Backport a fix from GCC mainline, which fixes libpcre 8.38 and expat 2.1.0
build on nios2. The example of the fixed error follows:
| ./nios2-poky-linux-libtool --silent --mode=compile nios2-poky-linux-gcc -mel -mhw-div -mhw-mul --sysroot=/mnt/work/Yocto/build-nios2/tmp/sysroots/10m50 -I../expat-2.1.0/lib -I. -O2 -pipe -g -feliminate-unused-debug-types -Wall -Wmissing-prototypes -Wstrict-prototypes -fexceptions -DHAVE_EXPAT_CONFIG_H -o lib/xmltok.lo -c ../expat-2.1.0/lib/xmltok.c
| {standard input}: Assembler messages:
| {standard input}:4988: Error: r31 cannot be used with jmp; use ret instead
| {standard input}:9703: Error: r31 cannot be used with jmp; use ret instead
| {standard input}:20068: Error: r31 cannot be used with jmp; use ret instead
| {standard input}:24020: Error: r31 cannot be used with jmp; use ret instead
| Makefile:196: recipe for target 'lib/xmltok.lo' failed
| make: *** [lib/xmltok.lo] Error 1
| WARNING: exit code 1 from a shell command.
Signed-off-by: Marek Vasut <marex@denx.de> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
