diff --git a/git-compat-util.h b/git-compat-util.h
index 433b8f2..4656332 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -211,12 +211,15 @@
 #endif
 
 #ifndef NO_OPENSSL
+#ifdef __APPLE__
 #define __AVAILABILITY_MACROS_USES_AVAILABILITY 0
-#define MAC_OS_X_VERSION_MIN_REQUIRED MAC_OS_X_VERSION_10_6
+#include <AvailabilityMacros.h>
+#undef DEPRECATED_ATTRIBUTE
+#define DEPRECATED_ATTRIBUTE
+#undef __AVAILABILITY_MACROS_USES_AVAILABILITY
+#endif
 #include <openssl/ssl.h>
 #include <openssl/err.h>
-#undef MAC_OS_X_VERSION_MIN_REQUIRED
-#undef __AVAILABILITY_MACROS_USES_AVAILABILITY
 #endif
 
 /* On most systems <netdb.h> would have given us this, but