* Prepend the "prehook" rather than sourcing it.

* Don't call xargs with the -r flag in the Darwin bootstrap.

svn path=/nixpkgs/branches/stdenv-updates/; revision=31703

pkgs/stdenv/generic/builder.sh

@@ -6,12 +6,13 @@ done
 
 mkdir $out
 
-sed \
-    -e "s^@preHook@^$preHook^g" \
+echo "$preHook" > $out/setup
+cat "$setup" >> $out/setup
+
+sed -i "$out/setup" \
     -e "s^@initialPath@^$initialPath^g" \
     -e "s^@gcc@^$gcc^g" \
-    -e "s^@shell@^$shell^g" \
-    < "$setup" > "$out/setup"
+    -e "s^@shell@^$shell^g"
 
 # Allow the user to install stdenv using nix-env and get the packages
 # in stdenv.

pkgs/stdenv/generic/default.nix

@@ -1,4 +1,4 @@
-{ system, name, preHook ? null, initialPath, gcc, shell
+{ system, name, preHook ? "", initialPath, gcc, shell
 , extraAttrs ? {}, overrides ? (pkgs: {})
 
 , # The `fetchurl' to use for downloading curl and its dependencies

pkgs/stdenv/generic/setup.sh

@@ -103,7 +103,6 @@ fi
 # Execute the pre-hook.
 export SHELL=@shell@
 if [ -z "$shell" ]; then export shell=@shell@; fi
-if [ -n "@preHook@" ]; then source @preHook@; fi
 runHook preHook
 
 
@@ -174,6 +173,7 @@ for i in $buildNativeInputs $propagatedBuildNativeInputs; do
     findInputs $i nativePkgs propagated-build-native-inputs
 done
 
+
 # Set the relevant environment variables to point to the build inputs
 # found above.
 addToNativeEnv() {

pkgs/stdenv/linux/default.nix

@@ -55,10 +55,10 @@ rec {
     
     builder = bootstrapFiles.sh;
     
-    args = if (system == "armv5tel-linux") then
-      ([ ./scripts/unpack-bootstrap-tools-arm.sh ])
-      else 
-      ([ ./scripts/unpack-bootstrap-tools.sh ]);
+    args =
+      if system == "armv5tel-linux"
+      then [ ./scripts/unpack-bootstrap-tools-arm.sh ]
+      else [ ./scripts/unpack-bootstrap-tools.sh ];
     
     inherit (bootstrapFiles) bzip2 mkdir curl cpio;
     
@@ -82,7 +82,7 @@ rec {
     import ../generic {
       inherit system;
       name = "stdenv-linux-boot";
-      preHook = builtins.toFile "prehook.sh"
+      preHook =
         ''
           # Don't patch #!/interpreter because it leads to retained
           # dependencies on the bootstrapTools in the final stdenv.
@@ -263,7 +263,7 @@ rec {
     
     inherit system;
     
-    preHook = builtins.toFile "prehook.sh" commonPreHook;
+    preHook = commonPreHook;
     
     initialPath = 
       ((import ../common-path.nix) {pkgs = stdenvLinuxBoot4Pkgs;})

pkgs/stdenv/linux/scripts/prehook.sh

@@ -1,3 +0,0 @@
-export NIX_ENFORCE_PURITY=1
-
-havePatchELF=1

pkgs/stdenv/native/default.nix

@@ -11,22 +11,23 @@ rec {
     (if system == "i686-netbsd" then [ "/usr/pkg" ] else []) ++
     ["/" "/usr" "/usr/local"];
 
-  prehookBase = builtins.toFile "prehook-base.sh" ''
+  prehookBase = ''
     # Disable purity tests; it's allowed (even needed) to link to
     # libraries outside the Nix store (like the C library).
     export NIX_ENFORCE_PURITY=
   '';
 
-  prehookDarwin = builtins.toFile "prehook-darwin.sh" ''
-    source ${prehookBase}
+  prehookDarwin = ''
+    ${prehookBase}
     export NIX_DONT_SET_RPATH=1
     export NIX_NO_SELF_RPATH=1
     dontFixLibtool=1
     stripAllFlags=" " # the Darwin "strip" command doesn't know "-s" 
+    xargsFlags=" "
   '';
 
-  prehookFreeBSD = builtins.toFile "prehook-freebsd.sh" ''
-    source ${prehookBase}
+  prehookFreeBSD = ''
+    ${prehookBase}
     
     alias make=gmake
     alias tar=gtar
@@ -38,8 +39,8 @@ rec {
     export NIX_GCC_NEEDS_GREP=1
   '';
 
-  prehookOpenBSD = builtins.toFile "prehook-openbsd.sh" ''
-    source ${prehookBase}
+  prehookOpenBSD = ''
+    ${prehookBase}
     
     alias make=gmake
     alias grep=ggrep
@@ -55,8 +56,8 @@ rec {
     export NIX_GCC_NEEDS_GREP=1
   '';
 
-  prehookNetBSD = builtins.toFile "prehook-netbsd.sh" ''
-    source ${prehookBase}
+  prehookNetBSD = ''
+    ${prehookBase}
     
     alias make=gmake
     alias sed=gsed
@@ -68,8 +69,8 @@ rec {
     export NIX_GCC_NEEDS_GREP=1
   '';
 
-  prehookCygwin = builtins.toFile "prehook-cygwin.sh" ''
-    source ${prehookBase}
+  prehookCygwin = ''
+    ${prehookBase}
     
     if test -z "$cygwinConfigureEnableShared"; then
       export configureFlags="$configureFlags --disable-shared"

pkgs/stdenv/nix/default.nix

@@ -2,7 +2,21 @@
 
 import ../generic {
   name = "stdenv-nix";
-  preHook = ./prehook.sh;
+  
+  preHook =
+    ''
+      export NIX_ENFORCE_PURITY=1
+      export NIX_IGNORE_LD_THROUGH_GCC=1
+
+      if [ "$system" = "i686-darwin" -o "$system" = "powerpc-darwin" -o "$system" = "x86_64-darwin" ]; then
+        export NIX_DONT_SET_RPATH=1
+        export NIX_NO_SELF_RPATH=1
+        dontFixLibtool=1
+        stripAllFlags=" " # the Darwin "strip" command doesn't know "-s" 
+        xargsFlags=" "
+      fi
+    '';
+
   initialPath = (import ../common-path.nix) {pkgs = pkgs;};
 
   system = stdenv.system;

pkgs/stdenv/nix/prehook.sh

@@ -1,10 +0,0 @@
-export NIX_ENFORCE_PURITY=1
-export NIX_IGNORE_LD_THROUGH_GCC=1
-
-if test "$system" = "i686-darwin" -o "$system" = "powerpc-darwin" -o "$system" = "x86_64-darwin"; then
-    export NIX_DONT_SET_RPATH=1
-    export NIX_NO_SELF_RPATH=1
-    dontFixLibtool=1
-    stripAllFlags=" " # the Darwin "strip" command doesn't know "-s" 
-    xargsFlags=" "
-fi