Re: libX11.so issues on Sparc Solaris

[Marc Aurele La France <tsi@xxxxxxxxxxx>]

On Sun, 23 Jul 2006, Raymond Meyer wrote:

> Hi, I think there is an issue with lib/libX11.so libraries on sparc solaris.
> Some applications that link to libX11 fail with the following error:

> Undefined                       first referenced
> symbol                             in file
> getservbyname_r                     /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> getsockname                         /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> gethostbyname_r                     /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> socket                              /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> authdes_create                      /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> setsockopt                          /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> connect                             /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> xdrmem_create                       /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> getpeername                         /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> freeaddrinfo                        /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> inet_addr                           /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> inet_pton                           /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> gai_strerror                        /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> shutdown                            /opt/pkg.obj/graphics/libwmf/work.ultra10/.buildlink/lib/libX11.so
> ld: fatal: Symbol referencing errors. No output written to .libs/wmf2eps
> *** Error code 1

> I think the problem here is attributed to the fact that libX11.so should have been
> linked with: -lsocket -lnsl, those libraries contain the missing symbols.

> As you can see below, solaris' /usr/openwin/lib/libX11.so is linked to libsocket and
> libnsl

> [root@ultra10] ldd /opt/pkg/xfree86/lib/libX11.so
>        mpss.so.1 =>     /usr/lib/mpss.so.1
>        libdl.so.1 =>    /lib/libdl.so.1
>        libc.so.1 =>     /lib/libc.so.1
>        libgen.so.1 =>   /lib/libgen.so.1
>        libm.so.2 =>     /lib/libm.so.2
>        /platform/SUNW,Ultra-5_10/lib/libc_psr.so.1

> [root@ultra10] ldd /usr/openwin/lib/libX11.so
>        mpss.so.1 =>     /usr/lib/mpss.so.1
>        libsocket.so.1 =>        /lib/libsocket.so.1
>        libnsl.so.1 =>   /lib/libnsl.so.1
>        libXext.so.0 =>  /usr/openwin/lib/libXext.so.0
>        libdl.so.1 =>    /lib/libdl.so.1
>        libc.so.1 =>     /lib/libc.so.1
>        libgen.so.1 =>   /lib/libgen.so.1
>        libmp.so.2 =>    /lib/libmp.so.2
>        libmd5.so.1 =>   /lib/libmd5.so.1
>        libscf.so.1 =>   /lib/libscf.so.1
>        libdoor.so.1 =>  /lib/libdoor.so.1
>        libuutil.so.1 =>         /lib/libuutil.so.1
>        libm.so.2 =>     /lib/libm.so.2
>        /platform/SUNW,Ultra-5_10/lib/libc_psr.so.1
>        /platform/SUNW,Ultra-5_10/lib/libmd5_psr.so.1

Well, the following will most likely fix this:

- cd <build_dir>/xc/lib/X11
- In Imakefile and Makefile, add $(EXTRA_LIBRARIES) to the REQUIREDLIBS
  setting
- find . -name libX11\* -print | xargs rm
- make install
- rebuild the application.

However, I'm not sure this is the right thing to do.  For one, this problem 
doesn't show up with apps built through imake.  In fact, adding 
EXTRA_LIBRARIES as above causes imake-generated apps to be linked twice 
against libsocket and libnsl.  Now that's not an issue on Solaris, but it 
could be on some other system with a non-null EXTRA_LIBRARIES, because the 
above changes the order in which libraries are found.

Thus, I'm inclined to call this problem a bug, or an oversight, in apps built 
with GNU's automangle suite, that have not been properly ported to systems 
whose socket library is not part of libc.

Marc.

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