7/default.nix
index e4d3d057570f..098603105410 100644
--- a/pkgs/development/interpreters/python/2.7/default.nix
+++ b/pkgs/development/interpreters/python/2.7/default.nix
@@ -9,11 +9,11 @@ with stdenv.lib;
 let
 
   majorVersion = "2.7";
-  version = "${majorVersion}.2";
+  version = "${majorVersion}.3";
 
   src = fetchurl {
     url = "http://www.python.org/ftp/python/${version}/Python-${version}.tar.bz2";
-    sha256 = "1axx9h1r157fanldmnj1q2gdw2sm0sg8h3mx1l2adddmgq3fnmsh";
+    sha256 = "0g3672il41rcfjk7sphfqdsa6qf53y8g3ai8yk1sslxi3khmfr3j";
   };
 
   patches =
diff --git a/pkgs/development/libraries/glibc/2.13/builder.sh b/pkgs/development/libraries/glibc/2.13/builder.sh
index 9a1c1490019a..e68e13f9beca 100644
--- a/pkgs/development/libraries/glibc/2.13/builder.sh
+++ b/pkgs/development/libraries/glibc/2.13/builder.sh
@@ -51,5 +51,4 @@ postInstall() {
     rm -f $out/lib/libgcc_s.so.1
 }
 
-
 genericBuild
diff --git a/pkgs/development/libraries/glibc/2.13/common.nix b/pkgs/development/libraries/glibc/2.13/common.nix
index ca5be5998aaf..86004de640a3 100644
--- a/pkgs/development/libraries/glibc/2.13/common.nix
+++ b/pkgs/development/libraries/glibc/2.13/common.nix
@@ -76,6 +76,9 @@ stdenv.mkDerivation ({
     /* Allow nixos and nix handle the locale-archive. */
     ./nix-locale-archive.patch
 
+    /* don't use /etc/ld.so.cache, for non-nixos systems */
+    ./dont_use_system_ld_so_cache.patch
+
     /* Without this patch many KDE binaries crash. */
     ./glibc-elf-localscope.patch
   ] ++ stdenv.lib.optional installLocales ./catalan-firstdays.patch;
diff --git a/pkgs/development/libraries/glibc/2.13/dont_use_system_ld_so_cache.patch b/pkgs/development/libraries/glibc/2.13/dont_use_system_ld_so_cache.patch
new file mode 100644
index 000000000000..444eb8251e49
--- /dev/null
+++ b/pkgs/development/libraries/glibc/2.13/dont_use_system_ld_so_cache.patch
@@ -0,0 +1,43 @@
+diff -Naur glibc-2.13-orig/elf/ldconfig.c glibc-2.13/elf/ldconfig.c
+--- glibc-2.13-orig/elf/ldconfig.c	2011-01-17 23:34:07.000000000 -0500
++++ glibc-2.13/elf/ldconfig.c	2012-04-10 23:28:45.957492340 -0400
+@@ -51,7 +51,7 @@
+ #endif
+ 
+ #ifndef LD_SO_CONF
+-# define LD_SO_CONF SYSCONFDIR "/ld.so.conf"
++# define LD_SO_CONF PREFIX "/etc/ld.so.conf"
+ #endif
+ 
+ /* Get libc version number.  */
+diff -Naur glibc-2.13-orig/elf/Makefile glibc-2.13/elf/Makefile
+--- glibc-2.13-orig/elf/Makefile	2011-01-17 23:34:07.000000000 -0500
++++ glibc-2.13/elf/Makefile	2012-04-10 23:27:05.666477442 -0400
+@@ -459,11 +459,11 @@
+ $(objpfx)sprof: $(libdl)
+ 
+ $(objpfx)ldconfig: $(ldconfig-modules:%=$(objpfx)%.o)
+-SYSCONF-FLAGS := -D'SYSCONFDIR="$(sysconfdir)"'
+-CFLAGS-ldconfig.c = $(SYSCONF-FLAGS) -D'LIBDIR="$(libdir)"' \
++PREFIX-FLAGS := -D'PREFIX="$(prefix)"'
++CFLAGS-ldconfig.c = $(PREFIX-FLAGS) -D'LIBDIR="$(libdir)"' \
+ 		    -D'SLIBDIR="$(slibdir)"' -DIS_IN_ldconfig=1
+-CFLAGS-dl-cache.c = $(SYSCONF-FLAGS)
+-CFLAGS-cache.c = $(SYSCONF-FLAGS)
++CFLAGS-dl-cache.c = $(PREFIX-FLAGS)
++CFLAGS-cache.c = $(PREFIX-FLAGS)
+ 
+ CPPFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),-DNOT_IN_libc=1 -DIS_IN_rtld=1)
+ 
+diff -Naur glibc-2.13-orig/sysdeps/generic/dl-cache.h glibc-2.13/sysdeps/generic/dl-cache.h
+--- glibc-2.13-orig/sysdeps/generic/dl-cache.h	2011-01-17 23:34:07.000000000 -0500
++++ glibc-2.13/sysdeps/generic/dl-cache.h	2012-04-10 23:28:20.077488815 -0400
+@@ -29,7 +29,7 @@
+ #endif
+ 
+ #ifndef LD_SO_CACHE
+-# define LD_SO_CACHE SYSCONFDIR "/ld.so.cache"
++# define LD_SO_CACHE PREFIX "/etc/ld.so.cache"
+ #endif
+ 
+ #ifndef add_system_dir
diff --git a/pkgs/development/libraries/glibc/2.14/builder.sh b/pkgs/development/libraries/glibc/2.14/builder.sh
index 9a1c1490019a..e68e13f9beca 100644
--- a/pkgs/development/libraries/glibc/2.14/builder.sh
+++ b/pkgs/development/libraries/glibc/2.14/builder.sh
@@ -51,5 +51,4 @@ postInstall() {
     rm -f $out/lib/libgcc_s.so.1
 }
 
