Fix ICE-7338

C++ IceSSL/configuration failures on macOS Sierra.

1 files changed, 10 insertions, 3 deletions

diff --git a/cpp/test/IceSSL/configuration/AllTests.cpp b/cpp/test/IceSSL/configuration/AllTests.cpp
index cfa6506493e..10629281968 100644
--- a/cpp/test/IceSSL/configuration/AllTests.cpp
+++ b/cpp/test/IceSSL/configuration/AllTests.cpp
@@ -432,13 +432,20 @@ void
 allTests(const CommunicatorPtr& communicator, const string& testDir, bool p12, bool shutdown)
 {
 #ifdef __APPLE__
-    bool isElCapitan = false;
+    bool isElCapitanOrGreater = false;
     vector<char> s(256);
     size_t size = s.size();
     int ret = sysctlbyname("kern.osrelease", &s[0], &size, NULL, 0);
     if(ret == 0)
     {
-        isElCapitan = string(&s[0]).find("15.") == 0;
+        // version format is x.y.z
+        size_t first = string(&s[0]).find_first_of(".");
+        size_t last = string(&s[0]).find_last_of(".");
+
+        int majorVersion = atoi(string(&s[0]).substr(0, first - 1).c_str());
+        int minorVersion = atoi(string(&s[0]).substr(first + 1, last - first - 1).c_str());
+
+        isElCapitanOrGreater = majorVersion >= 15;
     }
 #endif
 
@@ -1940,7 +1947,7 @@ allTests(const CommunicatorPtr& communicator, const string& testDir, bool p12, b
         }
         catch(const LocalException& ex)
         {
-            if(!isElCapitan) // DH params too weak for El Capitan
+            if(!isElCapitanOrGreater) // DH params too weak for El Capitan
             {
                 cerr << ex << endl;
                 test(false);