🚀 go-pugleaf

Description:
	There is a problem with using sunview code and any loader which
	doesn't know how to deal with shared libraries in SunOS 4.0.*.
	In particular, g++, the Gnu C++ compiler.

	The sunwindow static libraries, /usr/lib/sunwindow.a and
	/usr/lib/libsunwindow_p.a, contain a reference to __DYNAMIC in
	the pf.o module.  Apparently, this is used to test for and
	implement, shared fonts.  Doing a static load using Sun's loader
	works because it understands the __DYNAMIC symbol and takes care
	of it.
Repeat-By:
	Fix the sunview header files to work for g++.

	Compile the following program

	#include "sunview.h"
	main()
	{
		Frame base;

		base = window_create(0, FRAME, FRAME_LABEL, "hello world!", 0);
		window_main_loop(base);
	}

	% g++ sunview.cc -lsuntool -lsunwindow -lpixrect
	... warning messages ...
	pf.o: Undefined symbol __DYNAMIC referenced from text
Fix:
	I reported this to Sun, but they called it a feature, not a bug,
	so I don't know if it will ever get fixed by Sun.

	To detect which libraries have the problem use:
		nm /usr/lib/lib*.a >/tmp/nm.all
	and look for references to __DYNAMIC.  Ideally, there should
	be none.

	There are two ways that I have found to fix the probem.

	1. Use ar to remove pf.o from /usr/lib/libsunwindow*.a.  This
	   is ok since there is another copy in libpixrect.a without
	   the __DYNAMIC reference.

	2. Force the loading of the libpixrect copy of pf.o by changing
	   the library load order.

	   g++ sunview.cc -lsuntool -lpixrect -lsunwindow -lpixrect

Jim Knutson
knutson@mcc.com
cs.utexas.edu!milano!knutson
-- 
Jim Knutson
knutson@mcc.com
cs.utexas.edu!milano!knutson