[patch] Drop support for --enable-threads=pthreads, and dead thread models

[neroden at twcny dot rr dot com (Nathanael Nerode)]

OK, this is what I came up with in response to the reaction to my
other suggested patch.  This gets rid of --enable-threads='pthreads'
(in favor of --enable-threads='posix', mind you)
and gets rid of some other unsupported thread models as well.

I'll follow up with a documentation patch.

OK?

	* config.gcc: Don't accept --enable-threads=pthreads.  Clean
	up related case statements.
	* configure.in: Don't accept --enable-threads=pthreads,
	decosf1, mach, or os2 (none of which work anyway).  Alphabetize
	supported thread files in case clause.
	* configure: Regenerate.

Index: config.gcc
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config.gcc,v
retrieving revision 1.393
diff -u -r1.393 config.gcc
--- config.gcc	2 Oct 2003 00:44:13 -0000	1.393
+++ config.gcc	8 Oct 2003 16:14:43 -0000
@@ -381,7 +381,7 @@
     no)
       fbsd_tm_file="${fbsd_tm_file} freebsd-nthr.h"
       ;;
-    "" | yes | pthreads | posix)
+    "" | yes | posix)
       thread_file='posix'
       tmake_file="${tmake_file} t-freebsd-thread"
       # Before 5.0, FreeBSD can't bind shared libraries to -lc
@@ -567,8 +567,8 @@
 	    target_cpu_default=MASK_SUPPORT_ARCH
 	    ;;
 	esac
-	case x${enable_threads} in
-	x | xyes | xpthreads | xposix)
+	case ${enable_threads} in
+	  "" | yes | posix)
 	    thread_file='posix'
 	    tmake_file="${tmake_file} alpha/t-osf-pthread"
 	    ;;
@@ -620,10 +620,10 @@
 	tmake_file="t-slibgcc-elf-ver t-linux arm/t-linux"
 	extra_parts="crtbegin.o crtbeginS.o crtend.o crtendS.o"
 	gnu_ld=yes
-	case x${enable_threads} in
-	x | xyes | xpthreads | xposix)
-		thread_file='posix'
-		;;
+	case ${enable_threads} in
+	  "" | yes | posix)
+	    thread_file='posix'
+	    ;;
 	esac
 	;;
 arm*-*-uclinux*)		# ARM ucLinux
@@ -1609,10 +1609,10 @@
 powerpc-*-chorusos*)
 	tm_file="${tm_file} dbxelf.h elfos.h svr4.h freebsd-spec.h rs6000/sysv4.h chorus.h"
 	tmake_file="rs6000/t-fprules rs6000/t-ppcos rs6000/t-ppccomm"
-	case x${enable_threads} in
-	  xyes | xpthreads | xposix)
-		thread_file='posix'
-		;;
+	case ${enable_threads} in
+	  yes | posix)
+	    thread_file='posix'
+	    ;;
 	esac
 	use_fixproto=yes
 	;;
Index: configure.in
===================================================================
RCS file: /cvs/gcc/gcc/gcc/configure.in,v
retrieving revision 1.735
diff -u -r1.735 configure.in
--- configure.in	7 Oct 2003 12:32:06 -0000	1.735
+++ configure.in	8 Oct 2003 16:14:48 -0000
@@ -1070,8 +1070,8 @@
     # default
     target_thread_file='single'
     ;;
-  decosf1 | irix | mach | os2 | posix | pthreads | single | \
-  solaris | win32 | dce | rtems| vxworks | aix | gnat)
+  aix | dce | gnat | irix | posix | rtems | \
+  single | solaris | vxworks | win32 )
     target_thread_file=${enable_threads_flag}
     ;;
   *)

-- 
Nathanael Nerode  <neroden at gcc.gnu.org>
http://home.twcny.rr.com/nerode/neroden/fdl.html