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INSTALL.md: mention that no-atexit has no effect

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Since the atexit() handler was removed in [1], no-atexit configuration
option has no effect, so update the documentation accordingly.

[1] https://github.com/openssl/openssl/pull/29385

References: https://github.com/openssl/openssl/pull/30742
Signed-off-by: Eugene Syromiatnikov <esyr@openssl.org>

Reviewed-by: Nikola Pajkovsky <nikolap@openssl.org>
Reviewed-by: Saša Nedvědický <sashan@openssl.org>
MergeDate: Tue Apr 14 08:50:35 2026
(Merged from https://github.com/openssl/openssl/pull/30776)
This commit is contained in:
Eugene Syromiatnikov
2026-04-11 12:14:42 +02:00
committed by Nikola Pajkovsky
parent bdfac7bb66
commit b632e79f0c
1 changed files with 3 additions and 3 deletions
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INSTALL.md
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@@ -643,9 +643,9 @@ Do not build support for async operations.
Do not use `atexit()` in libcrypto builds.
`atexit()` has varied semantics between platforms and can cause SIGSEGV in some
circumstances. This option disables the atexit registration of OPENSSL_cleanup.
By default, NonStop configurations use `no-atexit`.
Before version 4.0, OpenSSL used to set `atexit()` handler for cleaning up
global data, and this option allowed to disable that functionality. `atexit()`
handler setup was removed in OpenSSL 4.0, so this option does nothing now.
### no-autoalginit