Date: Mon, 06 Jan 1997 20:35:41 +1100 (EST) From: peter.jeremy@alcatel.com.au To: FreeBSD-gnats-submit@freebsd.org Subject: bin/2382: curses.h / -lcurses incompatible with C++ Message-ID: <199701060935.UAA27320@vk2pj.alcatel.com.au> Resent-Message-ID: <199701060940.BAA23260@freefall.freebsd.org>
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>Number: 2382
>Category: bin
>Synopsis: curses.h / -lcurses incompatible with C++
>Confidential: no
>Severity: non-critical
>Priority: low
>Responsible: freebsd-bugs
>State: open
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Mon Jan 6 01:40:03 PST 1997
>Last-Modified:
>Originator: Peter Jeremy
>Organization:
Peter Jeremy (VK2PJ) peter.jeremy@alcatel.com.au
Alcatel Australia Limited
41 Mandible St Phone: +61 2 9690 5019
ALEXANDRIA NSW 2015 Fax: +61 2 9690 5247
>Release: FreeBSD 2.1-STABLE i386
>Environment:
none
>Description:
The prototypes in /usr/include/curses.h are not protected in an extern "C" {}
block. This causes C++ programs using -lcurses to report undefined symbols
during linking.
>How-To-Repeat:
$ cat > x.C <<__EOF__
#include "curses.h" // since > < gets eaten
int main(int argc, char **argv)
{
WINDOW *w;
w = initscr();
}
__EOF__
$ gcc x.C -lcurses
/tmp/cc0142051.o: Undefined symbol `_initscr__Fv' referenced from text segment
$
>Fix:
*** /cdrom/usr/src/lib/libcurses/curses.h Sat Sep 2 13:41:59 1995
--- /usr/src/lib/libcurses/curses.h Wed Dec 11 20:43:18 1996
***************
*** 277,282 ****
--- 277,283 ----
#define winch(w) \
((w)->lines[(w)->cury]->line[(w)->curx].ch & 0377)
+ __BEGIN_DECLS
/* Public function prototypes. */
int box __P((WINDOW *, int, int));
int cbreak __P((void));
***************
*** 388,392 ****
--- 389,394 ----
int tgetflag __P((const char *));
char *tgetstr __P((const char *, char **));
char *tgoto __P((const char *, int, int));
+ __END_DECLS
#endif /* !_CURSES_H_ */
(And the same change to /usr/include/curses.h)
>Audit-Trail:
>Unformatted:
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