Updated build.sh to build curl, openssl, and 256k1 if needed

openssl-3.4.2/doc/man1/openssl-errstr.pod

@@ -0,0 +1,60 @@
+=pod
+
+=begin comment
+
+WARNING: do not edit!
+Generated by Makefile from doc/man1/openssl-errstr.pod.in
+
+=end comment
+
+=head1 NAME
+
+openssl-errstr - lookup error codes
+
+=head1 SYNOPSIS
+
+B<openssl errstr>
+[B<-help>]
+I<error_code...>
+
+=head1 DESCRIPTION
+
+Sometimes an application will not load error message texts and only
+numerical forms will be available. This command can be
+used to display the meaning of the hex code. The hex code is the hex digits
+after the second colon.
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-help>
+
+Display a usage message.
+
+=back
+
+=head1 EXAMPLES
+
+The error code:
+
+ 27594:error:2006D080:lib(32)::reason(128)::107:
+
+can be displayed with:
+
+ openssl errstr 2006D080
+
+to produce the error message:
+
+ error:2006D080:BIO routines::no such file
+
+=head1 COPYRIGHT
+
+Copyright 2004-2020 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the Apache License 2.0 (the "License").  You may not use
+this file except in compliance with the License.  You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut