xlib compile issues

["Zach Gelnett" <zach at prozach dot com>]

I'm attempting to compile a dockapp (docker found at
http://icculus.org/openbox/2/docker/).  It gets to the linking stage runs
this command and dies:

gcc -pedantic -Wall -W -O -L/usr/X11R6/lib -lX11 \
`pkg-config --libs glib-2.0` docker.o kde.o icons.o xproperty.o net.o -o
docker

docker.o(.text+0x1d):docker.c: undefined reference to `_g_printerr'
docker.o(.text+0x133):docker.c: undefined reference to `_g_printerr'
docker.o(.text+0x1c9):docker.c: undefined reference to `_g_print'
docker.o(.text+0x1d5):docker.c: undefined reference to `_g_print'
docker.o(.text+0x1ec):docker.c: undefined reference to `_g_print'
docker.o(.text+0x1f8):docker.c: undefined reference to `_g_print'
docker.o(.text+0x204):docker.c: undefined reference to `_g_print'
docker.o(.text+0x210):docker.c: more undefined references to `_g_print'
follow
docker.o(.text+0x2b4):docker.c: undefined reference to
`_XCreateSimpleWindow'
docker.o(.text+0x353):docker.c: undefined reference to `_XSetWMProperties'
docker.o(.text+0x369):docker.c: undefined reference to `_XMapWindow'
docker.o(.text+0x42a):docker.c: undefined reference to
`_XCreateSimpleWindow'

It seems to be wanting the info from the Xlib libraries, yet they seem to
exist even in the place it's looking:

ls /usr/X11R6/lib/

LessTif            libWindowsWM.a         libXfont.a
libXtst-6.dll.a
X11                libX11-6.dll.a         libXft.a            libXtst.dll.a
libDtPrint.a       libX11.dll.a           libXft.dll.a        libdps-1.dll.a
libDtPrint.dll.a   libXRes-1.dll.a        libXft.la           libdps.dll.a
libDtPrint.la      libXRes.dll.a          libXi-6.dll.a
libdpstk-1.dll.a
libExtraWINGs.a    libXTrap-6.dll.a       libXi.dll.a         libdpstk.dll.a
libFS-6.dll.a      libXTrap.dll.a         libXm.a             libfntstubs.a
libFS.dll.a        libXau.a               libXm.dll.a
libfontenc-1.dll.a
libGL-1.dll.a      libXaw-6.dll.a         libXm.la
libfontenc.dll.a
libGL.dll.a        libXaw-7.dll.a         libXmHTML.a         libglut.a
libGLU-1.dll.a     libXaw-8.dll.a         libXmHTML.dll.a     libglut.dll.a
libGLU.dll.a       libXaw.dll.a           libXmu-6.dll.a      libglut.la
libICE-6.dll.a     libXaw3d-7.dll.a       libXmu.dll.a
liboldX-6.dll.a
libICE.dll.a       libXaw3d.dll.a         libXmuu-1.dll.a     liboldX.dll.a
libMrm.a           libXcomposite-1.dll.a  libXmuu.dll.a
libpsres-1.dll.a
libMrm.dll.a       libXcomposite.dll.a    libXp-6.dll.a       libpsres.dll.a
libMrm.la          libXcursor-1.dll.a     libXp.dll.a         libwraster.a
libOSMesa-4.dll.a  libXcursor.dll.a       libXpm-4.dll.a      libwraster.la
libOSMesa.dll.a    libXdamage-1.dll.a     libXpm.dll.a
libxkbfile-1.dll.a
libSM-6.dll.a      libXdamage.dll.a       libXprintAppUtil.a
libxkbfile.dll.a
libSM.dll.a        libXdmcp.a             libXprintUtil.a
libxkbui-1.dll.a
libUil.a           libXevie-1.dll.a       libXrandr-2.dll.a   libxkbui.dll.a
libUil.dll.a       libXevie.dll.a         libXrandr.dll.a     locale
libUil.la          libXext-6.dll.a        libXrender-1.dll.a  pkgconfig
libWINGs.a         libXext.dll.a          libXrender.dll.a
libWMaker.a        libXfixes-3.dll.a      libXt-6.dll.a
libWUtil.a         libXfixes.dll.a        libXt.dll.a

I've tried to compile this and obpager for windowmaker and both give similar
errors/issues.  Have I missed something?