2 files changed, 18 insertions, 0 deletions
diff --git a/src/common/util.cpp b/src/common/util.cpp
index bfcf86bc6..2741497d6 100644
--- a/src/common/util.cpp
+++ b/src/common/util.cpp
@@ -568,4 +568,21 @@ std::string get_nix_version_display_string()
     MDEBUG("Address '" << address << "' is not local");
     return false;
   }
+  int vercmp(const char *v0, const char *v1)
+  {
+    std::vector<std::string> f0, f1;
+    boost::split(f0, v0, boost::is_any_of("."));
+    boost::split(f1, v1, boost::is_any_of("."));
+    while (f0.size() < f1.size())
+      f0.push_back("0");
+    while (f1.size() < f0.size())
+      f1.push_back("0");
+    for (size_t i = 0; i < f0.size(); ++i) {
+      int f0i = atoi(f0[i].c_str()), f1i = atoi(f1[i].c_str());
+      int n = f0i - f1i;
+      if (n)
+        return n;
+    }
+    return 0;
+  }
 }
diff --git a/src/common/util.h b/src/common/util.h
index c2ffc44ca..bef4b6202 100644
--- a/src/common/util.h
+++ b/src/common/util.h
@@ -183,4 +183,5 @@ namespace tools
   unsigned get_max_concurrency();
 
   bool is_local_address(const std::string &address);
+  int vercmp(const char *v0, const char *v1); // returns < 0, 0, > 0, similar to strcmp, but more human friendly than lexical - does not attempt to validate
 }