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Date: Tue, 2 May 2000 17:18:29 +0200 (MET DST)
From: Bobak Csaba <h531649 AT sirius DOT cab DOT u-szeged DOT hu>
X-Sender: h531649 AT sirius
To: cygwin AT sourceware DOT cygnus DOT com
Subject: Newbie: libProblem.a
Message-ID: <Pine.GSO.4.21.0005021707150.22009-100000@sirius>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII

Hi all!

After searching the archives I have to ask this:
How do I compile my prg of two libs and an executable if one of the libs
calls functions from the other one?
Simplified case:

a.c:
...
int foo_a(int x)
{
 return x+1;
}
...

b.c:
...
extern foo_a(int);
...
int foo_b(int y)
{
 return foo_a(y-1);
}
...

main.c:
...
extern foo_b(int);
...
cout<<foo_b(3);
...

What I tried:
gcc -c a.c
ar cq liba.a a.o
ranlib liba.a
gcc -c b.c
ar cq libb.a b.o
ranlib libb.a
gcc -o main main.c -L. -la -lb

The last command gave an 'undefined' with foo_a
What did I do wrong?


		Csaba


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