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authorTomas Mraz <tomas@openssl.org>2021-07-15 13:37:26 +0200
committerTomas Mraz <tomas@openssl.org>2021-07-16 14:37:18 +0200
commit24f84b4e4dbde9d8ef7a5ebb4b3c2ca22fd4cd22 (patch)
tree906ca2abc450baa33c476bdc7a1833c2bd1494f0 /doc/man7/migration_guide.pod
parent3bec48515354bc4138ce14c5aafc2c9e3bcc473f (diff)
doc: It is not possible to use SSL_OP_* value in preprocessor conditions
Fixes #16082 Reviewed-by: Paul Dale <pauli@openssl.org> Reviewed-by: Matt Caswell <matt@openssl.org> (Merged from https://github.com/openssl/openssl/pull/16084)
Diffstat (limited to 'doc/man7/migration_guide.pod')
-rw-r--r--doc/man7/migration_guide.pod4
1 files changed, 3 insertions, 1 deletions
diff --git a/doc/man7/migration_guide.pod b/doc/man7/migration_guide.pod
index aac158795c..8cc9bd5fc8 100644
--- a/doc/man7/migration_guide.pod
+++ b/doc/man7/migration_guide.pod
@@ -2235,7 +2235,9 @@ SSL and SSL_CTX options are now 64 bit instead of 32 bit.
The signatures of the functions to get and set options on SSL and
SSL_CTX objects changed from "unsigned long" to "uint64_t" type.
-This may require source code changes.
+This may require source code changes. For example it is no longer possible
+to use the B<SSL_OP_> macro values in preprocessor C<#if> conditions.
+However it is still possible to test whether these macros are defined or not.
See L<SSL_CTX_get_options(3)>, L<SSL_CTX_set_options(3)>,
L<SSL_get_options(3)> and L<SSL_set_options(3)>.