https://bugs.openldap.org/show_bug.cgi?id=10011
Issue ID: 10011 Summary: Incompatibilities with stricter C99 compilers Product: OpenLDAP Version: 2.6.4 Hardware: All OS: All Status: UNCONFIRMED Keywords: needs_review Severity: normal Priority: --- Component: build Assignee: bugs@openldap.org Reporter: sam@gentoo.org Target Milestone: ---
Newer C compilers (>= Clang 16 and likely >= GCC 14) reject some constructs removed in C99 like implicit function declarations and implicit ints. Some compilers are also starting to reject obsolete K&R prototypes which were removed in C23.
I've filed an MR at https://git.openldap.org/openldap/openldap/-/merge_requests/605 to address the issues in configure as well as a small number of issues in the codebase itself.
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-i... [2] https://wiki.gentoo.org/wiki/Modern_C_porting [3] hosted at lists.linux.dev.