--- a/configure
+++ b/configure
@@ -636,10 +636,11 @@
 }
 EOF
 
-$CC -o .1 .1.c
-COMPILER=`./.1 2> /dev/null`
-r=$?
-rm -f .1.c .1
+r=1
+case "`$CC --version`" in
+*clang*) COMPILER=clang; r=0 ;;
+*GCC*) COMPILER=gcc; r=0 ;;
+esac
 
 if test "$r" -ne 0; then
 	assert "" "update compiler"
--- a/src/Makefile.in
+++ b/src/Makefile.in
@@ -25,7 +25,7 @@
 	$(LD) $(LDFLAGS) -o $(TARGET_DIR)/libck.so $(OBJECTS)
 
 libck.a: $(OBJECTS)
-	ar rcs $(TARGET_DIR)/libck.a $(OBJECTS)
+	$(AR) rcs $(TARGET_DIR)/libck.a $(OBJECTS)
 
 ck_array.o: $(INCLUDE_DIR)/ck_array.h $(SDIR)/ck_array.c
 	$(CC) $(CFLAGS) -c -o $(TARGET_DIR)/ck_array.o $(SDIR)/ck_array.c
