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

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

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+=pod
+
+=begin comment
+
+WARNING: do not edit!
+Generated by Makefile from doc/man1/openssl-dhparam.pod.in
+
+=end comment
+
+=head1 NAME
+
+openssl-dhparam - DH parameter manipulation and generation
+
+=head1 SYNOPSIS
+
+B<openssl dhparam>
+[B<-help>]
+[B<-inform> B<DER>|B<PEM>]
+[B<-outform> B<DER>|B<PEM>]
+[B<-in> I<filename>]
+[B<-out> I<filename>]
+[B<-dsaparam>]
+[B<-check>]
+[B<-noout>]
+[B<-text>]
+[B<-verbose>]
+[B<-quiet>]
+[B<-2>]
+[B<-3>]
+[B<-5>]
+[B<-engine> I<id>]
+[B<-rand> I<files>]
+[B<-writerand> I<file>]
+[B<-provider> I<name>]
+[B<-provider-path> I<path>]
+[B<-propquery> I<propq>]
+[I<numbits>]
+
+=head1 DESCRIPTION
+
+This command is used to manipulate DH parameter files.
+
+See L<openssl-genpkey(1)/EXAMPLES> for examples on how to generate
+a key using a named safe prime group without generating intermediate
+parameters.
+
+=head1 OPTIONS
+
+=over 4
+
+=item B<-help>
+
+Print out a usage message.
+
+=item B<-inform> B<DER>|B<PEM>, B<-outform> B<DER>|B<PEM>
+
+The input format and output format; the default is B<PEM>.
+The object is compatible with the PKCS#3 B<DHparameter> structure.
+See L<openssl-format-options(1)> for details.
+
+=item B<-in> I<filename>
+
+This specifies the input filename to read parameters from or standard input if
+this option is not specified.
+
+=item B<-out> I<filename>
+
+This specifies the output filename parameters to. Standard output is used
+if this option is not present. The output filename should B<not> be the same
+as the input filename.
+
+=item B<-dsaparam>
+
+If this option is used, DSA rather than DH parameters are read or created;
+they are converted to DH format.  Otherwise, safe primes (such
+that (p-1)/2 is also prime) will be used for DH parameter generation.
+
+DH parameter generation with the B<-dsaparam> option is much faster.
+Beware that with such DSA-style DH parameters, a fresh DH key should be
+created for each use to avoid small-subgroup attacks that may be possible
+otherwise.
+
+=item B<-check>
+
+Performs numerous checks to see if the supplied parameters are valid and
+displays a warning if not.
+
+=item B<-2>, B<-3>, B<-5>
+
+The generator to use, either 2, 3 or 5. If present then the
+input file is ignored and parameters are generated instead. If not
+present but I<numbits> is present, parameters are generated with the
+default generator 2.
+
+=item I<numbits>
+
+This option specifies that a parameter set should be generated of size
+I<numbits>. It must be the last option. If this option is present then
+the input file is ignored and parameters are generated instead. If
+this option is not present but a generator (B<-2>, B<-3> or B<-5>) is
+present, parameters are generated with a default length of 2048 bits.
+The minimum length is 512 bits. The maximum length is 10000 bits.
+
+=item B<-noout>
+
+This option inhibits the output of the encoded version of the parameters.
+
+=item B<-text>
+
+This option prints out the DH parameters in human readable form.
+
+=item B<-engine> I<id>
+
+See L<openssl(1)/Engine Options>.
+This option is deprecated.
+
+=item B<-rand> I<files>, B<-writerand> I<file>
+
+See L<openssl(1)/Random State Options> for details.
+
+=item B<-provider> I<name>
+
+=item B<-provider-path> I<path>
+
+=item B<-propquery> I<propq>
+
+See L<openssl(1)/Provider Options>, L<provider(7)>, and L<property(7)>.
+
+=item B<-verbose>
+
+This option enables the output of progress messages, which is handy when
+running commands interactively that may take a long time to execute.
+
+=item B<-quiet>
+
+This option suppresses the output of progress messages, which may be
+undesirable in batch scripts or pipelines.
+
+=back
+
+=head1 NOTES
+
+This command replaces the B<dh> and B<gendh> commands of previous
+releases.
+
+=head1 SEE ALSO
+
+L<openssl(1)>,
+L<openssl-pkeyparam(1)>,
+L<openssl-dsaparam(1)>,
+L<openssl-genpkey(1)>.
+
+=head1 HISTORY
+
+The B<-engine> option was deprecated in OpenSSL 3.0.
+
+The B<-C> option was removed in OpenSSL 3.0.
+
+=head1 COPYRIGHT
+
+Copyright 2000-2023 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