Re: GCC with '-threads' on SOLARIS not supported by ltmain.sh

[Bob Friesenhahn]

On Thu, 8 Jun 2006, Eric PAIRE wrote:
> The threads(3THR) manual page for Solaris specifies:
>
> POSIX
>    cc -mt [ flag... ] file...- lpthread [ -lposix4 library... ]
> Solaris
>    cc - mt [ flag... ] file...[ library... ]
>
> But, if  you read closely, you will see that the page refers to 'cc' and not 
> 'gcc' :-(, and if you read the specs files of 'gcc', you will discover that 
> gcc refuses the '-mt' flag but accepts '-pthreads' flag when compiling for 
> POSIX threads, and '-threads' one when compiling for SOLARIS threads, without 
> having to add '-lpthread' (which is much simpler IMHO).

I see.  A solution is to simply define -D_REENTRANT in CPPFLAGS and 
then everything just works.  The -mt, -threads, and -pthreads options 
are just crutches.

There was a time when I was using Solaris UI threads with GCC but that 
was a very long time ago.  At that time I was not using any special 
option except for -D_REENTRANT.

Bob
======================================
Bob Friesenhahn
address@hidden, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/