From kdevelop  Fri Nov 24 13:17:56 2000
From: "W. Tasin" <tasin () e-technik ! fh-muenchen ! de>
Date: Fri, 24 Nov 2000 13:17:56 +0000
To: kdevelop
Subject: Re: Use of own C functions with Qt projects
X-MARC-Message: https://marc.info/?l=kdevelop&m=97507393309270

Fabrizio Santini wrote:
> 
> Hi,
> I need to use some my C function in a Qt project.
> But when I try to include and build them, the compiler
> answers:
> 
> gcc -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/lib/qt/include
> -I/usr/X11R6/include     -O0 -g3 -Wall    -c plates.c
> /bin/sh ../libtool --mode=link g++  -O0 -g3 -Wall      -o plates4linux
> -L/usr/X11R6/lib   plates.o neural.o imageproc.o debug.o
> plates4linuxview.o plates4linux.o main.o plates4linuxview.moc.o
> plates4linux.moc.o  -lqt -lXext -lX11
> g++ -O0 -g3 -Wall -o plates4linux plates.o neural.o imageproc.o debug.o
> plates4linuxview.o plates4linux.o main.o plates4linuxview.moc.o
> plates4linux.moc.o  -L/usr/X11R6/lib -lqt -lXext -lX11
> plates4linux.o: In function `Plates4Linux::_RunPlatesRecognition(void)':
> /home/fabrizio/projects/plates4linux/plates4linux/plates4linux.cpp:340:
> undefined reference to `B(void)'
> /home/fabrizio/projects/plates4linux/plates4linux/plates4linux.cpp:340:
> undefined reference to `B(void)'
> collect2: ld returned 1 exit status
> make: *** [plates4linux] Error 1
> *** failed ***
> 
> where B is the C function declared in a <file>.c with <header>.h as
> 
> int B(void);
> 
> Can you help me?

Hi,

did you declared the follow in your header?
-----

#ifdef __cplusplus
extern "C" {
#endif

int B(void);

#ifdef __cplusplus
}
#endif

-----

Ciao

Walter
> 
> -- Fabrizio Santini
> 
> -
> to unsubscribe from this list send an email to kdevelop-request@kdevelop.org with the following body:
> unsubscribe »your-email-address«

--
  The KDevelop project: tasin@kdevelop.de - http://www.kdevelop.org
--
oohhh sveglia.... il mondo e' ammalato, ma x colpa di chi.........
(Zucchero)
:-------W. Tasin, FB
04,FHM-------------------PGP-KeyID:0x7961A645----------:
<Key-Fingerprint: 1610 835F 0080 32F4 6140  6CF7 A7D0 44CD 7961A645>
<http://wwwkeys.pgp.net:11371/pks/lookup?op=index&search=0x7961A645&fingerprint=on>

-
to unsubscribe from this list send an email to kdevelop-request@kdevelop.org with the following body:
unsubscribe »your-email-address«