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61 lines
1.6 KiB
Plaintext
61 lines
1.6 KiB
Plaintext
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=pod
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=head1 NAME
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openssl_user_macros, OPENSSL_API_COMPAT - User defined macros
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=head1 DESCRIPTION
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User defined macros allow the programmer to control certain aspects of
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what is exposed by the OpenSSL headers.
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B<NOTE:> to be effective, a user defined macro I<must be defined
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before including any header file that depends on it>, either in the
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compilation command (C<cc -DMACRO=value>) or by defining the macro in
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source before including any headers.
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Other manual pages may refer to this page when declarations depend on
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user defined macros.
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=head2 The macros
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=over
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=item B<OPENSSL_API_COMPAT>
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The value is a version number similar to the
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L<OPENSSL_VERSION_NUMBER(3)> macro. Any symbol that is deprecated in
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versions up to and including the version given in this macro will not
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be declared. Any version number may be given, but these numbers are
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the current known major deprecation points, making them the most
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meaningful:
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=over
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=item C<0x00908000L> (version 0.9.8)
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=item C<0x10000000L> (version 1.0.0)
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=item C<0x10100000L> (version 1.1.0)
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=back
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If not set, this macro will default to
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C<{- join('', map { my @x = split /=/,$_; $x[1] }
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grep /^OPENSSL_MIN_API=/, @{$config{openssl_api_defines} // []})
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|| '0x00000000L'
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-}>.
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=back
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=head1 COPYRIGHT
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Copyright 2018 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the OpenSSL license (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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