The Intel Fortran compiler supports an extension that allows conditional
compilation based on preprocessor definitions specified on the command
line even when not preprocessing.
Fixes: #19664
The Intel Fortran `.vfproj` files do support both Fortran and the
Windows Resource compiler (`.rc)` files. Prior to CMake 3.9 we did not
support that, but commit 2c9f35789d (VS: Decide project type by linker
lang as fallback, 2017-03-30, v3.9.0-rc1~340^2) accidentally enabled it.
It was then broken by commit d3d2c3cd49 (VS: Fix Fortran target type
selection when linking C++ targets, 2019-02-04, v3.14.0-rc1~13^2).
Restore support for Fortran+RC in VS projects and add a test case.
Fixes: #19002
This version of the Intel Fortran plugin to Visual Studio says:
please make sure that $(OutDir), $(TargetName) and $(TargetExt)
property values match the value specified in %(Link.OutputFile)
We must set TargetName and TargetExt in addition to the existing
setting for OutputDirectory. The settings do not appear to hurt
older versions of Intel Fortran, so set them unconditionally.
Extend the FortranOnly test to cover a corresponding use case by
using the OUTPUT_NAME target property.
Inspired-by: Ian Harvey <Ian.Harvey@megms.com.au>
Copy the CheckCSourceCompiles module and port it to Fortran.
Extend the FortranOnly test to try using the new module.
Suggested-by: Nicolas Bock <nicolasbock@gmail.com>
Define a "Fortran_FORMAT" target and source file property. Initialize
the target property from a "CMAKE_Fortran_FORMAT" variable. Interpret
values "FIXED" and "FREE" to indicate the source file format. Append
corresponding flags to the compiler command line.
For custom commands in VS2010 Fortran projects the INTDIR variable
is different than in the rest of the solution because Intel
fortran still uses the old VS project files even in VS2010. So,
we replace $(Configuration) directly in the project files. I have also
added a FortranOnly test that tests this feature and is run on any
generator that has Fortran abilities.
