engine: fix build

engine/common/host.c

@@ -306,7 +306,7 @@ void Host_NewInstance( const char *name, const char *finalmsg )
 	host.change_game = true;
 	Q_strncpy( host.finalmsg, finalmsg, sizeof( host.finalmsg ));
 
-	if( !Platform_ChangeGame( name ))
+	if( !Sys_NewInstance( name ))
 		pChangeGame( name ); // call from hl.exe
 }
 

engine/common/launcher.c

@@ -47,7 +47,7 @@ static void Sys_ChangeGame( const char *progname )
 	// if platform supports execv() function
 	Q_strncpy( szGameDir, progname, sizeof( szGameDir ) - 1 );
 	Host_Shutdown( );
-	exit( Host_Main( szArgc, szArgv, szGameDir, 1, &Launcher_ChangeGame ) );
+	exit( Host_Main( szArgc, szArgv, szGameDir, 1, &Sys_ChangeGame ) );
 }
 
 _inline int Sys_Start( void )
@@ -81,7 +81,7 @@ _inline int Sys_Start( void )
 	}
 #endif
 
-	ret = Host_Main( szArgc, szArgv, game, 0, Launcher_ChangeGame );
+	ret = Host_Main( szArgc, szArgv, game, 0, Sys_ChangeGame );
 
 	return ret;
 }

engine/common/system.c

@@ -17,6 +17,7 @@ GNU General Public License for more details.
 #include "xash3d_mathlib.h"
 #include "platform/platform.h"
 #include <stdlib.h>
+#include <errno.h>
 
 #ifdef XASH_SDL
 #include <SDL.h>
@@ -556,7 +557,7 @@ but since engine will be unloaded during this call
 it explicitly doesn't use internal allocation or string copy utils
 ==================
 */
-qboolean Sys_ChangeGame( const char *gamedir )
+qboolean Sys_NewInstance( const char *gamedir )
 {
 	int i = 0;
 	qboolean replacedArg = false;

engine/common/system.h

@@ -68,6 +68,7 @@ void Sys_PrintLog( const char *pMsg );
 void Sys_InitLog( void );
 void Sys_CloseLog( void );
 void Sys_Quit( void ) NORETURN;
+qboolean Sys_NewInstance( const char *gamedir );
 
 //
 // sys_con.c