GNU g++ problems on SCO Unix ODT

[David Macklem]

In the last little while I've compiled gcc, g++ and libg++ on an SCO
Unix System V machine (actually SCO Open Desktop 1.0) and I am running
into problems with g++/libg++.

I believe that gcc has been ported correctly because after making the
compiler I compiled about 10 meg of source and ran some relatively
extensive regression tests on the result with no problems.

However, g++ is asserting and then dumping core when trying to compile
libg++/tests/tFix16.cc and tFix24.cc. I have narrowed down the
problem to the following line and ones like it:

	mantissa(a)=8192;

Whether or not optimization is used in the gcc, g++ or libg++ build
doesn't make a difference to the above result.

Since I'm neither a C++ expert nor a GNU-phile perhaps someone could
tell where to start looking as I'm totally stumped now.

Some of the particulars of the port are:

neither gas nor gnu-ld
gcc: 	1.37.0 	
	- configured with 'config.gcc sysv-i386'
	- no 80387 instructions
	- changes to tm.h: 	#define NO_DOLLAR_IN_LABEL 1
				#define TARGET_DEFAULT 0
	- (hard-params cannot determine precision for float, double
	  or long double expressions, for some reason!!!)
	- OBSTACK=obstack.o
	- system malloc.o,  not GNU malloc.o

g++:	1.37.2  
	- configured with 'config.g++ sysv-i386' 
	- compiled with:	-DFASCIST_ASSEMBLER -DUSE_COLLECT -DCOFF
				-DUSG_STDIO

libg++:	1.37.0 	(I can't find 1.37.2 - no Internet access)
	- g++-include/stdio.h changes:
				#define IOBUF_FLAG_TYPE	char
				#define _NFILE 60
				#define SPRINTF_RETURNS_INT

For those who might be interested here is the output from 'make tests'.

(cd tests;      make checktests GXX="g++" GXXFLAGS="-DUSG
-I/u/gnu/libg++-1.37.0/g++-include  -v -O -fstrength-reduce
-felide-constructors -fschedule-insns -fdelayed-branch
-fsave-memoized    " GXXLDFLAGS="-L/u/gnu/libg++-1.37.0/src -lg++ -lm "
LIBDIR="/usr/local/lib" SRCIDIR="/u/gnu/libg++-1.37.0/g++-include"
CC="gcc" CFLAGS="-DUSG -I/usr/local/lib/gcc-include -I/usr/include
-I/u/gnu/libg++-1.37.0/g++-include  -O -fstrength-reduce
-fdelayed-branch    " RANLIB="echo" LDXX=""
GXXCRT1="/usr/local/lib/crt1+.o" MAKE="make" prefix="/usr/local")

g++ -DUSG -I/u/gnu/libg++-1.37.0/g++-include  -v -O -fstrength-reduce
-felide-constructors -fschedule-insns -fdelayed-branch -fsave-memoized
-c  tFix16.cc
g++ version 1.37.2 alpha 2 (based on GCC 1.37)

/usr/local/lib/gcc-cpp -+ -v -DUSG -I/u/gnu/libg++-1.37.0/g++-include
-undef -D__GNUC__ -D__GNUG__ -D__cplusplus -Dunix -Di386 -D__unix__
-D__i386__ -D__OPTIMIZE__ tFix16.cc /usr/tmp/cca01919.cpp 
GNU CPP version 1.37
/usr/local/lib/gcc-cc1plus /usr/tmp/cca01919.cpp -quiet -dumpbase
tFix16.cc -fstrength-reduce -felide-constructors -fschedule-insns
-fdelayed-branch -fsave-memoized -O -version -o /usr/tmp/cca01919.s
GNU C++ version 1.37.2 alpha 2 (based on GCC 1.37) (80386, ATT syntax)
compiled by GNU C version 1.37.
default target switches:
Failed assertion `codel != REFERENCE_TYPE' at line 5510 of
`cplus-typeck.c'.
g++: Program cc1plus got fatal signal 6.
-- 
David Macklem 				Siemens Nixdorf Information Systems Ltd.
davidm at nixtor.uucp			1131a Leslie Street, Toronto, Ontario
uunet!mnetor!nixtor!davidm		Canada M3C 3L8       (416-449-0035)