Improve libcrypto obj_xref.h generator

Modify objxref.pl to output $OpenBSD$ header and
__BEGIN_HIDDEN_DECLS / __END_HIDDEN_DECLS .

ok and comment from tb@

diff --git a/lib/libcrypto/objects/objxref.pl b/lib/libcrypto/objects/objxref.pl
index 731d3ae..8873c91 100644 (file)
--- a/lib/libcrypto/objects/objxref.pl
+++ b/lib/libcrypto/objects/objxref.pl
@@ -60,8 +60,11 @@ my $pname = $0;
 $pname =~ s|^.[^/]/||;
 
 print <<EOF;
+/* \$OpenBSD\$ */
 /* AUTOGENERATED BY $pname, DO NOT EDIT */
 
+__BEGIN_HIDDEN_DECLS
+
 typedef struct
        {
        int sign_id;
@@ -95,6 +98,7 @@ foreach (@srt2)
        }
 
 print "\t};\n\n";
+print "__END_HIDDEN_DECLS\n";
 
 sub check_oid
        {