Windows and Linux

**Richard Heathfield** · Mar 29 '07, 03:15 PM

Re: Windows and Linux

Bastie said:

Hello,
>
I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?

Why would you need to? Just write the code portably.

--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999

http://www.cpax.org.uk

email: rjh at the above domain, - www.

**Bastie** · Mar 29 '07, 03:35 PM

Re: Windows and Linux

On 29 Mrz., 17:09, Richard Heathfield <r...@see.sig.i nvalidwrote:

Bastie said:
>

Hello,

>

I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?

>
Why would you need to? Just write the code portably.
>

Not all code are so portably - for example the code to read all files
in the directory need (i think so) under win the winapi...

**Richard Heathfield** · Mar 29 '07, 03:35 PM

Re: Windows and Linux

Bastie said:

On 29 Mrz., 17:09, Richard Heathfield <r...@see.sig.i nvalidwrote:

>Bastie said:
>>

Hello,

>>

I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I
use ONE makefile under both os - how can I detect the os in the
make script?

>>
>Why would you need to? Just write the code portably.
>>

Not all code are so portably - for example the code to read all files
in the directory need (i think so) under win the winapi...

Easy - just isolate the non-portable bits into separate modules, write
two versions with the same name (e.g. dirwalk.c), keep one of them on
the Win32 system and the other on the Linux system, and your makefile
stays the same on both systems. No worries.

--
Richard Heathfield
"Usenet is a strange place" - dmr 29/7/1999

http://www.cpax.org.uk

email: rjh at the above domain, - www.

**Bastie** · Mar 29 '07, 03:45 PM

Re: Windows and Linux

On 29 Mrz., 17:09, Richard Heathfield <r...@see.sig.i nvalidwrote:

Bastie said:
>

Hello,

>

I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?

>
Why would you need to? Just write the code portably.
>

Not all code are so portably - for example the code to read all files
in the directory need (i think so) under win the winapi...

**mark_bluemel@pobox.com** · Mar 29 '07, 04:05 PM

Re: Windows and Linux

On 29 Mar, 15:50, "Bastie" <Real.Bas...@go oglemail.comwro te:

Hello,
>
I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?
>
Has anybody an example?
Thanks

<OT>
Look at GNU Autoconf perhaps? But it may be overkill.
</OT>

**Pierre Asselin** · Mar 29 '07, 04:35 PM

Re: Windows and Linux

Bastie <Real.Bastie@go oglemail.comwro te:

I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?

I don't think you can. Windows nmake is incompatible with *nix make.

When that came up for me I learned a bit of autoconf, enough to
generate a parametrized Linux Makefile and config.h . On the
Windows side I installed mingw and msys so I could run the configure
script. That gave me a Windows config.h and a Makefile. I can
build with msys but I need to target Visual Studio, so I ditched
the Makefile and kept just the config.h to put in a Studio project
generated from scratch (hate those wizards!).

--
pa at panix dot com

**Mark McIntyre** · Mar 29 '07, 09:25 PM

Re: Windows and Linux

On Thu, 29 Mar 2007 16:33:52 +0000 (UTC), in comp.lang.c ,
pa@see.signatur e.invalid (Pierre Asselin) wrote:

>Bastie <Real.Bastie@go oglemail.comwro te:
>

>I need to code some libraries for win and linux os and hope make or
>somethink can help me to automate my build process. But how can I use
>ONE makefile under both os - how can I detect the os in the make
>script?

>
>I don't think you can. Windows nmake is incompatible with *nix make.

Neither nmake nor make are part of the OS. Versions of gnu make exist
for multiple platforms.

>When that came up for me I learned a bit of autoconf, enough to
>generate a parametrized Linux Makefile and config.h .

Yup.
--
Mark McIntyre

"Debugging is twice as hard as writing the code in the first place.
Therefore, if you write the code as cleverly as possible, you are,
by definition, not smart enough to debug it."
--Brian Kernighan

**CBFalconer** · Mar 30 '07, 02:25 AM

Re: Windows and Linux

Pierre Asselin wrote:

Bastie <Real.Bastie@go oglemail.comwro te:
>

>I need to code some libraries for win and linux os and hope make
>or somethink can help me to automate my build process. But how
>can I use ONE makefile under both os - how can I detect the os
>in the make script?

>
I don't think you can. Windows nmake is incompatible with *nix make.

So what? Just use gnu make on both systems. It's available.

