From: "Jong B. Lee" <jbdoll@kepri.re.kr>
To: "cygwin" <cygwin@cygwin.com>
Cc: <cwilson@ece.gatech.edu>
Subject: libpng problem -- png_read_destroy
Date: Tue, 02 Jan 2001 21:06:00 -0000 [thread overview]
Message-ID: <002b01c07543$1b93bee0$8b0c4ea8@kepri.re.kr> (raw)
Happy New Year !!
I'm writing a program using png library.
But, gcc complains that png_read_destroy and png_write_destroy are undefined.
How can I fix it?
I have the latest and clean cygwin installed.
Here's a sample c file and link error :
------------------------------------
/* sample png.c */
#include <png.h>
int main()
{
#ifdef __CYGWIN__
#define PNG_STATIC
#endif
png_structp pp;
png_infop info;
png_read_end(pp, info);
png_read_destroy(pp, info, NULL);
png_write_destroy (pp);
return 0;
}
-------------------------------------
$ gcc -W -g png.c -lpng -o png
/c/WINDOWS/TEMP/ccFXASfF.o(.text+0x30): undefined reference to `png_read_destroy'
/c/WINDOWS/TEMP/ccFXASfF.o(.text+0x3f): undefined reference to `png_write_destroy'
collect2: ld returned 1 exit status
===============================
next reply other threads:[~2001-01-02 21:06 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-01-02 21:06 Jong B. Lee [this message]
2001-01-02 21:45 ` Charles Wilson
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