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-rw-r--r--include/ruby/missing.h8
1 files changed, 7 insertions, 1 deletions
diff --git a/include/ruby/missing.h b/include/ruby/missing.h
index 61524d2db1..d553f1c738 100644
--- a/include/ruby/missing.h
+++ b/include/ruby/missing.h
@@ -151,7 +151,13 @@ RUBY_EXTERN long strtol(const char *, char **, int);
RUBY_EXTERN int snprintf(char *, size_t n, char const *, ...);
#endif
#ifndef HAVE_VSNPRINTF
-extern int vsnprintf(char *, size_t n, char const *, va_list);
+# if _MSC_VER >= 1300
+# pragma warning(disable: 4273)
+# endif
+RUBY_EXTERN int vsnprintf(char *, size_t n, char const *, va_list);
+# if _MSC_VER >= 1300
+# pragma warning(default: 4273)
+# endif
#endif
#ifndef HAVE_STRLCPY