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Date: Mon, 24 Mar 2003 18:43:21 +0800 (GMT-8)
From: Sim Joon <esim AT comp DOT nus DOT edu DOT sg>
To: cygwin AT cygwin DOT com
Subject: Linking VC++ DLL 
Message-ID: <Pine.GSO.4.21.0303241837570.9209-100000@sf0.comp.nus.edu.sg>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi,

I have already compiled and linked the following function

extern "C" __declspec(dllexport) int hello()
{
	printf("Hello World!\n");
	return 345;
}

in a VC++ DLL.

I have also successfully linked and created the import library in Cygwin,
libhallo.a

However,
when I compile and run the following code
using
gcc hello.c -lhallo

extern int hello();

int main()
{
	printf("What is this? %d\n", hello());
}

All I get in return is (under Cygwin):
What is this? 345

345 demonstrates that the function was called and correctly returned but
why is it that the printf statement in the function hello() went missing?
I have tried to run other VC compiled program but had no problem in
getting printf statements to work under the Cygwin environment. Would
appreciate if anyone can suggest what could be the possible
problem. Thanks!

regards
Edward



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