Thanks, Alexander, for the quick reply. I found the xorg-x11-devel package in my FC3 installation. (Please see below at the bottom of this email for the detail of rpm -qi xorg-x11-devel. ) Looking at the issue more closely, I found the error statement emphasing incompatable libXext.so in configure.log for configureing mplayer. Looking in /usr/X11R6/lib, the libXext.so was there. (Please see below at the bottom of this email for the details of these files) Here comes my questions: My first question is why not compatible? I could not find any package titled xorg-x11-Xext... in the update archive: http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/x86_64/ My next question where to find this package that generate libXext? Looking at both the reply of rpm -qi on the xorg-x11 and xorg-x11-devel, I found the installated rpm packages was not of amd64 versions. At least the version number in the reply of rpm -qi did not show amd64. (please see below the rpm -qi reply) My third question is that I am having an amd64 box, does it mean I need to reload all relevant xorg amd64 packages? should they be xorg-x11-devel-6.8.1-12.FC3.1.x86_64.rpm? and xorg-x11-6.8.1-12.FC3.1.x86_64.rpm? My fourth question is that why did FC3 installation disks of amd64 not install the correct version of X11 in my amd64 box? Appreciate anyone for any hint and help. ********************************* Here is the incompatible error in configure.log: cc /tmp/mplayer-conf-539-14799.c -o /tmp/mplayer-conf-21956-14799.o -I/usr/X11R6/include -L/usr/X11R6/lib -lXext -lX11 -lnsl /usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXext.so when searching for -lXext /usr/bin/ld: skipping incompatible /usr/X11R6/lib/libXext.a when searching for -lXext /usr/bin/ld: cannot find -lXext collect2: ld returned 1 exit status .............. Looking up further for these files in /usr/X11R6/lib, they are there. [root@jojo lib]# ls -l libX* -rw-r--r-- 1 root root 1391494 Oct 21 05:45 libX11.a lrwxrwxrwx 1 root root 13 Nov 13 07:07 libX11.so -> libX11.so.6.2 lrwxrwxrwx 1 root root 13 Nov 13 06:49 libX11.so.6 -> libX11.so.6.2 -rwxr-xr-x 1 root root 814588 Oct 21 05:46 libX11.so.6.2 ....................... -rw-r--r-- 1 root root 73032 Oct 21 05:45 libXext.a lrwxrwxrwx 1 root root 14 Nov 13 07:07 libXext.so -> libXext.so.6.4 lrwxrwxrwx 1 root root 14 Nov 13 06:49 libXext.so.6 -> libXext.so.6.4 -rwxr-xr-x 1 root root 53508 Oct 21 05:46 libXext.so.6.4 ************** here is the rpm -qi xorg-x11-devel [root@jojo X11]# rpm -qi xorg-x11-devel Name : xorg-x11-devel Relocations: (not relocatable) Version : 6.8.1 Vendor: Red Hat, Inc. Release : 12 Build Date: Thu 21 Oct 2004 05:46:52 AM SGT Install Date: Sat 13 Nov 2004 07:07:31 AM SGT Build Host: tweety.build.redhat.com Group : Development/Libraries Source RPM: xorg-x11-6.8.1-12.src.rpm ****************************** regards, kockkin ko On Sat, 20 Nov 2004 06:26:35 +0100, Alexander Dalloz <ad+lists@xxxxxxxxx> wrote: > Am Sa, den 20.11.2004 schrieb kockkin ko um 6:12: > > > > > When doing .configure at mplayer, I have the following errors: > > Error: X11 support required for GUI compilation. > > When checking rpm -qi xorg-x11, the package xorg-x11-6.8.12 is found > > in my FC3 package. > > > > My question is that what package did I missed in my FC3? I did a full > > package installation -- always in my desktop PC. > > Is it the xorg-x11-6.8.1-12.FC3.1.x86_64.rpm ? or all the update of > > xorg-x11 in http://download.fedora.redhat.com/pub/fedora/linux/core/updates/3/x86_64/? > > > > Below is the error messeages in details. > > > > Appreciate anyone for any hint and help. > > > > *************************************** > > Here the error messages from .configure > > Checking for X11 headers presence ... yes (using /usr/X11R6/include) > > Checking for X11 libs presence ... yes (using /usr/X11R6/lib) > > Checking for X11 ... no > > > kockkin ko > > xorg-x11-devel is missing. > > Alexander > > -- > Alexander Dalloz | Enger, Germany | new address - new key: 0xB366A773 > legal statement: http://www.uni-x.org/legal.html > Fedora GNU/Linux Core 2 (Tettnang) on Athlon kernel 2.6.9-1.6_FC2smp > Serendipity 06:26:24 up 1:13, 16 users, 0.36, 0.93, 0.83 > > >