gcc: fixup references. ToDo: port to gcc-4.9

pkgs/development/compilers/gcc/4.8/builder.sh

@@ -231,10 +231,17 @@ postInstall() {
     rm -rf $out/bin/gccbug
 
     # Take out the bootstrap-tools from the rpath, as it's not needed at all having $out
-    for i in $out/libexec/gcc/*/*/*; do
-        if PREV_RPATH=`patchelf --print-rpath $i`; then
-            patchelf --set-rpath `echo $PREV_RPATH | sed 's,:[^:]*bootstrap-tools/lib,,'` $i
-        fi
+    for i in "$out"/libexec/gcc/*/*/*; do
+        PREV_RPATH=`patchelf --print-rpath "$i"`
+        NEW_RPATH=`echo "$PREV_RPATH" | sed 's,:[^:]*bootstrap-tools/lib,,g'`
+        patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
+    done
+
+    # For some reason the libs retain RPATH to $out
+    for i in "$lib"/lib/{libtsan.so.0.0.0,libasan.so.0.0.0}; do
+        PREV_RPATH=`patchelf --print-rpath "$i"`
+        NEW_RPATH=`echo "$PREV_RPATH" | sed "s,:${out}[^:]*,,g"`
+        patchelf --set-rpath "$NEW_RPATH" "$i" && echo OK
     done
 
     # Get rid of some "fixed" header files

pkgs/development/compilers/gcc/4.8/default.nix

@@ -214,10 +214,9 @@ stdenv.mkDerivation ({
 
   inherit patches;
 
-  outputs = [ "out" "lib" ];
-
+  outputs = [ "out" "lib" "doc" ];
   setOutputFlags = false;
-
+  NIX_NO_SELF_RPATH = true;
 
   libc_dev = stdenv.gcc.libc_dev;