Gadget 2 : make or cmake error / Amuse 26.03

[christianboily]

To compile Gadget2 I issued the command below :

(Amuse_Tahoe) cmb@FudiProM2(/opt/work/cmb/Amuse/Amuse_Tahoe/Amuse-2026.3.0){83} > ./setup install amuse-gadget2
Checking for dependencies, one moment please...

--> This works fine under the Conda forge installation, but the same instruction with a McPorts installation and still using gcc13.4 as
--> for the Conda environment I get :

Cleaning amuse-gadget2...

Makefile:27: *** mixed implicit and normal rules.  Stop.

Building and installing amuse-gadget2...

Makefile:2: support/config.mk: No such file or directory
Makefile:27: *** mixed implicit and normal rules. Stop.

amuse-gadget2 failed to build and install correctly.

This is not supposed to happen!

Please contact the developers on Slack or make an issue on GitHub,
so that we can fix this together.

This is odd because Gadget2 installed fine under McPorts with Amuse-2025.03 and prior versions.
The only major difference I spotted is that Conda install cmake 4.3 ++ while McPorts uses cmake 3.31 : could there be some
tolerance in the instructions patterns (in the Makefiles) that I should change ? cmake 4 does not seem to be available under
McPorts.

Cheers,

Chri s B.

[christianboily]

ps - update : I downgrade cmake 4.3 --> 3.31.8 from conda forge but the result is the same, so this is not a cmake issue

pps - I forgot to add that I am running on Mac OS26.3 (not on a virtual machine).