Fix for configuration generator to support Clang-built kernels.
Partially backports https://github.com/amd/xdna-driver/commit/539d1ba5dc3a46338af694ec07b06dfe4c052dc5
--- a/src/driver/tools/configure_kernel.sh
+++ b/src/driver/tools/configure_kernel.sh
@@ -42,6 +42,16 @@ try_compile() {
     tmpdir=$(mktemp -d /tmp/conftest-XXXXXX)
     conftest_c="$tmpdir/conftest.c"
     conftest_mk="$tmpdir/Makefile"
+    USE_LLVM=""
+    if [ -e /proc/config.gz ]; then
+        if zgrep -q "CONFIG_CC_IS_CLANG=y" /proc/config.gz 2>/dev/null; then
+            USE_LLVM="LLVM=1"
+        fi
+    elif [ -e "/boot/config-$KERNEL_VER" ]; then
+        if grep -q "CONFIG_CC_IS_CLANG=y" "/boot/config-$KERNEL_VER" 2>/dev/null; then
+            USE_LLVM="LLVM=1"
+        fi
+    fi
 
     # Minimal Kbuild for an external module
     cat > "$conftest_mk" <<EOF
@@ -58,8 +68,8 @@ EOF
     # Append the actual test code from stdin
     cat >> "$conftest_c"
 
-    # Now build it like your real driver
-    if make -s -C "$KERNEL_SRC" M="$tmpdir"  modules >/dev/null 2>&1; then
+    # Now build it like your real driver ($USE_LLVM intentionally unquoted to avoid empty arg)
+    if make -s -C "$KERNEL_SRC" M="$tmpdir" modules $USE_LLVM >/dev/null 2>&1; then
         echo "#define $macro 1" >> "$OUT"
         echo ">>>  + $macro: yes" >&2
     else