casa-mp-base

--- lib/ifdentry.hpp.orig   2017-07-01 22:18:47.000000000 -0700

+++ lib/ifdentry.hpp    2017-07-01 22:22:24.000000000 -0700

@@ -38,6 +38,22 @@

 #include "rawcontainer.hpp"

 #include "ifd.hpp"

+#if defined(__ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__) && __ENVIRONMENT_MAC_OS_X_VERSION_MIN_REQUIRED__ < 1070

+extern "C" {

+    static size_t

+    strnlen(const char *s, size_t maxlen)

+    {

+        size_t len;

+

+        for (len = 0; len < maxlen; len++, s++) {

+            if (!*s)

+                break;

+        }

+        return (len);

+    }

+}

+#endif

+

 namespace OpenRaw {

 class MetaValue;