
This commit to mainline GCC git adds support for the Haiku operating system. Alexander von Gluck IV explained in that Git commit message:
"These are the os support patches we have been grooming and maintaining for quite a few years over on git.haiku-os.org. All of these architectures are working and most have been stable for quite some time."
Adding the *-*-haiku* configure target was needed as well as some other build system changes around the existing BeOS code in GCC.
These Haiku additions and any other Haiku-targeted improvements will be part of next year's GCC 14 stable release.