diff --git a/webbuild/webbuild-functions-private b/webbuild/webbuild-functions-private
index 567c599..3f0e282 100644
--- a/webbuild/webbuild-functions-private
+++ b/webbuild/webbuild-functions-private
@@ -59,7 +59,7 @@ function showlog() {
          tail -n +0 -f $f --pid $PROCESSPID | stdbuf -oL sed "s|<|\&lt;|g"
          echo -n "<!-- ENDSCROLL -->"
       else
-         if [ $LOGFILESIZE -lt 524288 ]; then
+         if [ $LOGFILESIZE -lt 2097152 ]; then
             if [ -r $f ]; then
                cat $f | parse_build_output $PACKAGE
             else
@@ -67,13 +67,13 @@ function showlog() {
             fi
          else
             if [ -r $f ]; then
-               head -c 262144 $f | parse_build_output $PACKAGE
+               head -c 1048576 $f | parse_build_output $PACKAGE
                echo "<br><font style=\"background-color:yellow;color:black\">&lt;------ CUT (long file) -------&gt;</font>"
-               tail -c 262144 $f | parse_build_output $PACKAGE
+               tail -c 1048576 $f | parse_build_output $PACKAGE
             else
-               $SUDO_WRAPPER 0 $ENVIRONMENT "$USER" "" "head -c 262144 $f" | parse_build_output $PACKAGE
+               $SUDO_WRAPPER 0 $ENVIRONMENT "$USER" "" "head -c 1048576 $f" | parse_build_output $PACKAGE
                echo "<br><font style=\"background-color:yellow;color:black\">&lt;------ CUT (long file) -------&gt;</font>"
-               $SUDO_WRAPPER 0 $ENVIRONMENT "$USER" "" "tail -c 262144 $f" | parse_build_output $PACKAGE
+               $SUDO_WRAPPER 0 $ENVIRONMENT "$USER" "" "tail -c 1048576 $f" | parse_build_output $PACKAGE
             fi
          fi
       fi
@@ -108,10 +108,18 @@ function showEnvironmentPanel() {
 
    # toolchain
    echo -n "<br>"
-   local toolchain_output=`LANGUAGE=C $SUDO_WRAPPER 0 $ENVIRONMENT "$USER" "" "gcc --version | head -n1; LANGUAGE=C ld -v"`
-   local gcc_ver=`echo $toolchain_output | sed "s|.*(GCC) \([0-9.]*\) .*|\1|"`
-   local binutils_ver=`echo $toolchain_output | sed "s|.*GNU \(.*\) (GNU Binutils.*)\(.*\)|\1 \2|"`
-   echo "Toolchain: gcc $gcc_ver, $binutils_ver"
+   if [ ! -e $WEBBUILD_STATEDIR/cache/environment-$ENVIRONMENT-data -o \
+        "`find $WEBBUILD_STATEDIR/cache/environment-$ENVIRONMENT-data -mmin +5`" ]; then
+      local toolchain_output=`LANGUAGE=C $SUDO_WRAPPER 0 $ENVIRONMENT "$USER" "" "gcc --version | head -n1; LANGUAGE=C clang -v | head -n1; LANGUAGE=C ld -v"`
+      local gcc_ver=`echo $toolchain_output | sed "s|.*(GCC) \([0-9.]*\) .*|\1|"`
+      local binutils_ver=`echo $toolchain_output | sed "s|.*GNU \(.*\) (GNU Binutils.*)\(.*\)|\1 \2|"`
+      local clang_ver=`echo $toolchain_output | sed "s|.*clang version \([0-9.]*\) .*|\1|"`
+      local toolchain_text="gcc $gcc_ver, clang $clang_ver, $binutils_ver"
+      echo "$toolchain_text" > $WEBBUILD_STATEDIR/cache/environment-$ENVIRONMENT-data
+   else
+      local toolchain_text=`cat $WEBBUILD_STATEDIR/cache/environment-$ENVIRONMENT-data`
+   fi
+   echo "Toolchain: $toolchain_text"
 
    # system upgrade
    echo -n "<br><input type=button id=smartupgrade value=\"system upgrade\" onclick="