diff -r b907d8059290 -r 62f1a55535e7 make/toolchain.sh
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/make/toolchain.sh	Mon Feb 04 14:46:11 2019 +0100
@@ -0,0 +1,68 @@
+#!/bin/sh
+#
+# toolchain detection
+#
+
+COMPILERS="cc gcc clang suncc"
+unset CC_ARG_CHECKED
+unset TOOLCHAIN_DETECTION_ERROR
+unset TOOLCHAIN_NAME
+
+check_compiler()
+{
+    cat > $TEMP_DIR/test.c << __EOF__
+/* test file */
+#include <stdio.h>
+int main(int argc, char **argv) {
+#if defined(__GNUC__)
+    printf("gcc\n");
+#elif defined(__clang__)
+    printf("clang\n");
+#elif defined(__sun)
+    printf("suncc\n");
+#else
+    printf("unknown\n");
+#endif
+    return 0;
+}
+__EOF__
+    rm -f $TEMP_DIR/checkcc
+    $1 -o $TEMP_DIR/checkcc $CFLAGS $LDFLAGS $TEMP_DIR/test.c
+    
+    if [ $? -ne 0 ]; then
+        return 1
+    fi
+    return 0
+}
+
+printf "detect toolchain... "
+
+for COMP in $COMPILERS
+do
+    check_compiler $COMP
+    if [ $? -ne 0 ]; then
+        if [ $COMP = $CC ]; then
+            echo "$CC is not a working C Compiler"
+            TOOLCHAIN_DETECTION_ERROR="error"
+            break
+        fi
+    else
+        TOOLCHAIN_NAME=`$TEMP_DIR/checkcc`
+        TOOLCHAIN_CC=$COMP
+        echo $TOOLCHAIN_NAME
+        break
+    fi
+done
+
+TOOLCHAIN_LD=$TOOLCHAIN_CC
+
+if [ -z TOOLCHAIN_NAME ]; then
+    TOOLCHAIN_DETECTION_ERROR="error"
+else
+    echo "CC = ${TOOLCHAIN_CC}" >> $TEMP_DIR/config.mk
+    echo "LD = ${TOOLCHAIN_LD}" >> $TEMP_DIR/config.mk
+    
+    if [ -e "make/${TOOLCHAIN_NAME}.mk" ]; then 
+        echo "include \$(BUILD_ROOT)make/${TOOLCHAIN_NAME}.mk" >> $TEMP_DIR/config.mk
+    fi
+fi