-
 genericBuild
diff --git a/pkgs/development/libraries/glibc/2.14/common.nix b/pkgs/development/libraries/glibc/2.14/common.nix
index 8edbbd1125a4..a8d0f661b72f 100644
--- a/pkgs/development/libraries/glibc/2.14/common.nix
+++ b/pkgs/development/libraries/glibc/2.14/common.nix
@@ -75,6 +75,9 @@ stdenv.mkDerivation ({
     /* Allow nixos and nix handle the locale-archive. */
     ./nix-locale-archive.patch
 
+    /* don't use /etc/ld.so.cache, for non-nixos systems */
+    ./dont_use_system_ld_so_cache.patch
+
     /* Without this patch many KDE binaries crash. */
     ./glibc-elf-localscope.patch
   ];
diff --git a/pkgs/development/libraries/glibc/2.14/dont_use_system_ld_so_cache.patch b/pkgs/development/libraries/glibc/2.14/dont_use_system_ld_so_cache.patch
new file mode 100644
index 000000000000..444eb8251e49
--- /dev/null
+++ b/pkgs/development/libraries/glibc/2.14/dont_use_system_ld_so_cache.patch
@@ -0,0 +1,43 @@
+diff -Naur glibc-2.13-orig/elf/ldconfig.c glibc-2.13/elf/ldconfig.c
+--- glibc-2.13-orig/elf/ldconfig.c	2011-01-17 23:34:07.000000000 -0500
++++ glibc-2.13/elf/ldconfig.c	2012-04-10 23:28:45.957492340 -0400
+@@ -51,7 +51,7 @@
+ #endif
+ 
+ #ifndef LD_SO_CONF
+-# define LD_SO_CONF SYSCONFDIR "/ld.so.conf"
++# define LD_SO_CONF PREFIX "/etc/ld.so.conf"
+ #endif
+ 
+ /* Get libc version number.  */
+diff -Naur glibc-2.13-orig/elf/Makefile glibc-2.13/elf/Makefile
+--- glibc-2.13-orig/elf/Makefile	2011-01-17 23:34:07.000000000 -0500
++++ glibc-2.13/elf/Makefile	2012-04-10 23:27:05.666477442 -0400
+@@ -459,11 +459,11 @@
+ $(objpfx)sprof: $(libdl)
+ 
+ $(objpfx)ldconfig: $(ldconfig-modules:%=$(objpfx)%.o)
+-SYSCONF-FLAGS := -D'SYSCONFDIR="$(sysconfdir)"'
+-CFLAGS-ldconfig.c = $(SYSCONF-FLAGS) -D'LIBDIR="$(libdir)"' \
++PREFIX-FLAGS := -D'PREFIX="$(prefix)"'
++CFLAGS-ldconfig.c = $(PREFIX-FLAGS) -D'LIBDIR="$(libdir)"' \
+ 		    -D'SLIBDIR="$(slibdir)"' -DIS_IN_ldconfig=1
+-CFLAGS-dl-cache.c = $(SYSCONF-FLAGS)
+-CFLAGS-cache.c = $(SYSCONF-FLAGS)
++CFLAGS-dl-cache.c = $(PREFIX-FLAGS)
++CFLAGS-cache.c = $(PREFIX-FLAGS)
+ 
+ CPPFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),-DNOT_IN_libc=1 -DIS_IN_rtld=1)
+ 
+diff -Naur glibc-2.13-orig/sysdeps/generic/dl-cache.h glibc-2.13/sysdeps/generic/dl-cache.h
+--- glibc-2.13-orig/sysdeps/generic/dl-cache.h	2011-01-17 23:34:07.000000000 -0500
++++ glibc-2.13/sysdeps/generic/dl-cache.h	2012-04-10 23:28:20.077488815 -0400
+@@ -29,7 +29,7 @@
+ #endif
+ 
+ #ifndef LD_SO_CACHE
+-# define LD_SO_CACHE SYSCONFDIR "/ld.so.cache"
++# define LD_SO_CACHE PREFIX "/etc/ld.so.cache"
+ #endif
+ 
+ #ifndef add_system_dir
diff --git a/pkgs/development/libraries/gmp/5.0.3.nix b/pkgs/development/libraries/gmp/5.0.5.nix
similarity index 83%
rename from pkgs/development/libraries/gmp/5.0.3.nix
rename to pkgs/development/libraries/gmp/5.0.5.nix
index 962c2c5b74b1..3fb625850515 100644
--- a/pkgs/development/libraries/gmp/5.0.3.nix
+++ b/pkgs/development/libraries/gmp/5.0.5.nix
@@ -1,13 +1,15 @@
 { stdenv, fetchurl, m4, cxx ? true }:
 
-stdenv.mkDerivation (rec {
-  name = "gmp-5.0.3";
+stdenv.mkDerivation rec {
+  name = "gmp-5.0.5";
 
   src = fetchurl {
     url = "mirror://gnu/gmp/${name}.tar.bz2";
-    sha256 = "dcafe9989c7f332b373e1f766af8e9cd790fc802fdec422a1910a6ef783480e3";
+    sha256 = "1jfymbr90mpn0zw5sg001llqnvf2462y77vgjknrmfs1rjn8ln0z";
   };
 
