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From: "Dr. Xiangdong Wang" <xiangdong DOT wang AT charismathics DOT com>
To: <djgpp AT delorie DOT com>
Subject:  Help: Problem to link C++ program with ld
Date: Tue, 23 May 2006 09:01:22 +0200
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Reply-To: djgpp AT delorie DOT com


I wrote a small C++ code

int main()
{
	try
	{
		int a = 1;
		if ( a != 1) throw "a != 1";
	}
	catch(...)
	{
	}
	return 1;
} 

I can compile and link it with gxx
	gxx main.cpp

but if I link it with ld, 
	ld -lc -lstdcx -lsupcxx -lgcc main.o -o main.bin

I got a lot of "undefined reference":
	D:\DJGPP\BIN/ld.exe: warning: cannot find entry symbol start;
defaulting to 000018d0
	main.o(.text+0x37):main.cpp: undefined reference to
`__cxa_allocate_exception'
	main.o(.text+0x4a):main.cpp: undefined reference to `typeinfo for
char const*'
	main.o(.text+0x50):main.cpp: undefined reference to `__cxa_throw'
	main.o(.text+0x59):main.cpp: undefined reference to
`__cxa_begin_catch'
	main.o(.text+0x61):main.cpp: undefined reference to
`__cxa_end_catch'
	main.o(.eh_frame+0x12):main.cpp: undefined reference to
`__gxx_personality_v0'
	make.exe: *** [main.bin] Error 1

Does anybody have any suggestion for me ?

best regards


Dr. Xiangdong Wang (CTO)
Charismathics GmbH
47 sendlinger st
munich, germany 80331
Tel. +49 89 30906720
Fax. +49 89 30906729
Mobile: +49 177 4453742
xiangdong DOT wang AT charismathics DOT com
www.charismathics.com