pkg-config and libX11.so: undefined reference to `XdmcpWrap'

[Shawn Starr]

I've had this issue as well. Some apps and other components of Xorg need 
-lXdmcp checked in their configure scripts. This seems to be missing.

Shawn.

On Tuesday 21 February 2006 17:59, Jeremy C. Reed wrote:
> As I mentioned in previous email, I now have xthreadlib=-pthread
> (XTHREADLIB=-pthread) for my DragonFly build.
>
> But now I get when building app/x11perf (or ico too):
>
> /home/reed/xorg/lib/libX11.so: undefined reference to `XdmcpWrap'
>
> This is my libX11:
>
> pkgbox:/home/reed/modular-xorg> ldd /home/reed/xorg/lib/libX11.so
> /home/reed/xorg/lib/libX11.so:
>         libXau.so.6 => /home/reed/xorg/lib/libXau.so.6 (0x28219000)
>         libXdmcp.so.6 => /home/reed/xorg/lib/libXdmcp.so.6 (0x2821c000)
>         librpcsvc.so.3 => /usr/lib/librpcsvc.so.3 (0x28221000)
>         libc.so.6 => /usr/lib/libc.so.6 (0x28076000)
>
> I manually modified the Makefile to:
> LIBS = -lXdmcp
> and it built fine.
>
> Now I looked at the config.log and saw many references to other modular
> X.org components installed previously:
>
> configure:23303: gcc -o conftest -g -O2   conftest.c -lXdmcp
> -Wl,-R/home/reed/pk
> g/lib -L/home/reed/pkg/lib -lXdmcp   -lrpcsvc  >&5
> /var/tmp//ccE07gc6.o(.text+0xd): In function `main':
> /home/reed/modular-xorg/lib/X11/conftest.c:51: undefined reference to
> `XdmcpWrap'
> ...
> configure:23458: checking keysymdef.h
> configure:23482: result: /home/reed/pkg/include/X11/keysymdef.h
> ...
> pkg_cv_XKBPROTO_CFLAGS='-I/home/reed/pkg/include  '
> ...
> pkg_cv_XDMCP_LIBS='-Wl,-R/home/reed/pkg/lib -L/home/reed/pkg/lib -lXdmcp  '
> ...
> pkg_cv_X11_LIBS='-Wl,-R/home/reed/pkg/lib -L/home/reed/pkg/lib -lXau  '
> ...
> pkg_cv_BIGFONT_CFLAGS='-I/home/reed/pkg/include  '
>
>
>
> Now I see (with objdump -x) that XdmcpWrap is defined in my new libXdmcp
> but not the old installed version.
>
> My pkg-config's default path sees those first.
>
> Where does the modular X.org build define PKG_CONFIG_PATH to see its own
> installation prefix?
>
> As a work-around, I removed all the packages installing those old pc
> files.
>
> It doesn't seem like I should have to do that.
>
> Another alternatives is to install another pkg-config binary that doesn't
> hard-code my /home/reed/pkg/lib/pkg-config directory or set
> PKG_CONFIG_PATH.
>
> But then it wouldn't see my freetype2.
>
> What do you all do when you have multiple modular X.org installations on
> one system? Do you use different pkg-config tools?
>
>  Jeremy C. Reed
>
>  	  	 	 Open source, Unix, *BSD, Linux training
> 	  	 	 http://www.pugetsoundtechnology.com/
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