[build] Remove posix95 thread model

While preparing the patch to move gthr* to toplevel libgcc, I noticed
that we still have half-hearted support for the posix95 thread model.
No port uses it as the default, and the posix95 subdir in libgomp/config
isn't referenced anywhere and cannot be used.  Thus, I propose to remove
this model completely.

Bootstrapped on i386-pc-solaris2.11 to make sure there are no syntax
errors.

Ok for mainline?

Thanks.
        Rainer


2011-08-07  Rainer Orth  <ro@...>

        boehm-gc:
        * configure.ac (THREADS): Remove posix95.
        * configure: Regenerate.

        gcc:
        * gthr-posix95.h: Remove.
        * gthr.h [_PTHREADS95]: Remove.
        * configure.ac (enable_threads): Remove posix95.
        * configure: Regenerate.
        * doc/install.texi (Configuration, --enable-threads): Remove
        posix95.

        libgomp:
        * config/posix95/lock.c, posix95/omp-lock.h: Remove.

        libjava:
        * configure.ac (THREADS): Remove posix95.
        * configure: Regenerate.

diff --git a/boehm-gc/configure.ac b/boehm-gc/configure.ac
--- a/boehm-gc/configure.ac
+++ b/boehm-gc/configure.ac
@@ -129,7 +129,7 @@ case "$THREADS" in
  no | none | single)
     THREADS=none
     ;;
- posix | posix95 | pthreads)
+ posix | pthreads)
     THREADS=posix
     THREADLIBS=-lpthread
     case "$host" in
diff --git a/gcc/configure.ac b/gcc/configure.ac
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -1354,7 +1354,7 @@ case ${enable_threads} in
     # default
     target_thread_file='single'
     ;;
-  aix | dce | lynx | mipssde | posix | posix95 | rtems | \
+  aix | dce | lynx | mipssde | posix | rtems | \
   single | tpf | vxworks | win32)
     target_thread_file=${enable_threads}
     ;;
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -1145,8 +1145,6 @@ MIPS SDE thread support.
 This is an alias for @samp{single}.
 @item posix
 Generic POSIX/Unix98 thread support.
-@item posix95
-Generic POSIX/Unix95 thread support.
 @item rtems
 RTEMS thread support.
 @item single
diff --git a/gcc/gthr-posix95.h b/gcc/gthr-posix95.h
deleted file mode 100644
diff --git a/gcc/gthr.h b/gcc/gthr.h
--- a/gcc/gthr.h
+++ b/gcc/gthr.h
@@ -135,7 +135,6 @@ see the files COPYING3 and COPYING.RUNTI
    Currently supported threads packages are
      TPF threads with -D__tpf__
      POSIX/Unix98 threads with -D_PTHREADS
-     POSIX/Unix95 threads with -D_PTHREADS95
      DCE threads with -D_DCE_THREADS
 
 */
@@ -145,8 +144,6 @@ see the files COPYING3 and COPYING.RUNTI
 #include "gthr-tpf.h"
 #elif _PTHREADS
 #include "gthr-posix.h"
-#elif _PTHREADS95
-#include "gthr-posix95.h"
 #elif _DCE_THREADS
 #include "gthr-dce.h"
 
diff --git a/libgomp/config/posix95/lock.c b/libgomp/config/posix95/lock.c
deleted file mode 100644
diff --git a/libgomp/config/posix95/omp-lock.h b/libgomp/config/posix95/omp-lock.h
deleted file mode 100644
diff --git a/libjava/configure.ac b/libjava/configure.ac
--- a/libjava/configure.ac
+++ b/libjava/configure.ac
@@ -1043,7 +1043,7 @@ case "$THREADS" in
  no | none | single)
     THREADS=none
     ;;
- aix | posix | posix95 | pthreads)
+ aix | posix | pthreads)
     THREADS=posix
     case "$host" in
      *-*-linux*)
--
-----------------------------------------------------------------------------
Rainer Orth, Center for Biotechnology, Bielefeld University