Configure: Properly cache the configured compiler command

Reviewed-by: Rich Salz <rsalz@openssl.org>
diff --git a/Configure b/Configure
index 4a7d322..b30b57f 100755
--- a/Configure
+++ b/Configure
@@ -500,7 +500,7 @@
 	    if (grep(/^reconf/,@argvcopy));
 	$ENV{CROSS_COMPILE} = $configdata::config{cross_compile_prefix}
 	    if defined($configdata::config{cross_compile_prefix});
-	$ENV{CROSS_COMPILE} = $configdata::config{cc}
+	$ENV{CC} = $configdata::config{cc}
 	    if defined($configdata::config{cc});
 
 	print "Reconfiguring with: ", join(" ",@argvcopy), "\n";
@@ -938,6 +938,9 @@
 $target{rc} =
     $ENV{'RC'}  || $ENV{'WINDRES'} || $target{rc}      || "windres";
 
+# Cache the C compiler command for reconfiguration
+$config{cc} = $target{cc};
+
 # For cflags, lflags, plib_lflags, ex_libs and defines, add the debug_
 # or release_ attributes.
 # Do it in such a way that no spurious space is appended (hence the grep).