Revert "libgcc: gthr: support for --enable-threads=c11"

This reverts commit 52dc7f4.

Signed-off-by: Stephanos Ioannidis <root@stephanos.io>

Author: stephanosio

config/gthr.m4

@@ -12,7 +12,6 @@ AC_DEFUN([GCC_AC_THREAD_HEADER],
 [
 case $1 in
     aix)	thread_header=config/rs6000/gthr-aix.h ;;
-    c11)	thread_header=gthr-c11.h ;;
     dce)	thread_header=config/pa/gthr-dce.h ;;
     gcn)	thread_header=config/gcn/gthr-gcn.h ;;
     lynx)	thread_header=config/gthr-lynx.h ;;

gcc/configure

@@ -12885,7 +12885,7 @@ case ${enable_threads} in
     # default
     target_thread_file='single'
     ;;
-  aix | c11 | dce | lynx | mipssde | posix | rtems | \
+  aix | dce | lynx | mipssde | posix | rtems | \
   single | tpf | vxworks | win32)
     target_thread_file=${enable_threads}
     ;;

gcc/configure.ac

@@ -1994,7 +1994,7 @@ case ${enable_threads} in
     # default
     target_thread_file='single'
     ;;
-  aix | c11 | dce | lynx | mipssde | posix | rtems | \
+  aix | dce | lynx | mipssde | posix | rtems | \
   single | tpf | vxworks | win32)
     target_thread_file=${enable_threads}
     ;;

libgcc/configure

@@ -5689,7 +5689,6 @@ tm_file="${tm_file_}"
 
 case $target_thread_file in
     aix)	thread_header=config/rs6000/gthr-aix.h ;;
-    c11)	thread_header=gthr-c11.h ;;
     dce)	thread_header=config/pa/gthr-dce.h ;;
     gcn)	thread_header=config/gcn/gthr-gcn.h ;;
     lynx)	thread_header=config/gthr-lynx.h ;;

libgcc/gthr-c11.h

@@ -15764,7 +15764,6 @@ $as_echo "$target_thread_file" >&6; }
 
 case $target_thread_file in
     aix)	thread_header=config/rs6000/gthr-aix.h ;;
-    c11)	thread_header=gthr-c11.h ;;
     dce)	thread_header=config/pa/gthr-dce.h ;;
     gcn)	thread_header=config/gcn/gthr-gcn.h ;;
     lynx)	thread_header=config/gthr-lynx.h ;;

libstdc++-v3/configure

@@ -1012,7 +1012,6 @@ thread_host_headers = \
 	${host_builddir}/gthr.h \
 	${host_builddir}/gthr-single.h \
 	${host_builddir}/gthr-posix.h \
-	${host_builddir}/gthr-c11.h \
 	${host_builddir}/gthr-default.h
 
 
@@ -1384,12 +1383,6 @@ ${host_builddir}/gthr-posix.h: ${toplevel_srcdir}/libgcc/gthr-posix.h \
 	    -e 's/\(${uppercase}*USE_WEAK\)/_GLIBCXX_\1/g' \
 	    < $< > $@
 
-${host_builddir}/gthr-c11.h: ${toplevel_srcdir}/libgcc/gthr-c11.h \
-				  stamp-${host_alias}
-	sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
-	    -e 's/\(GCC${uppercase}*_H\)/_GLIBCXX_\1/g' \
-	    < $< > $@
-
 ${host_builddir}/gthr-default.h: ${toplevel_srcdir}/libgcc/${thread_header} \
 				   stamp-${host_alias}
 	sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \

libstdc++-v3/include/Makefile.am

@@ -1363,7 +1363,6 @@ thread_host_headers = \
 	${host_builddir}/gthr.h \
 	${host_builddir}/gthr-single.h \
 	${host_builddir}/gthr-posix.h \
-	${host_builddir}/gthr-c11.h \
 	${host_builddir}/gthr-default.h
 
 pch1_source = ${glibcxx_srcdir}/include/precompiled/stdc++.h
@@ -1875,14 +1874,6 @@ ${host_builddir}/gthr-posix.h: ${toplevel_srcdir}/libgcc/gthr-posix.h \
 	    -e 's/\(${uppercase}*USE_WEAK\)/_GLIBCXX_\1/g' \
 	    < $< > $@
 
-${host_builddir}/gthr-c11.h: ${toplevel_srcdir}/libgcc/gthr-c11.h \
-				   stamp-${host_alias}
-	sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \
-	    -e 's/\(GCC${uppercase}*_H\)/_GLIBCXX_\1/g' \
-	    -e 's/SUPPORTS_WEAK/__GXX_WEAK__/g' \
-	    -e 's/\(${uppercase}*USE_WEAK\)/_GLIBCXX_\1/g' \
-	    < $< > $@
-
 ${host_builddir}/gthr-default.h: ${toplevel_srcdir}/libgcc/${thread_header} \
 				   stamp-${host_alias}
 	sed -e 's/\(UNUSED\)/_GLIBCXX_\1/g' \