Error is:<br /><br />configure:16952: /N/soft/sles15sp6/cp2k/build/cp2k-2025.2/tools/toolchain/build/libvdwxc-0.4.0/config/wrappers/wrap-mpicc -c -O2 -fPIC -fno-omit-frame-pointer -fopenmp -g -mtune=native -fpermissive  -I'/opt/cray/pe/fftw/3.3.10.10/x86_rome/include' conftest.c >&5<br />conftest.c:65:10: fatal error: fftw3.h: No such file or directory<br />   65 | #include <fftw3.h><br />      |          ^~~~~~~~~<br />compilation terminated.<br /><br />Does file /opt/cray/pe/fftw/3.3.10.10/x86_rome/include/fftw3.h exist?

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