Configure: fix the version string in the configure output

Since `$config{version}` and `$config{version_num}` were removed
in commit 3a63dbef15b6, the configure output displays an empty
version number string in parentheses instead of the version number.

This pull request fixes that by adding new config variables
`version` and `full_version`, analogous to `OPENSSL_VERSION_STR`
and `OPENSSL_FULL_VERSION_STR`.

Reviewed-by: Richard Levitte <levitte@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/7841)

Configurations/descrip.mms.tmpl

@@ -104,7 +104,7 @@ BLDDIR={- $config{builddir} -}
 # to testing.
 VERBOSE=$(V)
 
-VERSION={- "$config{major}.$config{minor}.$config{patch}$config{prerelease}$config{build_metadata}" -}
+VERSION={- "$config{full_version}" -}
 MAJOR={- $config{major} -}
 MINOR={- $config{minor} -}
 SHLIB_VERSION_NUMBER={- $config{shlib_version} -}

Configurations/unix-Makefile.tmpl

@@ -88,7 +88,7 @@ CONFIGURE_ARGS=({- join(", ",quotify_l(@{$config{perlargv}})) -})
 SRCDIR={- $config{sourcedir} -}
 BLDDIR={- $config{builddir} -}
 
-VERSION={- "$config{major}.$config{minor}.$config{patch}$config{prerelease}$config{build_metadata}" -}
+VERSION={- "$config{full_version}" -}
 MAJOR={- $config{major} -}
 MINOR={- $config{minor} -}
 SHLIB_VERSION_NUMBER={- $config{shlib_version} -}

Configurations/windows-makefile.tmpl

@@ -71,7 +71,7 @@ PLATFORM={- $config{target} -}
 SRCDIR={- $config{sourcedir} -}
 BLDDIR={- $config{builddir} -}
 
-VERSION={- "$config{major}.$config{minor}.$config{patch}$config{prerelease}$config{build_metadata}" -}
+VERSION={- "$config{full_version}" -}
 MAJOR={- $config{major} -}
 MINOR={- $config{minor} -}
 

Configure

@@ -276,6 +276,9 @@ die "erroneous version information in opensslv.h: ",
             || $config{patch} eq "unknown"
             || $config{shlib_version} eq "unknown");
 
+$config{version} = "$config{major}.$config{minor}.$config{patch}";
+$config{full_version} = "$config{version}$config{prerelease}$config{build_metadata}";
+
 # Collect target configurations
 
 my $pattern = catfile(dirname($0), "Configurations", "*.conf");
@@ -999,8 +1002,8 @@ if ($target eq "HASH") {
     exit 0;
 }
 
-print "Configuring OpenSSL version $config{version} ($config{version_num}) ";
-print "for $target\n";
+print "Configuring OpenSSL version $config{full_version} ";
+print "for target $target\n";
 
 if (scalar(@seed_sources) == 0) {
     print "Using os-specific seed configuration\n";