Configure: Recognise .rc and .def / .map / .opt as source files

This makes it possible to add build.info statements for using resource
files as well as linker scripts (.def for Windows, .map for Unix, and
.opt for VMS) is if they were source files.  This requires changes in
the build file templates.

Reviewed-by: Andy Polyakov <appro@openssl.org>
Reviewed-by: Rich Salz <rsalz@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/4840)

Configure

diff --git a/Configure b/Configure
index a5d5c84..5abbd72 100755
--- a/Configure
+++ b/Configure
@@ -1875,14 +1875,27 @@
                 if (! -f $s) {
                     $s = cleanfile($buildd, $_, $blddir);
                 }
-                # We recognise C++, C and asm files
+
                 if ($s =~ /\.(cc|cpp|c|s|S)$/) {
+                    # We recognise C++, C and asm files
                     my $o = $_;
                     $o =~ s/\.[csS]$/.o/; # C and assembler
                     $o =~ s/\.(cc|cpp)$/_cc.o/; # C++
                     $o = cleanfile($buildd, $o, $blddir);
                     $unified_info{shared_sources}->{$ddest}->{$o} = 1;
                     $unified_info{sources}->{$o}->{$s} = 1;
+                } elsif ($s =~ /\.rc$/) {
+                    # We also recognise resource files
+                    my $o = $_;
+                    $o =~ s/\.rc$/.res/; # Resource configuration
+                    my $o = cleanfile($buildd, $o, $blddir);
+                    $unified_info{shared_sources}->{$ddest}->{$o} = 1;
+                    $unified_info{sources}->{$o}->{$s} = 1;
+                } elsif ($s =~ /\.(def|map|opt)$/) {
+                    # We also recognise .def / .map / .opt files
+                    # We know they are generated files
+                    my $def = cleanfile($buildd, $s, $blddir);
+                    $unified_info{shared_sources}->{$ddest}->{$def} = 1;
                 } else {
                     die "unrecognised source file type for shared library: $s\n";
                 }