explicit_bzero.c: needs windows.h

* missing/explicit_bzero.c, random.c (explicit_bzero):
  SecureZeroMemory() needs windows.h.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@52827 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

include/ruby/missing.h

@@ -252,7 +252,7 @@ explicit_bzero_by_memset_s(void *b, size_t len)
     memset_s(b, len, 0, len);
 }
 #   define explicit_bzero(b, len) explicit_bzero_by_memset_s(b, len)
-# elif defined _WIN32
+# elif defined SecureZeroMemory
 #   define explicit_bzero(b, len) SecureZeroMemory(b, len)
 # endif
 #endif

missing/explicit_bzero.c

@@ -1,6 +1,10 @@
 #include "ruby/missing.h"
 #include <string.h>
 
+#ifdef _WIN32
+#include <windows.h>
+#endif
+
 /*
  *BSD have explicit_bzero().
  Windows, OS-X have memset_s().
@@ -30,6 +34,8 @@ explicit_bzero(void *b, size_t len)
 {
 #ifdef HAVE_MEMSET_S
     memset_s(b, len, 0, len);
+#elif defined SecureZeroMemory
+    SecureZeroMemory(b, len);
 #else
     {
 	/*

random.c

@@ -89,6 +89,7 @@ The original copyright notice follows.
 #  define _WIN32_WINNT 0x400
 #  undef __WINCRYPT_H__
 # endif
+#include <windows.h>
 #include <wincrypt.h>
 #endif
 #include "ruby_atomic.h"

win32/Makefile.sub

@@ -244,6 +244,7 @@ MISSING = crypt.obj ffs.obj langinfo.obj lgamma_r.obj strlcat.obj strlcpy.obj wi
 !if $(RT_VER) < 120
 MISSING = $(MISSING) acosh.obj cbrt.obj erf.obj tgamma.obj
 !endif
+MISSING = $(MISSING) explicit_bzero.obj
 !endif
 DLNOBJ = dln.obj