This is how the patch was originally intended.

However, editors/emacs still fails to find libgccjit.h. Would it be possible to change the port so that it searches the header in /usr/local/lib/gcc11/gcc/x86_64-portbld-freebsd13.1/11.3.0/include ? Should I find a better directory where to put libgccjit.h?

If this takes too much time and build failure for emacs is a problem, feel free to revert c81d834b23446b10ac46c7f9378251baa11636b1 while we find the right solution.

The change here doesn't solve the problem with Emacs not finding the jit headers. After dc67e7d3009de2b78d96136c8ad09cf186e553df include/libgccjit.h and include/libgccjit++.h) are no longer installed.

I can get Emacs to successfully configure by adding this ugly line to the port Makefile.

CFLAGS+= -I${LOCALBASE}/lib/gcc11/gcc/x86_64-portbld-freebsd${OSREL}/11.3.0/include

Would it make more sense for GCC to modify the include path? Other ports are likely going to want these headers at some point.

Would it make more sense for GCC to modify the include path? Other ports are likely going to want these headers at some point.

Actually, at the moment GCC installs those headers in $(DESTDIR)$(includedir) and not where I have moved them, but this does not work either as it generates the conflict described in https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=257060 when a user attempts to install multiple versions of GCC. The location I tried was suggested in the upstream bug report https://gcc.gnu.org/bugzilla/show_bug.cgi?id=101491 that has not got any progress since 2022-01-20.

Are you aware of any location that would work both to avoid conflicts when installing multiple versions of GCC and to configure emacs properly?

I have reverted dc67e7d3009de2b78d96136c8ad09cf186e553df for now, so we can take our time with this without any issue for emacs.

Please see 9f0cd13014d0962aedfa016c86a5af07ca3ba814.