October 26, 2024
Chicago 12, Melborne City, USA
C++

VS 2022 & fftw3 Unrecognised external symbol while compiling


I installed Precompiled FFTW 3.3.5 Windows DLLs on my laptop, added in Configuration Properties:
C/C++, General, Additional Include Directories, *"unzip location"
Linker, General, Additional Library Directories, *"unzip location"
Linker, Input, Additional Dependencies, libfftw3-3.lib

and included #include <fftw3.h> in my program.

When I try to compile (Debug) I get: Error C1083 Cannot open include file: fftw3.h: No such file or directory.
For Debug configuration the #include is red underscored, in Release not. When red underscored it advises me to use command command "vcpkg install fftw3:x64-windows".

*Directory of C:\Users\Caster\Downloads\fftw-3.3.5-dll64

26.10.2024 14:53 18 517 fftw3.h

What’s the problem and how to fix it?



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