Fixed default 'all' target; fixed format warnings in test suite

common.mk

@@ -6,6 +6,8 @@ CFLAGS += -DINCLUDE_TESTS
 
 .SUFFIX:
 
+.DEFAULT_GOAL:=all
+
 %.a:
 	-rm -f $@
 	ar crv $@ $^

src/test_suite.h

@@ -6,7 +6,7 @@
   typeof (n1) _n1 = (n1);				\
   typeof (n2) _n2 = (n2);				\
   if (!(_n1 op _n2)) {					\
-    g_test_message("Check failed: (%s): (%d %s %d)",	\
+    g_test_message("Check failed: (%s): (%lld %s %d)",	\
 		   #n1 " " #op " " #n2,			\
 		   _n1, #op, _n2);			\
     g_test_fail();					\