Merged revision(s) 22705 from branches/OpenMPT-1.31/libopenmpt/xmp-op…

…enmpt:

Merged revision(s) 22704 from trunk/OpenMPT:
[Fix] xmp-openmpt: Work-around incompatible XMPIN_GetInterface declaration with GCC in XMPlay SDK 2025-01-02.
........
........


git-svn-id: https://source.openmpt.org/svn/openmpt/branches/OpenMPT-1.30@22706 56274372-70c3-4bfc-bfc3-4c3a0b034d27

libopenmpt/xmp-openmpt.cpp

@@ -79,7 +79,14 @@ static const char * xmp_openmpt_string = "OpenMPT (" OPENMPT_API_VERSION_STRING
 
 #define USE_XMPLAY_ISTREAM
 
+// XMPLAY expects a WINAPI (which is __stdcall) function using an undecorated symbol name which conflicts with the provided declaration.
+#if defined(__GNUC__)
+#define XMPIN_GetInterface XMPIN_GetInterface_Dummy
+#endif
 #include "xmplay/xmpin.h"
+#if defined(__GNUC__)
+#undef XMPIN_GetInterface
+#endif
 
 // Shortcut block assigned to the OpenMPT plugin by un4seen.
 enum {