* config.sub (pru, pru-*): Force ELF format.

	* testsuite/config-sub.data: Update PRU test case.
Signed-off-by: Ben Elliston <bje@gnu.org>

ChangeLog

+2016-12-16  Dimitar Dimitrov  <dimitar@dinux.eu>
+
+	* config.sub (pru, pru-*): Force ELF format.
+	* testsuite/config-sub.data: Update PRU test case.
+
 2016-11-19  Ben Elliston  <bje@gnu.org>
 
 	* config.sub (glidix-*): Recognise.

config.sub

@@ -1638,6 +1638,9 @@ case $basic_machine in
 	sparc-* | *-sun)
 		os=-sunos4.1.1
 		;;
+	pru-*)
+		os=-elf
+		;;
 	*-be)
 		os=-beos
 		;;

testsuite/config-sub.data

@@ -365,7 +365,7 @@ ppcle-none-elf			powerpcle-none-elf
 ppcle				powerpcle-unknown-none
 ppc-none-elf			powerpc-none-elf
 ppc				powerpc-unknown-none
-pru				pru-unknown-none
+pru				pru-unknown-elf
 pru-elf				pru-unknown-elf
 pyramid				pyramid-unknown-none
 rdos32				i386-pc-rdos