hello Mike and all,
i checked my system and found both bison and flex has been installed, the version of bison is GNU bison 2.3, while the flex is 2.5.33,
is it the correct one for building webkit? all i misss some other things?

my step to build webkit is like this (refer to trunk/Bakefiles/Readme.txt)
cd WebKitTools/Scripts
sudo ./install-unix-extras
cd ../../JavaScriptCore
make
cd ..
cd WebCore/Projects/gdk/
make

then at the last step, i got follwoing error.

thank you and regards.
michelle

2007/9/29, Mike Hommey < mh+webkit@glandium.org>:

On Fri, Sep 28, 2007 at 08:55:39PM +0800, lan liu wrote:
> Hello webkit-dev,
>
> i check out the source code of version 25773 from
> http://svn.webkit.org/repository/webkit/trunk, try to build it, then i got
> following error:
>
> g++ -c -o obj-gnu/webcore_gdk_CSSGrammar.o -I../../../JavaScriptCore -I../..
> -I../../bindings/js -I../../bridge -I../../css
> -I../../DerivedSources/WebCore -I../../dom -I../../editing
> -I../../ForwardingHeaders/kjs -I../../history -I../../html -I../../include
> -I../../loader -I../../loader/gdk -I../../loader/icon -I../../page
> -I../../platform -I../../platform/graphics -I../../platform/graphics/gdk
> -I../../platform/image-decoders -I../../platform/image-decoders/bmp
> -I../../platform/image-decoders/gif -I../../platform/image-decoders/ico
> -I../../platform/image-decoders/jpeg -I../../platform/image-decoders/png
> -I../../platform/image-decoders/xbm -I../../platform/image-decoders/zlib
> -I../../platform/network -I../../platform/network/gdk -I../../rendering
> -I../../xml -DENABLE_XSLT=1 -DLINUX -DUSE_CONSERVATIVE_GC=0
> -DHAVE_FUNC_ISNAN -D_THREAD_SAFE -pthread -g -I../../platform/gdk
> -I../../platform/network/gdk -DBUILDING_GDK__ -DBUILDING_CAIRO__
> -Iplatform/gdk -Iplatform/graphics/cairo -DENABLE_XPATH
> -I/usr/include/libxml2 -I/usr/include/libxml2 -g -O2
> -I/usr/include/freetype2    -I/usr/include/gtk-2.0 -I/usr/lib/gtk-2.0/include
> -I/usr/include/atk-1.0 -I/usr/include/cairo
> -I/usr/include/pango-1.0-I/usr/include/glib-
> 2.0 -I/usr/lib/glib-2.0 /include    -I/usr/include/cairo    -fPIC -DPIC
> -fno-rtti -fno-exceptions   -MTobj-gnu/webcore_gdk_CSSGrammar.o -MF`echo
> obj-gnu/webcore_gdk_CSSGrammar.o | sed -e 's,\.o$,.d,'` -MD
> ../../DerivedSources/WebCore/CSSGrammar.cpp
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y: In function 'int
> WebCore::getPropertyID(const char*, int)':
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y:86:
> error£º'findProp': identifier not found
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y:90: error£ºinvalid
> use of undefined type 'const struct WebCore::props'
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y:86: error£ºforward
> declaration of 'const struct WebCore::props'
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y: In function 'int
> getValueID(const char*, int)':
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y:111:
> error£º'findValue' identifier not found
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y:115:
> error£ºinvalid use of undefined type 'const struct css_value'
> /home/michelle/Study/Webkit/trunk/WebCore/css/CSSGrammar.y:111:
> error£ºforward declaration of 'const struct css_value'
> make: *** [obj-gnu/webcore_gdk_CSSGrammar.o] error1

It looks like you don't have bison installed. You should also install
flex if not already installed.

Mike

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