Linker error when compiling on macOS 26.5.1

[MarkusSchwarz1980]

I cloned SRW from GitHub to my MacBook running macOS 26.5.1.
When I run make all I get the following error:
clang++ [...] -L/[...]/SRW/ext_lib -lsrw -lm -lfftw3f -lfftw3 -o ../gcc/srwlpy.cpython-314-darwin.so [...] ld: library 'fftw3f' not found clang++: error: linker command failed with exit code 1 (use -v to see invocation) error: command '/usr/bin/clang++' failed with exit code 1
It seems to me that the linker does not find the correct files in the ext_lib subfolder. I was not able to track down the error. Thanks for your help. (I managed to compile after a counseling session with chatGPT, but it would be nice if this were fixed properly.)

[rafaelcelestre]

Hello @MarkusSchwarz1980 , I am also using SRW on a MacBook (Apple M1 Pro - macOS 26.5.1).

I usually use the steps below for compiling SRW. After you opened this issue, I retested them and they still work:

• miniforge as a lightweight way to manage Python environments:

brew install miniforge
conda init zsh 

• SRW compilation on a Silicon Mac

Start with:
brew install cmake ninja
Make sure fftw is present:
ls $CONDA_PREFIX/lib | grep fftw
If nothing is returned, do:
conda install -c conda-forge fftw
On the main level of the SRW folder:
make all

that should work...