Merge pull request #937 from ucb-bar/qemu-disable-werror

qemu: build without -Werror

scripts/build-toolchains.sh

@@ -176,7 +176,7 @@ if [ -z "$IGNOREQEMU" ] ; then
     echo "==>  PLEASE REMOVE qemu URL-REWRITING from scripts/build-toolchains.sh. It is no longer needed!" && exit 1
 
     # now actually do the build
-    SRCDIR="$(pwd)/toolchains" module_build qemu --prefix="${RISCV}" --target-list=riscv${XLEN}-softmmu
+    SRCDIR="$(pwd)/toolchains" module_build qemu --prefix="${RISCV}" --target-list=riscv${XLEN}-softmmu --disable-werror
 fi
 
 # make Dromajo