Created attachment 1962166 [details]
The cmake file depicted (3 lines) in the steps to reproduce.

Description of problem: When trying to detect fftw3 with cmake, cmake reports that the file /usr/lib64/cmake/fftw3/FFTW3LibraryDepends.cmake is missing.

Version-Release number of selected component (if applicable):
fftw-devel-3.3.10-3.fc37.x86_64

How reproducible:
Totally reproducible

Steps to Reproduce:
1.Create a directory
2.In that directory, create a file named CMakeLists.txt that contains the 3 lines:

cmake_minimum_required(VERSION 3.26)
project(test CXX)
find_package(FFTW3 REQUIRED)

3. Make a subdirectory build and move in it.
4. cmake .

Actual results:
mururoa-> cmake ..
-- The CXX compiler identification is GNU 13.1.1
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at /usr/lib64/cmake/fftw3/FFTW3Config.cmake:13 (include):
  include could not find requested file:

    /usr/lib64/cmake/fftw3/FFTW3LibraryDepends.cmake
Call Stack (most recent call first):
  CMakeLists.txt:5 (find_package)

Expected results:
No error.

Additional info:
Creating an empty file is enough to remove the error. But that probably not the best way to handle it.