patch for Re: libstdc++/3174: sparc-rtems (also seen on i386-rtems)

[Joel Sherrill]

Attached is a minor patch that adds the missing entry point
to gthr-rtems.h and adds rtems as a known thread model to
configure.in.

This is the patch that lets this close.

bkoz@gcc.gnu.org wrote:
> 
> Synopsis: sparc-rtems (also seen on i386-rtems)
> 
> State-Changed-From-To: feedback->closed
> State-Changed-By: bkoz
> State-Changed-When: Mon Jun 18 22:53:35 2001
> State-Changed-Why:
>     Fixed
> 
> http://gcc.gnu.org/cgi-bin/gnatsweb.pl?cmd=view&pr=3174&database=gcc

-- 
Joel Sherrill, Ph.D.             Director of Research & Development
joel@OARcorp.com                 On-Line Applications Research
Ask me about RTEMS: a free RTOS  Huntsville AL 35805
   Support Available             (256) 722-9985
2001-06-19	Joel Sherrill <joel@OARcorp.com>

	* configure.in: Add rtems as a supported thread model.
	* gthr-rtems.h: Add missing entry point __gthread_active_p.

diff -uNr /usr1/rtems/work-tools/original/gcc-3.0-20010614/gcc/configure.in gcc-3.0-20010614/gcc/configure.in
--- /usr1/rtems/work-tools/original/gcc-3.0-20010614/gcc/configure.in	Tue Jun 12 21:27:58 2001
+++ gcc-3.0-20010614/gcc/configure.in	Fri Jun 15 11:03:07 2001
@@ -288,7 +288,7 @@
 		target_thread_file=''
 		;;
 	xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \
-	xsolaris | xwin32 | xdce | xvxworks | xaix)
+	xsolaris | xwin32 | xdce | xrtems| xvxworks | xaix)
 		target_thread_file=$enable_threads_flag
 		;;
 	*)
diff -uNr /usr1/rtems/work-tools/original/gcc-3.0-20010614/gcc/gthr-rtems.h gcc-3.0-20010614/gcc/gthr-rtems.h
--- /usr1/rtems/work-tools/original/gcc-3.0-20010614/gcc/gthr-rtems.h	Wed Dec  6 20:42:01 2000
+++ gcc-3.0-20010614/gcc/gthr-rtems.h	Mon Jun 18 10:26:58 2001
@@ -62,6 +62,13 @@
 extern int rtems_gxx_mutex_unlock (__gthread_mutex_t *mutex);
 
 
+/* RTEMS threading is always active */
+static inline int
+__gthread_active_p (void)
+{
+  return 1;
+}
+
 /* Wrapper calls */
 static inline int
 __gthread_once (__gthread_once_t *once, void (*func) ())