From: firewind <firewind AT metroid DOT dyn DOT ml DOT org>
Newsgroups: comp.os.msdos.djgpp
Subject: Re: I don't know how to compile!
Date: 14 Aug 1997 00:25:19 GMT
Organization: Netcom
Lines: 11
Message-ID: <5stj9f$8hb@sjx-ixn5.ix.netcom.com>
References: <970813154204_1216939487 AT emout06 DOT mail DOT aol DOT com>
NNTP-Posting-Host: elp-tx2-12.ix.netcom.com
To: djgpp AT delorie DOT com
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Mega354 AT aol DOT com wrote:
> I'm only 14 and learning C++...and I need a compiler to compile the programs
> i make....and i have DJGPP....but i don't know that much....how can I make my
> code and tell the compiler to compile it....without it saying 'undefined
> reference to cout'..or something like that....I know i have the code
> right...i just don't know how to use DJGPP and i read the docs...but they are
> too comfusing..

If you find the "docs" confusing, you could at least look at the file 
README.1ST, which states clearly and concisely commonly used compilation
command lines.
earch I did (starting with the ORA book on make)
suggested to me that maybe the shell I *thought* I had just was not
being invoked for these lines.  Hence, the test makefile I originally
tried, which I must admit is contrived, was intended to test just what
*was* being invoked.  I got the text of it from the ORA book (p. 133,
in the section "Default Shell").

Proof of the pudding: The following works just fine:

bash.exe/stest$ MAKESHELL=$DJDIR/bin/sh.exe; export MAKESHELL
bash.exe/stest$ make cshell
echo h:/bin/sh.exe
h:/bin/sh.exe
if test -f makefile; then echo cshell; fi
cshell
bash.exe/stest$

MAKESHELL, according to the README.dos file, takes precedence over
both $SHELL and $COMSPEC.  So I can put the MAKESHELL setting into
DJGPP.ENV and solve my make problem without changing the value of
$SHELL at all.  My subshell syntax makefile also now works as
intended.

<Snipped>
>TANSTAAFL: you can't have all these goodies in the ported Make without 
>paying some price.  DOS is just too dumb, and GNU Make is just too 
>complex and full of features, to make that possible.  However, my 
>experience suggests that Makefiles that set SHELL inside rules are very 
>rare indeed.

But even makefiles that do *not* set the SHELL variable can be
affected, as I have seen with my subshell-syntax example.  Ah, well;
as you said, TANSTAAFL.  Mostly, everything *does* work as expected,
which is a rich and satisfying treat.

Thanks once again for your patience and support.

----------------------------------------------------
Peter J. Farley III (pjfarley AT dorsai DOT org)