Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com Message-ID: <002b01c07543$1b93bee0$8b0c4ea8@kepri.re.kr> From: "Jong B. Lee" To: "cygwin" Cc: Subject: libpng problem -- png_read_destroy Date: Wed, 3 Jan 2001 14:07:43 +0900 MIME-Version: 1.0 Content-Type: text/plain; charset="ks_c_5601-1987" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4522.1200 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4522.1200 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from base64 to 8bit by delorie.com id AAA02424 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 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 ===============================