diff --git a/CHANGES b/CHANGES
index 4f516ffd5..8ae1483db 100644
--- a/CHANGES
+++ b/CHANGES
@@ -46,9 +46,8 @@
      (both in crypto/Makefile.ssl for use by crypto/cversion.c) caused
      problems not only on Windows, but also on some Unix platforms.
      To avoid problematic command lines, these definitions are now in an
-     auto-generated file, which also defines DATE and thus replaces
-     crypto/date.h.  Standard "make" builds use crypto/buildinf.h,
-     mk1mf.pl builds use crypto/mk1mfinf.h (created by mk1mf.pl).
+     auto-generated file crypto/buildinf.h (created by crypto/Makefile.ssl
+     for standard "make" builds, by util/mk1mf.pl for "mk1mf" builds).
      [Bodo Moeller]
 
   *) MIPS III/IV assembler module is reimplemented.
diff --git a/Configure b/Configure
index fbac48e39..30927aeed 100755
--- a/Configure
+++ b/Configure
@@ -708,13 +708,14 @@ print "BF_PTR2 used\n" if $bf_ptr == 2;
 if($IsWindows) {
 	open (OUT,">crypto/buildinf.h") || die "Can't open buildinf.h";
 	printf OUT <<EOF;
-/* auto-generated by Configure for crypto/cversion.c */
-/* (Unix builds: auto-generated by crypto/Makefile.ssl) */
-/* mk1mf builds use mk1mfinf.h instead, so this file is probably never needed */
-#define CFLAGS "$cc $cflags"
-#define PLATFORM "$target"
+#ifndef MK1MF_BUILD
+  /* auto-generated by Configure for crypto/cversion.c:
+   * for Unix builds, crypto/Makefile.ssl generates functional definitions;
+   * Windows builds (and other mk1mf builds) compile cversion.c with
+   * -DMK1MF_BUILD and use definitions added to this file by util/mk1mf.pl. */
+  #error "Windows builds (PLATFORM=$target) use mk1mf.pl-created Makefiles"
+#endif
 EOF
-	printf OUT "#define DATE \"%s\"\n", scalar gmtime();
 	close(OUT);
 
 	system "perl crypto/objects/obj_dat.pl <crypto/objects/objects.h >crypto/objects/obj_dat.h";
diff --git a/crypto/.cvsignore b/crypto/.cvsignore
index b8d2cb1da..6b86a0a8d 100644
--- a/crypto/.cvsignore
+++ b/crypto/.cvsignore
@@ -1,5 +1,4 @@
 lib
 buildinf.h
-mk1mfinf.h
 opensslconf.h
 Makefile.save
diff --git a/crypto/Makefile.ssl b/crypto/Makefile.ssl
index c27a69d5e..930dd02a9 100644
--- a/crypto/Makefile.ssl
+++ b/crypto/Makefile.ssl
@@ -50,11 +50,12 @@ top:
 all: buildinf.h lib subdirs
 
 buildinf.h: ../Makefile.ssl
-	( echo "/* auto-generated by crypto/Makefile.ssl for crypto/cversion.c */"; \
-	echo "/* (mk1mf builds use mk1mfinf.h instead) */"; \
-	echo "#define CFLAGS \"$(CC) $(CFLAG)\""; \
-	echo "#define PLATFORM \"$(PLATFORM)\""; \
-	echo "#define DATE \"`date`\"" ) >buildinf.h
+	( echo "#ifndef MK1MF_BUILD"; \
+	echo "  /* auto-generated by crypto/Makefile.ssl for crypto/cversion.c */"; \
+	echo "  #define CFLAGS \"$(CC) $(CFLAG)\""; \
+	echo "  #define PLATFORM \"$(PLATFORM)\""; \
+	echo "  #define DATE \"`date`\""; \
+	echo "#endif" ) >buildinf.h
 
 subdirs:
 	@for i in $(SDIRS) ;\
@@ -129,7 +130,7 @@ depend:
 	done;
 
 clean:
-	rm -f buildinf.h mk1mfinf.h *.o */*.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
+	rm -f buildinf.h *.o */*.o *.obj lib tags core .pure .nfs* *.old *.bak fluff
 	@for i in $(SDIRS) ;\
 	do \
 	(cd $$i; echo "making clean in crypto/$$i..."; \
diff --git a/crypto/cversion.c b/crypto/cversion.c
index 428def308..297f8843f 100644
--- a/crypto/cversion.c
+++ b/crypto/cversion.c
@@ -61,11 +61,7 @@
 #include "cryptlib.h"
 #include <openssl/crypto.h>
 
-#ifdef MK1MF_BUILD
-# include "mk1mfinf.h"
-#else
-# include "buildinf.h"
-#endif
+#include "buildinf.h"
 
 const char *SSLeay_version(int t)
 	{
diff --git a/util/mk1mf.pl b/util/mk1mf.pl
index e4596bebb..f3f17074f 100755
--- a/util/mk1mf.pl
+++ b/util/mk1mf.pl
@@ -404,11 +404,11 @@ EOF
     
 my $platform_cpp_symbol = "MK1MF_PLATFORM_$platform";
 $platform_cpp_symbol =~ s/-/_/;
-if (open(IN,"crypto/mk1mfinf.h"))
+if (open(IN,"crypto/buildinf.h"))
 	{
-	# Remove entry for this platform in existing file mk1mfinf.h.
+	# Remove entry for this platform in existing file buildinf.h.
 
-	my $old_mk1mfinf_h = "";
+	my $old_buildinf_h = "";
 	while (<IN>)
 		{
 		if (/^\#ifdef $platform_cpp_symbol$/)
@@ -417,21 +417,20 @@ if (open(IN,"crypto/mk1mfinf.h"))
 			}
 		else
 			{
-			$old_mk1mfinf_h .= $_;
+			$old_buildinf_h .= $_;
 			}
 		}
 	close(IN);
 
-	open(OUT,">crypto/mk1mfinf.h") || die "Can't open mk1mfinf.h";
-	print OUT $old_mk1mfinf_h;
+	open(OUT,">crypto/buildinf.h") || die "Can't open buildinf.h";
+	print OUT $old_buildinf_h;
 	close(OUT);
 	}
 
-open (OUT,">>crypto/mk1mfinf.h") || die "Can't open mk1mfinf.h";
+open (OUT,">>crypto/buildinf.h") || die "Can't open buildinf.h";
 printf OUT <<EOF;
 #ifdef $platform_cpp_symbol
-  /* auto-generated and updated by util/mk1mf.pl for crypto/cversion.c */
-  /* (used in place of crypto/buildinf.h by mk1mf builds) */
+  /* auto-generated/updated by util/mk1mf.pl for crypto/cversion.c */
   #define CFLAGS "$cc $cflags"
   #define PLATFORM "$platform"
 EOF