try to debug Makefile, failed to build libytest.so via tests

ytest_t/test/src/Makefile

@@ -4,7 +4,8 @@ CC=gcc
 LDFLAGS=-lpthread
 ROOT_DIR=$(shell pwd)
 INCLUDE_DIR=$(ROOT_DIR)
-CFLAGS=-I$(INCLUDE_DIR)
+PERMDIR=$(ROOT_DIR)/../../../ypermutation_t
+CFLAGS=-I$(INCLUDE_DIR) -I$(PERMDIR)/src/
 SRC_DIR=$(ROOT_DIR)
 SRC=$(wildcard src/*/*.c) 
 OBJ=$(SRC:.c=.o)
@@ -25,7 +26,7 @@ TESTSRC_O=$(TESTSRC:.c=.o)
 all: $(EXEC)
 
 $(EXEC):	$(EXECSRC) $(OBJ)
-	$(CC) -o $@ $^ -I$(INCLUDE_DIR) $(LDFLAGS)
+	$(CC) -o $@ $^ $(CFLAGS) $(LDFLAGS)
 
 
 $(TESTSRC_O): $(TESTSRC) $(TOOLSRC_O) 

ytest_t/test/src/is_good.c

@@ -90,7 +90,7 @@ TEST(expect){
   int b = 6;
   EXPECT_EQ(a,b);
   //SKIP();
-  SKIP("on skip eq string\n");
+  SKIP("%s\n","on skip eq string");
   EXPECT_EQ_TYPE_STRING("hello","hello");
   float f1 = 1.00019999, f2=1.00019999;
   EXPECT_EQ_TYPE_FLOAT(f1,f2);