[CMake] Fortran 90 modules not rebuilt

[K. Noel Belcourt]

On Nov 17, 2010, at 11:18 AM, Brad King wrote:

> On 11/17/2010 12:15 PM, K. Noel Belcourt wrote:
>> On Nov 17, 2010, at 10:02 AM, Brad King wrote:
>>> This tells CMake to print some verbose target dependency
>>> information.  I bet it will report "modules" in a non-trivial
>>> connected component with a bunch of other libraries.  Please
>>> send me the output.
>>
> The key output is this:

[ snipped a very clear and concise explanation of the problem ]

> The problem is that nothing has told CMake about these
> module-induced dependencies.  CMake's Fortran dep scanning
> does not occur until build time which is too late to affect the
> target build order (also it only orders files, not targets).
> The solution is to add a line like
>
>   add_dependencies(mylib modules)
>
> for all the libraries whose source files depend on any modules.
> This can probably just be done for all the libraries.

Indeed adding explicit dependencies and updating to 2.8.3 makes it  
work even better than I expected.  A simple make in a clean project  
now builds all modules first, then builds everything else.

Thanks a bunch for the help Brad, you're amazing!

-- Noel