+  patches = [ ./ignore-bad-cpuid.patch ];
+
   buildNativeInputs = [ m4 ];
 
   configureFlags =
@@ -51,13 +53,3 @@ stdenv.mkDerivation (rec {
     platforms = stdenv.lib.platforms.all;
   };
 }
-
-//
-
-(if stdenv.isFreeBSD
- then {
-   # The FreeBSD boxes at hydra.nixos.org are VMs run in QEMU.  This patch
-   # allows GMP to work correctly in that environment.
-   patches = [ ./ignore-bad-cpuid.patch ];
- }
- else { }))
diff --git a/pkgs/development/libraries/libpng/default.nix b/pkgs/development/libraries/libpng/default.nix
index a79f05ab093d..a06e8e12543a 100644
--- a/pkgs/development/libraries/libpng/default.nix
+++ b/pkgs/development/libraries/libpng/default.nix
@@ -3,11 +3,11 @@
 assert zlib != null;
 
 stdenv.mkDerivation rec {
-  name = "libpng-1.5.9";
+  name = "libpng-1.5.10";
 
   src = fetchurl {
     url = "mirror://sourceforge/libpng/${name}.tar.xz";
-    sha256 = "0rd0kn7bpdhbv4gw6475plc51a4p5kzk26kag0d08wfvb7ip8wxq";
+    sha256 = "0pb096zn6iyza28js4j7krvcw23b979igfi315aqmvx622bw6jfx";
   };
 
   propagatedBuildInputs = [ zlib ];
diff --git a/pkgs/development/libraries/openssl/default.nix b/pkgs/development/libraries/openssl/default.nix
index 1a4767916f8f..cd164b13f8e3 100644
--- a/pkgs/development/libraries/openssl/default.nix
+++ b/pkgs/development/libraries/openssl/default.nix
@@ -1,7 +1,7 @@
 { stdenv, fetchurl, perl }:
 
 let
-  name = "openssl-1.0.0g";
+  name = "openssl-1.0.0i";
 
   opensslCrossSystem = stdenv.lib.attrByPath [ "openssl" "system" ]
     (throw "openssl needs its platform name cross building" null)
@@ -23,8 +23,7 @@ let
            ./gnu.patch                # submitted upstream
          ]
 
-    ++ stdenv.lib.optional stdenv.isDarwin ./darwin-arch.patch
-    ++ stdenv.lib.optional (stdenv.system == "x86_64-freebsd") ./freebsd-x86_64-asm.patch;
+    ++ stdenv.lib.optional stdenv.isDarwin ./darwin-arch.patch;
   
 in
 
@@ -36,7 +35,7 @@ stdenv.mkDerivation {
       "http://www.openssl.org/source/${name}.tar.gz"
       "http://openssl.linux-mirror.org/source/${name}.tar.gz"
     ];
-    sha1 = "2b517baada2338663c27314cb922f9755e73e07f";
+    sha1 = "b7aa11cbd7d264c2b1f44e3d55b334fb33f7b674";
   };
 
   patches = patchesCross false;
diff --git a/pkgs/development/libraries/openssl/freebsd-x86_64-asm.patch b/pkgs/development/libraries/openssl/freebsd-x86_64-asm.patch
deleted file mode 100644
index f52e4dac25f5..000000000000
--- a/pkgs/development/libraries/openssl/freebsd-x86_64-asm.patch
+++ /dev/null
@@ -1,16 +0,0 @@
-Patch for <http://rt.openssl.org/Ticket/Display.html?id=2435&user=guest&pass=guest>.
-Fixes compilation on FreeBSD 8.2 with GNU Make 3.81.
-
-diff --git a/crypto/perlasm/x86_64-xlate.pl b/crypto/perlasm/x86_64-xlate.pl
-index e47116b..dc500ae 100755
---- a/crypto/perlasm/x86_64-xlate.pl
-+++ b/crypto/perlasm/x86_64-xlate.pl
-@@ -66,7 +66,7 @@ if ($flavour =~ /\./) { $output = $flavour; undef $flavour; }
-   my ($outdev,$outino,@junk)=stat($output);
- 
-     open STDOUT,">$output" || die "can't open $output: $!"
--	if ($stddev!=$outdev || $stdino!=$outino);
-+	if (!defined($outdev) || $stddev!=$outdev || $stdino!=$outino);
- }
- 
- my $gas=1;	$gas=0 if ($output =~ /\.asm$/);
diff --git a/pkgs/development/libraries/zlib/default.nix b/pkgs/development/libraries/zlib/default.nix
index eecdc80da5e8..5e1ddf839516 100644
--- a/pkgs/development/libraries/zlib/default.nix
+++ b/pkgs/development/libraries/zlib/default.nix
@@ -1,6 +1,6 @@
 { stdenv, fetchurl, static ? false }:
 
