Date: Sat, 27 Jan 2001 09:49:45 +0200
From: "Eli Zaretskii" <eliz AT is DOT elta DOT co DOT il>
Sender: halo1 AT zahav DOT net DOT il
To: "Donald Stevens" <dstevens6 AT qwest DOT net>
Message-Id: <9003-Sat27Jan2001094945+0200-eliz@is.elta.co.il>
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CC: djgpp AT delorie DOT com
In-reply-to: <Keoc6.1353$gQ5.406075@news.uswest.net> (dstevens6@qwest.net)
Subject: Re: Undefined reference compiling modetest.c
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> From: "Donald Stevens" <dstevens6 AT qwest DOT net>
> Newsgroups: comp.os.msdos.djgpp
> Date: Fri, 26 Jan 2001 16:59:50 -0700
> 
> I have used unzip32 and put the following in c:\djgpp:
> djdev203, bnu2951b. gcc2952b. ,al3791b., txi40b., grx23., grx23fnt.
> I put the various set=    lines into autoexec.bat and rebooted.
> Now when I give the command:
> gcc -o modetest.exe modetest.c
> I get a lot of:
> undefined reference to GrColorInfo      and
> undefined reference to GrHLine
> what is missing?

You need to tell GCC to look into libgrx20.a library.  It doesn't know
that by default.  The correct command is:

     gcc -o modetest.exe modetest.c -lgrx20