Setting INTERFACE_COMPILE_OPTIONS for hpx_init in CMake taints Fortran_FLAGS

[gentryx]

When one adds hpx_init via target_link_libraries() to a target which includes a Fortran source file then compilation of the Fortran source will fail because "-std=c++14" is added to the Fortran compiler flags.

[sithhell]

Am 30.01.2016 10:38 nachm. schrieb "Andreas Schäfer" <
notifications@github.com>:

When one adds hpx_init via target_link_libraries() to a target which includes a Fortran source file then compilation of the Fortran source will fail because "-std=c++14" is added to the Fortran compiler flags.

Why do you need to link Fortran sources against libhpx_init/libhpx?

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[sithhell]

Could you post the target property LINKER_LANGUAGE for your library target
please? We might be able to do something there...
Am 31.01.2016 9:52 vorm. schrieb "Thomas Heller" thom.heller@gmail.com:

Am 30.01.2016 10:38 nachm. schrieb "Andreas Schäfer" <
notifications@github.com>:

When one adds hpx_init via target_link_libraries() to a target which
includes a Fortran source file then compilation of the Fortran source will
fail because "-std=c++14" is added to the Fortran compiler flags.

Why do you need to link Fortran sources against libhpx_init/libhpx?

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[gentryx]

• I have an executable where the C++ code needs to link against both, HPX and a Fortran kernel
• the LINKER_LANGUAGE property of the executable's CMake target is undefined
• I only get this error with gfortran 4.8.5. gfortran 4.9.3 succeeds (throws a warning instead of an error).
• Since I now have a workaround, you could close this ticket. I still feel it's a bug that ought to be fixed.

[hkaiser]

@gentryx How would you propose to fix this issue? Could you create a small reproducing use case for us to try, please?

[hkaiser]

I'll go ahead and close this. Please feel free to reopen if the issue starts blocking you again.