fix build for latest musl

Author: nillerusr

public/togl/linuxwin/glmdebug.h

@@ -25,9 +25,7 @@
 #define	GLMDEBUG_H
 
 #include "tier0/platform.h"
-#if defined( OSX )
 #include <stdarg.h>
-#endif
 
 // include this anywhere you need to be able to compile-out code related specifically to GLM debugging.
 

public/togles/linuxwin/glmdebug.h

@@ -25,9 +25,7 @@
 #define	GLMDEBUG_H
 
 #include "tier0/platform.h"
-#if defined( OSX )
 #include <stdarg.h>
-#endif
 
 // include this anywhere you need to be able to compile-out code related specifically to GLM debugging.
 

vgui2/src/system_posix.cpp

@@ -32,6 +32,7 @@
 #include <sys/param.h>
 #include <sys/mount.h>
 #elif defined(LINUX)
+#define _LARGEFILE64_SOURCE
 #include <sys/vfs.h>
 #endif
 #ifdef OSX