Installing pyfftw on mac OSX

I am trying to install pyfftw on mac OSX using pip. Here is what I have already done.

I have installed fftw using brew install fftw, and also tested the linking, by compiling and running the following code:

#include <fftw3.h>int main() {    printf("Hello, FFTW!\n");    return 0;}

with

gcc -o test test.cpp -I/opt/homebrew/opt/fftw/include -L/opt/homebrew/opt/fftw/lib -lfftw3

which runs fine and prints Hello, FFTW as expected.After this I added the following lines to my .zshrc file:

export PATH=/opt/homebrew/bin:$PATHexport PATH=/opt/homebrew:$PATHexport DYLD_LIBRARY_PATH=/opt/homebrew/lib:$DYLD_LIBRARY_PATHexport LDFLAGS="-Wl,-S,-rpath,/opt/homebrew/opt/fftw/lib -L/opt/homebrew/opt/fftw/lib"export CFLAGS="-Wno-implicit-function-declaration -I/opt/homebrew/opt/fftw/include"

When after sourcing the zshrc file I try pip install pyfftw from within a conda environment, I get the error message:

  ld: library 'fftw3f' not found

From this message, DEBUG:__main__:Checking with includes ['fftw3.h']...ok I believe it is able to locate the header file but the linker is not finding the libraries. Any help will be greatly appreciated.