When the C parser tries to parse K&R style function declarations it fails giving an "Unexpected token 'identifier'" error. You can see an example of this by loading this file into KDevelop: https://github.com/krb5/krb5/blob/master/src/lib/gssapi/mechglue/g_inq_cred.c
Hello! We are working on a new clang-based C/C++ language plugin for KDevelop 5 which supersedes the old C++ plugin in KDevelop 4. See e.g.: https://www.kdevelop.org/news/first-beta-release-kdevelop-500-available Due to a lack of manpower, we cannot fix bugs in the old C++ plugin. We rather want to supply a good Clang based C++ experience for KDevelop 5 than wasting our time on the legacy C++ support for KDevelop 4. With the new clang-based C/C++ language plugin, the bug presented here does not occur in my testing. For these reasons, I'll close this bug. Please stay tuned for KDevelop 5. If you think this bug is applicable to Clang/KDevelop 5, please reopen the report and add new information on how to reproduce the bug there. Sorry for the inconvenience, I hope you understand the reasoning above. Cheers
That's fine! I just pulled the KDevelop beta from Fedora Rawhide and it works :) Thanks for your help!