Fix linux build

premake5.lua

@@ -195,12 +195,6 @@ project "re3"
 
 	filter "platforms:*oal"
 		defines { "AUDIO_OAL" }
-		includedirs { "openal-soft/include" }
-		includedirs { "libsndfile/include" }
-		includedirs { "mpg123/include" }
-		libdirs { "openal-soft/libs/Win32" }
-		libdirs { "libsndfile/lib" }
-		libdirs { "mpg123/lib" }
 
 	filter {}
 	if(os.getenv("GTA_III_RE_DIR")) then
@@ -214,6 +208,14 @@ project "re3"
 		characterset ("MBCS")
 		targetextension ".exe"
 
+	filter "platforms:win*oal"
+		includedirs { "openal-soft/include" }
+		includedirs { "libsndfile/include" }
+		includedirs { "mpg123/include" }
+		libdirs { "openal-soft/libs/Win32" }
+		libdirs { "libsndfile/lib" }
+		libdirs { "mpg123/lib" }
+
 	filter "platforms:linux*oal"
 		links { "openal", "mpg123", "sndfile", "pthread" }
 

src/audio/oal/stream.cpp

@@ -8,12 +8,11 @@
 typedef long ssize_t;
 #pragma comment( lib, "libsndfile-1.lib" )
 #pragma comment( lib, "libmpg123.lib" )
+#else
+#include "crossplatform.h"
 #endif
 #include <sndfile.h>
 #include <mpg123.h>
-#ifndef _WIN32
-#include "crossplatform.h"
-#endif
 
 class CSndFile : public IDecoder
 {