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Don't include engine.h when OPENSSL_NO_ENGINE is defined
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Fedora 41 and RHEL 10 are deprecating and phasing out OpenSSL ENGINE
support. Downstream has moved `openssl/engine.h` into a separate RPM
package and is recompiling packages with `-DOPENSSL_NO_ENGINE=1`. The
compiler flag disables PyCA cryptography's ENGINE support successfully.
We also like to build the downstream package without the `engine.h`
header file present.

This commit makes the include conditional. The `ENGINE` type is
defined in `openssl/types.h`.

See: https://src.fedoraproject.org/rpms/openssl/c/e67e9d9c40cd2cb9547e539c658e2b63f2736762?branch=rawhide
See: https://issues.redhat.com/browse/RHEL-33747
Signed-off-by: Christian Heimes <[email protected]>
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tiran committed Jul 22, 2024
1 parent ad40369 commit 85f2ae2
Showing 1 changed file with 2 additions and 0 deletions.
2 changes: 2 additions & 0 deletions src/_cffi_src/openssl/engine.py
Original file line number Diff line number Diff line change
Expand Up @@ -5,7 +5,9 @@
from __future__ import annotations

INCLUDES = """
#ifndef OPENSSL_NO_ENGINE
#include <openssl/engine.h>
#endif
"""

TYPES = """
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