Make config_GetCustomConfigFile static

src/config/configuration.h

@@ -43,7 +43,6 @@ void config_UnsetCallbacks( module_config_t *, size_t );
 #define config_LoadConfigFile(a,b) __config_LoadConfigFile(VLC_OBJECT(a),b)
 
 int __config_LoadCmdLine   ( vlc_object_t *, int *, const char *[], bool );
-char *config_GetCustomConfigFile( libvlc_int_t * );
 int __config_LoadConfigFile( vlc_object_t *, const char * );
 
 int IsConfigStringType( int type );

src/config/file.c

@@ -43,6 +43,7 @@
 #include "modules/modules.h"
 
 static char *ConfigKeyToString( int );
+static char *config_GetCustomConfigFile( libvlc_int_t * );
 
 static inline char *strdupnull (const char *src)
 {
@@ -697,7 +698,7 @@ int __config_SaveConfigFile( vlc_object_t *p_this, const char *psz_module_name )
 /**
  * Get the user's configuration file when given with the --config option
  */
-char *config_GetCustomConfigFile( libvlc_int_t *p_libvlc )
+static char *config_GetCustomConfigFile( libvlc_int_t *p_libvlc )
 {
     char *psz_configfile = config_GetPsz( p_libvlc, "config" );
     if( psz_configfile != NULL )