-let version = "1.2.6"; in
+let version = "1.2.7"; in
 
 stdenv.mkDerivation rec {
   name = "zlib-${version}";
@@ -10,7 +10,7 @@ stdenv.mkDerivation rec {
       [ "http://www.zlib.net/${name}.tar.gz"  # old versions vanish from here
         "mirror://sourceforge/libpng/zlib/${version}/${name}.tar.gz"
       ];
-    sha256 = "06x6m33ls1606ni7275q5z392csvh18dgs55kshfnvrfal45w8r1";
+    sha256 = "1i96gsdvxqb6skp9a58bacf1wxamwi9m9pg4yn7cpf7g7239r77s";
   };
 
   configureFlags = if static then "" else "--shared";
diff --git a/pkgs/development/tools/parsing/bison/bison-2.5.nix b/pkgs/development/tools/parsing/bison/bison-2.5.nix
index 98c465a185cf..ea50b8590204 100644
--- a/pkgs/development/tools/parsing/bison/bison-2.5.nix
+++ b/pkgs/development/tools/parsing/bison/bison-2.5.nix
@@ -12,7 +12,7 @@ stdenv.mkDerivation rec {
     ++ stdenv.lib.optional doCheck perl;
   propagatedBuildInputs = [ m4 ];
 
-  M4 = "m4";
+  M4 = "${m4}/bin/m4";
 
   doCheck = true;
 
diff --git a/pkgs/shells/bash/bash-4.2-patches.nix b/pkgs/shells/bash/bash-4.2-patches.nix
index 0a2101865320..8d2a74e95b0b 100644
--- a/pkgs/shells/bash/bash-4.2-patches.nix
+++ b/pkgs/shells/bash/bash-4.2-patches.nix
@@ -21,4 +21,8 @@ patch: [
 (patch "018" "0ka9pfnjmdak8lvmbryv2r1kkrlffnxbqjxq656la39pf9qlbag2")
 (patch "019" "0mpb0whacppwcdx7pcnf0ah5vjvkw14ang6r2rh9fmkn401cvdx8")
 (patch "020" "0vrwv9wpbr692kf427npmsxzvn007d9alk6jf99v7307s3q76is9")
+(patch "021" "1p5s6apnnbmx4yf1kzndw7fiwvdxamkcgqiv937mwmr6w9xsk1x8")
+(patch "022" "0sswp2c63pclvdwi2hbkwbqf9ysmiw6mmi0qinl2pkgqyyfzdkcx")
+(patch "023" "1gzhcmwj0741libjqwln4r4h9k7lskprc4q87hvqgj56y6a17hax")
+(patch "024" "1rlrdfk67g8as6pr076ldhjhnkd2c86mb4ci18fjivivsfyjdj4r")
 ]
diff --git a/pkgs/stdenv/generic/setup.sh b/pkgs/stdenv/generic/setup.sh
index 655b7f940476..703ea53db8e0 100644
--- a/pkgs/stdenv/generic/setup.sh
+++ b/pkgs/stdenv/generic/setup.sh
@@ -432,15 +432,15 @@ unpackFile() {
     case "$curSrc" in
         *.tar.xz | *.tar.lzma)
             # Don't rely on tar knowing about .xz.
-            xz -d < $curSrc | tar xvf -
+            xz -d < $curSrc | tar xf -
             ;;
         *.tar | *.tar.* | *.tgz | *.tbz2)
             # GNU tar can automatically select the decompression method
             # (info "(tar) gzip").
-            tar xvf $curSrc
+            tar xf $curSrc
             ;;
         *.zip)
-            unzip $curSrc
+            unzip -qq $curSrc
             ;;
         *)
             if [ -d "$curSrc" ]; then
@@ -767,6 +767,19 @@ fixupPhase() {
 }
 
