You can use __CYGWIN__ to identify Cygwin (two trailing and leading
underscores), and you can use __GNUC__ to identify gcc or g++.

============================================
Michael Gogins
gogins at pipeline period com
Irreducible Productions
CsoundVST, an extended version of Csound for programming music and sound
Available at http://sourceforge.net/projects/csound/
============================================


----- Original Message ----- 
From: "steven" 
To: "Csound Developers Discussion List" 
Sent: Tuesday, December 02, 2003 6:27 PM
Subject: [CSOUND-DEV:3610] -mno-cygwin and csound4 on win2k, autoconf


> Hi all,
>
> Using -mno-cygwin with the autoconf build there is an error I get that
> holds up the build in main.c:
>
> #if defined(HAVE_FLTK) && (defined(LINUX) || defined(SGI) || defined(sol))
>     if (sig == SIGALRM) return;
> #elif defined(FLTK_GUI) && (!defined(_MSC_VER))
>     if (sig == SIGALRM) return;
> #endif
>
> I've gotten past it with:
>
> #if !defined(WIN32)
> #if defined(HAVE_FLTK) && (defined(LINUX) || defined(SGI) || defined(sol))
>     if (sig == SIGALRM) return;
> #elif defined(FLTK_GUI) && (!defined(_MSC_VER))
>     if (sig == SIGALRM) return;
> #endif
> #endif
>
> but am not quite sure this is best.
>
> The reason the first set of #ifdef's doesn't compile with -mno-cygwin is
> that I don't believe there is a SIGALRM native to windows.  If using
> Cywin but not using -mno-cygwin, cygwin has emulation for SIGALRM, so if
> WIN32 is defined but cygwin is being used, then SIGALRM won't be
> compiled in at this section if using the second set of #ifdef's.   I'm
> not confident I know exactly what is the best way to reorder this stuff,
> so any help on this is greatly appreciated.
>
> thanks,
> steven
>

Hi Michael,

Thanks very much for the information! 

I think I just realized a possible simpler solution:

#if !defined(SIGALRM) 
	/* do nothing */
#elif...

But that's assuming SIGALRM is defined as a preprocessor macro on all
systems that use SIGALRM (that's the case on Linux and OSX at least, and
if I understand correctly, anything POSIX-based).  This seems like a
pretty good solution to me that will catch any possible compiling errors
for this section code.

I'll give it a go tomorrow, and if it works in the various cases I can
try I'll commit it as a bug-fix to csound4. 

Thanks!
steven



On Tue, 2003-12-02 at 17:51, Michael Gogins wrote:
> You can use __CYGWIN__ to identify Cygwin (two trailing and leading
> underscores), and you can use __GNUC__ to identify gcc or g++.

Steve, your plan worked under Cygwin.
It's compiling the rest of it now.
I'm probably going to have to change widgets.cpp again to match the system.
This time, I'm using __CYGWIN__, as thats defined in the compiler.
Bobby

stevenyi wrote:

>Hi Michael,
>
>Thanks very much for the information! 
>
>I think I just realized a possible simpler solution:
>
>#if !defined(SIGALRM) 
>	/* do nothing */
>#elif...
>
>But that's assuming SIGALRM is defined as a preprocessor macro on all
>systems that use SIGALRM (that's the case on Linux and OSX at least, and
>if I understand correctly, anything POSIX-based).  This seems like a
>pretty good solution to me that will catch any possible compiling errors
>for this section code.
>
>I'll give it a go tomorrow, and if it works in the various cases I can
>try I'll commit it as a bug-fix to csound4. 
>
>Thanks!
>steven
>
>
>
>On Tue, 2003-12-02 at 17:51, Michael Gogins wrote:
>  
>
>>You can use __CYGWIN__ to identify Cygwin (two trailing and leading
>>underscores), and you can use __GNUC__ to identify gcc or g++.
>>    
>>
>
>
>  
>