We need Unixly defaults for config targets that don't inherit a BASE

Ideally, each config target should inherit a base to get their
platform specific defaults.  Unfortunately, that is currently not the
case, so we duplicate the Unixly defaults from the BASE_unix template
into the DEFAULT template.
Reviewed-by: NTim Hudson <tjh@openssl.org>
Reviewed-by: NRich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/5177)

Configurations/00-base-templates.conf

@@ -38,10 +38,22 @@ my %targets=(
 	shared_rcflag	=> "",
 	shared_extension	=> "",
 
-	hashbangperl	=> "PERL", # Only Unix actually cares
-
+	#### Defaults for the benefit of the config targets who don't inherit
+	#### a BASE and assume Unixly defaults
+	#### THESE WILL DISAPPEAR IN OpenSSL 1.2
 	build_scheme	=> [ "unified", "unix" ],
 	build_file	=> "Makefile",
+
+	ar		=> "ar",
+	arflags		=> "r",
+	cc		=> "cc",
+	hashbangperl	=> "/usr/bin/env perl",
+	ranlib		=> sub { which("$config{cross_compile_prefix}ranlib") ?
+				     "\$(CROSS_COMPILE)ranlib" : "true"; },
+	rc		=> "windres",
+
+	#### THESE WILL BE ENABLED IN OpenSSL 1.2
+	#hashbangperl	=> "PERL", # Only Unix actually cares
     },
 
     BASE_common => {