 
+installCheckPhase() {
+    runHook preInstallCheck
+
+    echo "installcheck flags: $makeFlags ${makeFlagsArray[@]} $installCheckFlags ${installCheckFlagsArray[@]}"
+    make ${makefile:+-f $makefile} \
+        ${enableParallelBuilding:+-j${NIX_BUILD_CORES} -l${NIX_BUILD_CORES}} \
+        $makeFlags "${makeFlagsArray[@]}" \
+        $installCheckFlags "${installCheckFlagsArray[@]}" ${installCheckTarget:-installcheck}
+
+    runHook postInstallCheck
+}
+
+
 distPhase() {
     runHook preDist
 
@@ -795,6 +808,7 @@ showPhaseHeader() {
         checkPhase) header "running tests";;
         installPhase) header "installing";;
         fixupPhase) header "post-installation fixup";;
+        installCheckPhase) header "running install tests";;
         *) header "$phase";;
     esac
 }
@@ -811,7 +825,7 @@ genericBuild() {
     if [ -z "$phases" ]; then
         phases="$prePhases unpackPhase patchPhase $preConfigurePhases \
             configurePhase $preBuildPhases buildPhase checkPhase \
-            $preInstallPhases installPhase fixupPhase \
+            $preInstallPhases installPhase fixupPhase installCheckPhase \
             $preDistPhases distPhase $postPhases";
     fi
 
@@ -820,6 +834,7 @@ genericBuild() {
         if [ "$curPhase" = checkPhase -a -z "$doCheck" ]; then continue; fi
         if [ "$curPhase" = installPhase -a -n "$dontInstall" ]; then continue; fi
         if [ "$curPhase" = fixupPhase -a -n "$dontFixup" ]; then continue; fi
+        if [ "$curPhase" = installCheckPhase -a -z "$doInstallCheck" ]; then continue; fi
         if [ "$curPhase" = distPhase -a -z "$doDist" ]; then continue; fi
 
         if [ -n "$tracePhases" ]; then
diff --git a/pkgs/tools/package-management/nix/unstable.nix b/pkgs/tools/package-management/nix/unstable.nix
index ca8ac6052777..912248b694c3 100644
--- a/pkgs/tools/package-management/nix/unstable.nix
+++ b/pkgs/tools/package-management/nix/unstable.nix
@@ -34,6 +34,8 @@ stdenv.mkDerivation rec {
       CFLAGS=-O3 CXXFLAGS=-O3
     '';
 
+  doInstallCheck = true;
+
   crossAttrs = {
     postUnpack =
       '' export CPATH="${bzip2.hostDrv}/include"
@@ -51,14 +53,11 @@ stdenv.mkDerivation rec {
       '' + stdenv.lib.optionalString (
           stdenv.cross ? nix && stdenv.cross.nix ? system
       ) ''--with-system=${stdenv.cross.nix.system}'';
-    doCheck = false;
-    postInstall = ":";
+    doInstallCheck = false;
   };
 
   enableParallelBuilding = true;
 
-  postInstall = "make installcheck";
-
   meta = {
     description = "The Nix Deployment System";
     homepage = http://nixos.org/;
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 8f81670c63c9..ec9857aee3b5 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -3705,7 +3705,7 @@ let
       # GMP 4.3.2 is broken on Darwin, so use 4.3.1.
       callPackage ../development/libraries/gmp/4.3.1.nix { }
     else
-      callPackage ../development/libraries/gmp/5.0.3.nix { };
+      callPackage ../development/libraries/gmp/5.0.5.nix { };
 
   gmpxx = appendToName "with-cxx" (gmp.override { cxx = true; });