This uses the result AC_CANONICAL_HOST and a pre-existing case statement checking for mingw32, cygwin, interix to determine if the build system is Windows based... We make the not unreasonable assumption that if the build system is Windows based, the tests will also be running on a Windows system.
Currently, slapd links libsystemd to notify service state to systemd.
However, libsystemd link several unnecessary libraries, which increases security risks.
The systemd documentation provides a method to send state notifications to systemd using a simple protocol without the need to link against libsystemd.
https://www.freedesktop.org/software/systemd/man/devel/sd_notify.html
Streamline configuration of slapd modules. Just use the
appropriate OL_ARG_ENABLE_xx, then almost no other edits
will be needed in configure.ac when adding new modules.
Backends will still have to add their Makefile to the
AC_CONFIG_FILES() list.
When configuring OpenLDAP using --with-tls=openssl with LibreSSL the
configure will fail to detect SSL_export_keyring_material_early() since
LibreSSL doesn't support this function yet. However OpenLDAP doesn't
actually use this function and only checks for it to ensure a modern
OpenSSL API is used. This can be easily solved by checking for an
equivalent modern OpenSSL function which both LibreSSL and OpenSSL both
support such as SSL_CTX_set_ciphersuites(). Doing this allows the build
and tests to succeed with modern LibreSSL versions. This was tested with
LibreSSL >= 3.6.
Bug: https://bugs.openldap.org/show_bug.cgi?id=10039
Fix the following warnings:
- -Wimplicit-int (fatal with Clang 16)
- -Wimplicit-function-declaration (fatal with Clang 16)
- -Wincompatible-function-pointer-types (fatal with Clang 16)
- -Wint-conversion (fatal with Clang 15)
- Old style prototypes (K&R, removed from C23)
These warnings-now-error led to misconfigurations and failure to build
OpenLDAP, as the tests used during configure caused the wrong results
to be emitted.
For more information, see LWN.net [0] or LLVM's Discourse [1], the Gentoo wiki [2],
or the (new) c-std-porting mailing list [3].
[0] https://lwn.net/Articles/913505/
[1] https://discourse.llvm.org/t/configure-script-breakage-with-the-new-werror-implicit-function-declaration/65213
[2] https://wiki.gentoo.org/wiki/Modern_C_porting
[3] hosted at lists.linux.dev.
Bug: https://bugs.gentoo.org/871288
Signed-off-by: Sam James <sam@gentoo.org>
