File pengupop-c99.patch of Package pengupop

Avoid implicit function declarations of swprintf and remove_bubble,
for compatibility with future compilers.

diff --git a/common.h b/common.h
index aca02552d4b92031..eaddb171661eee7b 100644
--- a/common.h
+++ b/common.h
@@ -80,3 +80,5 @@ void load_font();
 int has_char(int font, int ch);
 void print_string(int font, int x, int y, const wchar_t* string, int align);
 int string_width(int font, const wchar_t* string, size_t length);
+
+void remove_bubble(struct player_state* p, int x, int y, int evil);
diff --git a/singleplayer.c b/singleplayer.c
index 5c738f881dab55aa..c8d1168e0a5ee6be 100644
--- a/singleplayer.c
+++ b/singleplayer.c
@@ -4,6 +4,7 @@
 #include <stdlib.h>
 #include <string.h>
 #include <limits.h>
+#include <wchar.h>
 
 #include "common.h"
 #include "sound.h"