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-rw-r--r--ext/hash/php_hash.h6
1 files changed, 4 insertions, 2 deletions
diff --git a/ext/hash/php_hash.h b/ext/hash/php_hash.h
index e2309201f9..0f660c785a 100644
--- a/ext/hash/php_hash.h
+++ b/ext/hash/php_hash.h
@@ -100,9 +100,11 @@ extern zend_module_entry hash_module_entry;
#define phpext_hash_ptr &hash_module_entry
#ifdef PHP_WIN32
-#define PHP_HASH_API __declspec(dllexport)
+# define PHP_HASH_API __declspec(dllexport)
+#elif defined(__GNUC__) && __GNUC__ >= 4
+# define PHP_HASH_API __attribute__ ((visibility("default")))
#else
-#define PHP_HASH_API
+# define PHP_HASH_API
#endif
#ifdef ZTS