1 files changed, 2 insertions, 2 deletions
diff --git a/crawl-ref/source/libunix.h b/crawl-ref/source/libunix.h
index 0d6a623d9c..11d5c8a019 100644
--- a/crawl-ref/source/libunix.h
+++ b/crawl-ref/source/libunix.h
@@ -35,12 +35,12 @@ int clrscr(void);
 int cprintf(const char *format,...);
 int gotoxy_sys(int x, int y);
 void fakecursorxy(int x, int y);
-int itoa(int value, char *strptr, int radix);
+extern "C" char *itoa(int value, char *strptr, int radix);
 int kbhit(void);
 int putch(unsigned char chr);
 int putwch(unsigned chr);
 void put_colour_ch(int colour, unsigned ch);
-int stricmp(const char *str1, const char *str2);
+extern "C" int stricmp(const char *str1, const char *str2);
 int translate_keypad(int keyin);
 int wherex(void);
 int wherey(void);