>Number:         8417
>Category:       pkg
>Synopsis:       xforms on i386/ELF broken due to undefined references
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    pkg-manager (NetBSD software packages system bug manager)
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Wed Sep 15 14:50:00 1999
>Last-Modified:
>Originator:     John Darrow
>Organization:
	Computing Services
	Wheaton College, Wheaton, IL
>Release:        NetBSD i386/ELF (current-19990705+) using pkgsrc-19990913+
>Environment:
System: NetBSD jdarrowp5.wheaton.edu 1.4K NetBSD 1.4K (JDARROWP5) #0: Tue Sep 14 13:00:02 CDT 1999 jdarrow@jdarrowpiii.wheaton.edu:/var/src/sys/arch/i386/compile/JDARROWP5 i386


>Description:
	The xforms ELF library for i386 includes a few undefined
	references to glX functions.  This causes compiles which use it
	to fail as follows (example from math/xldlas package, fixed for
	xpkgwedge):

cc -O2 -DXFORMS86 -DPREFIX=\"/usr/pkg\" -I/usr/X11R6/include -I/usr/pkg/include/X11 xldlas.o frontend.o setstate.o files.o data.o log.o graph.o analysis.o help.o generate.o tips.o tests.o filters.o -o xldlas -L/usr/X11R6/lib -Wl,-R/usr/X11R6/lib -lX11 -lm -L/usr/pkg/lib -Wl,-R/usr/pkg/lib -lxforms
graph.o: In function `do_logo_plot':
graph.o(.text+0xc71): warning: tmpnam() possibly used unsafely, use mkstemp() or mkdtemp()
/usr/pkg/lib/libxforms.so: undefined reference to `glXQueryExtension'
/usr/pkg/lib/libxforms.so: undefined reference to `glXMakeCurrent'
/usr/pkg/lib/libxforms.so: undefined reference to `glXChooseVisual'
/usr/pkg/lib/libxforms.so: undefined reference to `glXDestroyContext'
/usr/pkg/lib/libxforms.so: undefined reference to `glXCreateContext'
collect2: ld returned 1 exit status
*** Error code 1

Stop.

	nm -A /usr/X11R6/lib/*.so |grep glX yields nothing.  (This is with
	xsrc 19990909, including XFree86 3.3.5)

	Remembering a recent thread in port-i386 about GLX, I installed
	the graphics/Mesa package.  nm then found the symbols in question
	in libGL.so (aka libMesaGL.so).  Adding "-lGL -lXext" to the
	cc command in question allowed the program to compile and run.

	However, even if the xforms pkg is made to depend on Mesa if on
	i386/ELF,  having to add conditional patches to all packages which
	depend on xforms (currently comms/xisp, databases/xmysql{,admin},
	mail/{xfmail,xldlas}, and print/lyx) to include the necessary
	Mesa libraries (-lGL and its own -lXext dependency) if on i386/ELF
	is both difficult (for example, math/xldlas would need two
	patch-aa's, one without -lGL -lXext for non-ELF, one with them for
	ELF) and, seemingly, a Gross Hack.

	Also, if any of these packages use some sort of configure method to
	detect xforms (as does audio/rplay, which, though not currently
	forced to do so by our pkgsrc, will build an xrplay module if it
	finds xforms ( *** WEAK DEPENDENCY ALERT *** )), getting things
	right will be even harder.
	
>How-To-Repeat:
	Attempt to compile an xforms-using package on i386/ELF.
>Fix:
	For now, probably disable xforms for batch builds on i386/ELF
	until either 1. the xforms binary is fixed to not reference glx,
	or 2. conditional patches for Mesa can be added to all the
	xforms-using packages.
>Audit-Trail:
>Unformatted: