fix: version marco expand error

src/config.c

@@ -5,10 +5,6 @@
 #include <unistd.h>
 #include <getopt.h>
 
-#ifndef VERSION
-    #define VERSION 0.0.0
-#endif
-
 struct option_s {
     char key[256];
     char value[256];
@@ -46,7 +42,7 @@ void set_enable_crypt(int enable)
 
 void get_version(char* version)
 {
-    strcpy(version, "VERSION");
+    strcpy(version, _VERSION);
 }
 
 void set_log_file(char * log_file, int len)

src/config.h

@@ -3,6 +3,14 @@
 
 #include <stdio.h>
 
+#ifndef VERSION
+    #define VERSION 0.0.0
+#endif
+
+#define _VERSION __VERSION(VERSION)
+#define __VERSION(str) ___VERSION(str)
+#define ___VERSION(str) #str
+
 enum CRYPT_TYPE {
     DISABLE_CRYPT=0,
     ENABLE_CRYPT=1,

src/gdut-drcom.c

@@ -5,10 +5,6 @@
 #include "auth.h"
 #include "config.h"
 
-#ifndef VERSION
-    #define VERSION 0.0.0
-#endif
-
 static void print_help(char * name);
 
 int main(int argc, char *argv[])
@@ -67,7 +63,7 @@ int main(int argc, char *argv[])
                 exit(0);
                 break;
             case 'v':
-                fprintf(stdout, "version: %s\n", "VERSION");
+                fprintf(stdout, "version: %s\n", _VERSION);
                 exit(0);
                 break;
             case 'l':
@@ -107,7 +103,7 @@ static void print_help(char *name)
         "        /___/   "
             );
 
-    fprintf(stdout, "A third-party drcom client for gdut. version %s\n", "VERSION");
+    fprintf(stdout, "A third-party drcom client for gdut. version %s\n", _VERSION);
     fprintf(stdout, "usage:\n");
     fprintf(stdout, "  %s\n", name);
     fprintf(stdout, "    --remote-ip <ip addr>               The server ip.\n");