Sync with upstream gcc.

config/ChangeLog

@@ -1,3 +1,12 @@
+2016-06-21  Trevor Saunders  <tbsaunde+gcc@tbsaunde.org>
+
+	* elf.m4: Remove interix support.
+	* picflag.m4: Likewise.
+
+2016-04-30  Oleg Endo  <olegendo@gcc.gnu.org>
+
+	* picflag.m4:  Remove SH5 support.
+
 2015-10-21  Maxim Ostapenko  <m.ostapenko@partner.samsung.com>
 
 	* bootstrap-asan.mk: Replace ASAN_OPTIONS=detect_leaks with

config/elf.m4

@@ -17,7 +17,7 @@ target_elf=no
 case $target in
   *-darwin* | *-aix* | *-cygwin* | *-mingw* | *-aout* | *-*coff* | \
   *-msdosdjgpp* | *-vms* | *-wince* | *-*-pe* | \
-  alpha*-dec-osf* | *-interix* | hppa[[12]]*-*-hpux* | \
+  alpha*-dec-osf* | hppa[[12]]*-*-hpux* | \
   nvptx-*-none)
     target_elf=no
     ;;

config/picflag.m4

@@ -27,10 +27,6 @@ case "${$2}" in
 	;;
     i[[34567]]86-*-mingw* | x86_64-*-mingw*)
 	;;
-    i[[34567]]86-*-interix[[3-9]]*)
-	# Interix 3.x gcc -fpic/-fPIC options generate broken code.
-	# Instead, we relocate shared libraries at runtime.
-	;;
     i[[34567]]86-*-nto-qnx*)
 	# QNX uses GNU C++, but need to define -shared option too, otherwise
 	# it will coredump.
@@ -61,8 +57,7 @@ case "${$2}" in
 	$1=-fpic
 	;;
     # FIXME: Simplify to sh*-*-netbsd*?
-    sh-*-netbsdelf* | shl*-*-netbsdelf* | sh5-*-netbsd* | sh5l*-*-netbsd* | \
-      sh64-*-netbsd* | sh64l*-*-netbsd*)
+    sh-*-netbsdelf* | shl*-*-netbsdelf*)
 	$1=-fpic
 	;;
     # Default to -fPIC unless specified otherwise.