--
Chuck F (cbfalconer at maineline dot net)
Available for consulting/temporary embedded and systems.
<http://cbfalconer.home .att.net>

--
Posted via a free Usenet account from http://www.teranews.com

**Bastie** · Mar 30 '07, 03:55 AM

Re: Windows and Linux

On 29 Mrz., 23:21, Mark McIntyre <markmcint...@s pamcop.netwrote :

On Thu, 29 Mar 2007 16:33:52 +0000 (UTC), in comp.lang.c ,
>
p...@see.signat ure.invalid (Pierre Asselin) wrote:

Bastie <Real.Bas...@go oglemail.comwro te:

>

I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?

>

I don't think you can. Windows nmake is incompatible with *nix make.

>
Neither nmake nor make are part of the OS. Versions of gnu make exist
for multiple platforms.
>

When that came up for me I learned a bit of autoconf, enough to
generate a parametrized Linux Makefile and config.h .

>

OK, if I use gno make how can I test the os where make running:

[pseudocode]
IF OS==WIN
use header-path from VC
ELSE IF OS==*NIX
user header-path from GCC
....
END-IF
[/pseudocode]

**Nelu** · Mar 30 '07, 05:35 PM

Re: Windows and Linux

On Mar 29, 11:49 pm, "Bastie" <Real.Bas...@go oglemail.comwro te:

On 29 Mrz., 23:21, Mark McIntyre <markmcint...@s pamcop.netwrote :
>
>
>

On Thu, 29 Mar 2007 16:33:52 +0000 (UTC), in comp.lang.c ,

>

p...@see.signat ure.invalid (Pierre Asselin) wrote:

>Bastie <Real.Bas...@go oglemail.comwro te:

>

>I need to code some libraries for win and linux os and hope make or
>somethink can help me to automate my build process. But how can I use
>ONE makefile under both os - how can I detect the os in the make
>script?

>

>I don't think you can. Windows nmake is incompatible with *nix make.

>

Neither nmake nor make are part of the OS. Versions of gnu make exist
for multiple platforms.

>

>When that came up for me I learned a bit of autoconf, enough to
>generate a parametrized Linux Makefile and config.h .

>
OK, if I use gno make how can I test the os where make running:
>
[pseudocode]
IF OS==WIN
use header-path from VC
ELSE IF OS==*NIX
user header-path from GCC
...
END-IF
[/pseudocode]

wxWidgets seems to have solved the problem with templates for
different platforms and make applications. QT has a platform specific
makefile generator with qmake from the .pro project file.
Unfortunately they're both for C++, thus OT here. However, you can
take a look at what wxWidgets is doing and, maybe, you can adapt that
to your needs. At the same time, both wxWidgets and QT are supposed to
be cross platform so they don't have to deal with including platform
specific safeguards in the make files.

--
Ioan - Ciprian Tandau
tandau _at_ freeshell _dot_ org (hope it's not too late)
(... and that it still works...)

**Jorgen Grahn** · Mar 31 '07, 07:17 PM

Re: Windows and Linux

On 29 Mar 2007 20:49:35 -0700, Bastie <Real.Bastie@go oglemail.comwro te:
....

OK, if I use gno make

It's "Gnu make" or "GNU make", not "gno make".

how can I test the os where make running:
>
[pseudocode]
IF OS==WIN
use header-path from VC
ELSE IF OS==*NIX
user header-path from GCC
...
END-IF
[/pseudocode]

You are worrying too much, I think. Firstly, gcc and the MS compilers
will both have a sensible default search paths for include files.

Secondly, the compilers themselves will define preprocessor symbols
which you can ifdef on, in the source code, if needed. But read the
"#ifdef considered harmful" paper by Henry Spencer et al.

Thirdly, why not have two different makefiles for the different
environments? If what you do isn't complex, neither of them will be
complex, either. And you can always solve that later, if needed.

/Jorgen

--
// Jorgen Grahn <grahn@ Ph'nglui mglw'nafh Cthulhu
\X/ snipabacken.dyn dns.org R'lyeh wgah'nagl fhtagn!

**verdverm@gmail.com** · Apr 1 '07, 10:55 AM

Re: Windows and Linux

On Mar 29, 10:50 am, "Bastie" <Real.Bas...@go oglemail.comwro te:

Hello,
>
I need to code some libraries for win and linux os and hope make or
somethink can help me to automate my build process. But how can I use
ONE makefile under both os - how can I detect the os in the make
script?
>
Has anybody an example?
Thanks

you might try checking out QT by trolltech, one code for Win,*nix,Mac
it is C++ based, but the signals/slots are pretty cool

Windows and Linux

Windows and Linux

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