ROOT component Fitsio not found when building with cmake

ROOT
1

Dear rooters,

I use the following CMakeLists.txt to build a project whose only dependency is root.
If I use the -DUSE_FITISO=ON option when building the project I add Fitsio to the required components for ROOT, in the project’s CMakeLists.txt I added:

# load ROOT libraries, define a cache variable to enable FITSIO support 
# if USE_FITSIO is selected, Fitsio is added to the ROOT requirements   
set(ROOT_REQUIRED_COMPONENTS Minuit)
option(USE_FITSIO "Enable support for FITS files I/O" OFF)                      
if(USE_FITSIO)                     
    list(APPEND ROOT_REQUIRED_COMPONENTS Fitsio)
endif()   
find_package(ROOT REQUIRED ${ROOT_REQUIRED_COMPONENTS})
message("-- Required ROOT components are: ${ROOT_REQUIRED_COMPONENTS}")

Now the problem is that this component is not found, when building I get:

(root_v6-22-6) cosimo@posimo:~/work/gLike/build$ cmake ../ -DUSE_FITSIO=ON
-- The C compiler identification is GNU 9.3.0
-- The CXX compiler identification is GNU 9.3.0
-- Check for working C compiler: /home/cosimo/software/miniconda3/envs/root_v6-22-6/bin/x86_64-conda-linux-gnu-cc
-- Check for working C compiler: /home/cosimo/software/miniconda3/envs/root_v6-22-6/bin/x86_64-conda-linux-gnu-cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /home/cosimo/software/miniconda3/envs/root_v6-22-6/bin/x86_64-conda-linux-gnu-c++
-- Check for working CXX compiler: /home/cosimo/software/miniconda3/envs/root_v6-22-6/bin/x86_64-conda-linux-gnu-c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Error at /home/cosimo/software/miniconda3/envs/root_v6-22-6/cmake/ROOTConfig.cmake:159 (message):
  ROOT component Fitsio not found
Call Stack (most recent call first):
  CMakeLists.txt:17 (find_package)


-- Configuring incomplete, errors occurred!
See also "/home/cosimo/work/gLike/build/CMakeFiles/CMakeOutput.log".

Fitsio is not found despite ROOT has been successfully compiled with it

(root_v6-22-6) cosimo@posimo:~/work/gLike/build$ root-config --has-fitsio
yes

I get the same error both if I manually compile root or if I use the root provided with conda.
Am I mistaking the name of the component?

Any help is highly apprectiated,
Thanks a lot!
Cosimo

ROOT Version: 6.22.06
Platform: Ubuntu (18.04 and 20.04)

2

Hi,
I think you are telling ROOT to use fitsio but you don’t have it installed in your system, so you also need -Dbuiltin_cfitsio=ON to tell ROOT to build it itself.

Does that help?
Cheers,
Enrico

3

Thanks @eguiraud,

I did compile ROOT with builtin_cfitsio=ON. This is the line I use to build it

cmake -S /soft/root/source/root -Dmathmore=ON -Dminuit2=ON -Dbuiltin_cfitsio=ON

had I not specified that root-config --has-fitsio should have returned no. Right?

I get the same error both if I manually compile root or if I use the root provided with conda.

Also the root available with miniconda has already fitsio extension available, if I am not wrong.

Thanks.

4

Ah I see, I misunderstood. So you are sure your ROOT has fitsio, but a find_package(ROOT REQUIRED Fitsio) in your project that depends on ROOT fails with ROOT component Fitsio not found anyway.

@oshadura any idea?

5

So you are sure your ROOT has fitsio, but a find_package(ROOT REQUIRED Fitsio) in your project that depends on ROOT fails with ROOT component Fitsio not found anyway.

That’s exactly it!

Thanks,
Cosimo

6

Check the ROOT’s targets in your own “ROOTConfig-targets*.cmake” import files (e.g., it’s “FITSIO”, not “Fitsio”).

7

Please try find_package(ROOT REQUIRED ROOT::FITSIO)

8

Thank you both @Wile_E_Coyote, @oshadura, it actually worked with find_package(ROOT REQUIRED FITSO), not with find_package(ROOT REQUIRED ROOT::FITSIO).
Thanks!

9

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