Re: The X11 library '-lX11' could not be found

[J.H.M. Dassen (Ray)]

On Tue, Sep 23, 2003 at 13:15:25 -0700, John Urness wrote:
> Here is a partial output from the config.log from where XOpenDisplay first
> shows up:
> 
>  configure:13890: g++ -o conftest -g -O2 -fpermissive   conftest.cc
> -L/usr/X11/lib -R/usr/X11/lib -lX11 >&5
>   1102  Undefined                       first referenced
>   1103   symbol                             in file
>   1104  socket                              /usr/X11/lib/libX11.so
>   1105  getpeername                         /usr/X11/lib/libX11.so

OK, so libX11 is being found, but it depends (unexpectedly) on other
libraries (probably: -lsocket) for socket(), getpeername() etc. 

Under Linux with a GNU build environment one can link a library like libX11
in a way that it pulls in such dependencies automatically (through "NEEDED"
entries in the dynamic section of the libX11.so ELF file); this works by
adding "-l"s for those libraries to the link command that produces
libX11.so, something like
        gcc -Wl,shared -o libX11.so.1.2.3 foo.o bar.o baz.o -lsocket -ldl
Presumably something similar can be done on Solaris to ensure that libX11
pulls in its dynamic library dependencies.

HTH,
Ray
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