1 files changed, 30 insertions, 0 deletions
diff --git a/include/visibility.h b/include/visibility.h
new file mode 100644
index 0000000..afb8a6b
--- /dev/null
+++ b/include/visibility.h
@@ -0,0 +1,30 @@
+/**
+ *  visibility.h
+ *
+ *  This file defines macros used to define whether a symbol
+ *  should be exported. It is only used for classes and
+ *  functions that are defined in the public API to reduce
+ *  the size of the symbol table, make linking and loading
+ *  of the PHP-CPP library faster and generate more
+ *  optimized code as a result.
+ *
+ *  @copyright 2015 Copernica B.V.
+ */
+
+#if defined _WIN32 || defined __CYGWIN__
+    #ifdef BUILDING_PHPCPP
+        #ifdef __GNUC__
+            #define PHPCPP_EXPORT __attribute__ ((dllexport))
+        #else
+            #define PHPCPP_EXPORT __declspec(dllexport) // Note: actually gcc seems to also supports this syntax.
+        #endif
+    #else
+        #ifdef __GNUC__
+            #define DLL_EXPORT __attribute__ ((dllimport))
+        #else
+            #define DLL_EXPORT __declspec(dllimport) // Note: actually gcc seems to also supports this syntax.
+        #endif
+    #endif
+#else
+    #define PHPCPP_EXPORT __attribute__ ((visibility ("default")))
+#endif