drop varargs.h support

This header file is simply out of date (for decades since at least
1989).  It's the 21st century.  Just stop using it.

1 files changed, 0 insertions, 7 deletions

diff --git a/vm_core.h b/vm_core.h
index 3d9b190c2d..e725e4d8d0 100644
--- a/vm_core.h
+++ b/vm_core.h
@@ -49,14 +49,7 @@
 
 #include <stddef.h>
 #include <signal.h>
-
-#ifdef HAVE_STDARG_PROTOTYPES
 #include <stdarg.h>
-#define va_init_list(a,b) va_start((a),(b))
-#else
-#include <varargs.h>
-#define va_init_list(a,b) va_start((a))
-#endif
 
 #include "ruby_assert.h"