[webkit-help] build error of webkit-r29506

[wenmhappy]

Hi everybody,
 
    I have successfully built(cross compile) webkit-r59711 on embeded platform with script below.
 
export BUILD_WEBKIT_ARGS="--host=sh4-linux --build=i686-pc-linux-gnu \
                          --prefix=/opt/STM/STLinux-2.3/devkit/sh4/target/usr "
./WebKitTools/Scripts/build-webkit --gtk --release --makeargs="2> buildlog"
 
but failed to build webkit-r29506 with script below.
./WebKitTools/Scripts/build-webkit --gtk --release --host=sh4-linux --build=i686-pc-linux-gnu --prefix=/opt/STM/STLinux-2.3/devkit/sh4/target/usr --with-target=directfb
error is:
Can't exec "qmake": No such file or directory at /home/wen/WebKit-r29506/WebKitTools/Scripts/webkitdirs.pm line 693.
Use of uninitialized value $mkspec in scalar chomp at /home/wen/WebKit-r29506/WebKitTools/Scripts/webkitdirs.pm line 693.
Calling 'qmake CONFIG+=gtk-port CONFIG-=qt -r OUTPUT_DIR=/home/wen/WebKit-r29506/WebKitBuild/Release /home/wen/WebKit-r29506/WebKit.pro CONFIG+=release CONFIG-=debug' in /home/wen/WebKit-r29506/WebKitBuild/Release
Can't exec "qmake": No such file or directory at /home/wen/WebKit-r29506/WebKitTools/Scripts/webkitdirs.pm line 765.
Failed to setup build environment using qmake!

I  found there are different between two build-webkit scripts,   i don`t know how to fix it.
 
Thanks for help.
Best regards
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.webkit.org/pipermail/webkit-help/attachments/20111008/b843fea1/attachment.html>