diff --git a/scripts/005-binutils-SPU.sh b/scripts/005-binutils-SPU.sh
index b2c2c218..2fe535e1 100755
--- a/scripts/005-binutils-SPU.sh
+++ b/scripts/005-binutils-SPU.sh
@@ -36,6 +36,8 @@ fi
 cd ${BINUTILS}/build-spu
 
 ## Configure the build.
+## Host GCC 15/16 default to C23; binutils 2.22 uses K&R-era C.
+CFLAGS="${CFLAGS:-} -std=gnu17 -Wno-incompatible-pointer-types -Wno-int-conversion -Wno-implicit-function-declaration" \
 ../configure --prefix="$PS3DEV/spu" --target="spu" \
     --disable-nls \
     --disable-shared \
@@ -44,7 +46,9 @@ cd ${BINUTILS}/build-spu
     --disable-werror \
     --with-gcc \
     --with-gnu-as \
-    --with-gnu-ld
+    --with-gnu-ld \
+    --enable-lto \
+    --with-system-zlib
 
 ## Compile and install.
 PROCS="$(nproc --all 2>&1)" || ret=$?