From: ams AT ludd DOT luth DOT se (Martin Str|mberg)
Newsgroups: alt.comp.lang.learn.c-c++,comp.os.msdos.djgpp
Subject: Re: Aleggro example error! Error! Error!
Followup-To: alt.comp.lang.learn.c-c++,comp.os.msdos.djgpp
Date: 5 Apr 1999 10:52:23 GMT
Organization: University of Lulea, Sweden
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Arman (janwar AT indosat DOT net DOT id) wrote:
: 1.Why do I can't make *.exe from all allegro's example (*.c)? When I tried
: to compile, I got error message! Help me !!
: This is the error messages when I compile ex1.c with gcc:
: c:/djgpp/tmp\cccqxthj(.text+0x14):ex1.c: undefined reference to
: `allegro_init'
: c:/djgpp/tmp\cccqxthj(.text+0x19):ex1.c: undefined reference to
: `install_keyboar
: d'

[Klippa, klapp, kluppit more undefined references.]

: c:/djgpp/tmp\cccqxthj(.text+0xb9):ex1.c: undefined reference to `readkey'

Have you compiled allegro?

: 2. What is *.o file for ? How to make it?

What .o file?

A .c (c source code) file is compiled to form a .o (object) file,
which then is linked (perhaps with other .o files and libraries (.a
files)) to form the executable (in *DOZE .EXE files).

Example: "gcc -c my_code.c -o mycode.o -Wall".


Right,

							MartinS