diff --git a/src/common_define.h b/src/common_define.h
index 7dea6ed..69d2a4d 100644
--- a/src/common_define.h
+++ b/src/common_define.h
@@ -372,6 +372,16 @@ typedef void* (*MallocFunc)(size_t size);
 #define FC_SET_CHAIN_TAIL_NEXT(chain, type, ptr) \
     ((type *)(chain).tail)->next = ptr
 
+#define FC_VERSION_TO_INT(major, minor, patch) \
+    (major * 1000 * 1000 + minor * 1000 + patch)
+
+#define FC_VERSION_TO_INT1(version)    \
+    FC_VERSION_TO_INT((version).major, \
+            (version).minor, (version).patch)
+
+#define FC_COMPARE_INT_VERSIONS_TO_OPERATOR_STR(v1, v2) \
+    (v1 < v2 ? "<" : (v1 == v2 ? "==" : ">"))
+
 #ifdef WIN32
 #define strcasecmp	_stricmp
 #endif
diff --git a/src/fc_version.c b/src/fc_version.c
index 676e570..143e043 100644
--- a/src/fc_version.c
+++ b/src/fc_version.c
@@ -15,9 +15,10 @@
 
 #include "fc_version.h"
 
-void fc_version(Version *version)
+int fc_version(Version *version)
 {
     version->major = FC_MAJOR_VERSION;
     version->minor = FC_MINOR_VERSION;
     version->patch = FC_PATCH_VERSION;
+    return FC_VERSION_TO_INT1(*version);
 }
diff --git a/src/fc_version.h b/src/fc_version.h
index 87bdec5..8549ef5 100644
--- a/src/fc_version.h
+++ b/src/fc_version.h
@@ -24,11 +24,14 @@
 #define FC_MINOR_VERSION   0
 #define FC_PATCH_VERSION  85
 
+#define FC_VERSION_INT  FC_VERSION_TO_INT(FC_MAJOR_VERSION, \
+        FC_MINOR_VERSION, FC_PATCH_VERSION)
+
 #ifdef __cplusplus
 extern "C" {
 #endif
 
-    void fc_version(Version *version);
+    int fc_version(Version *version);
 
 #ifdef __cplusplus
 }