gcc's case

Author: devnexen

ext/openssl/php_openssl.h

@@ -68,6 +68,8 @@ extern zend_module_entry openssl_module_entry;
 
 #ifdef PHP_WIN32
 #	define PHP_OPENSSL_API __declspec(dllexport)
+#elif defined(__GNUC__) && __GNUC__ >= 4
+#	define PHP_OPENSSL_API __attribute__((visibility("default")))
 #else
 #	define PHP_OPENSSL_API
 #endif