Xref: news2.mv.net comp.os.msdos.djgpp:7851 From: "John M. Aldrich" Newsgroups: comp.os.msdos.djgpp Subject: Re: Problem with including librairies! Date: Sun, 25 Aug 1996 01:01:40 -0700 Organization: Three pounds of chaos and a pinch of salt Lines: 40 Message-ID: <32200864.5956@cs.com> References: NNTP-Posting-Host: ppp220.cs.com Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit To: LEBLANC MARTINE DJ-Gateway: from newsgroup comp.os.msdos.djgpp LEBLANC MARTINE wrote: > > I make a program using libgrx20 and libsv, all functions of libgrx20 > include fine and I'm able to use it quite well. The problem popped up > when I incorporated the functions of libsv.a and the librairie itself for > modem support. I do include correctly the lib, (#include "libsv.h") and > add it to the makefile > > gcc libsv.a -O3 -o tacc.exe o/tacc.o o/window.o o/setup.o libgrx20.a This should look like the following: gcc -O3 -o tacc.exe o/tacc.o o/window.o o/setup.o -lgrx20 -lsv You MUST put the libraries to link AFTER all other entries on the command line. Also, unless libgrx20.a and libsv.a are in the same directory as your files, gcc shouldn't be able to find them if you specify them that way. Are you seeing 'no such file or directory' messages when you compile? If not, then you've put the libraries in the wrong place - they should go in the /lib directory of your DJGPP distribution. BTW, the correct way to link libraries is with the -l directive. The reason why they need to go last is that ld is a one-pass linker. It sees libsv.a first in the command line and knows that it is a library, so it searches for unresolved externals. Finding none, it then goes and links your .o files, only then finding the external references. Please read section 8.9 of the FAQ (v2/faq201b.zip); it gives a much fuller treatment of this subject. :) John -- ---------------------------------------------------------------------------- | John M. Aldrich, aka Fighteer I | fighteer AT cs DOT com | | Proud owner of what might one day | Plan: To make Bill Gates suffer | | be a spectacular MUD... | Tagline: | ----------------------------------------------------------------------------