[cmake-developers] ncurses sub-dir and include path

[Brad King]

On 8/1/19 6:35 PM, Christoph Grüninger wrote:
>> Why is that wrong?  As you said it has both `ncurses.h` and `curses.h`.
>> Even though they are symlinks one can still use them to compile.
> 
> CMake includes form.h, not (n)curses.h. So form.h is later not found,
> because after finding (n)curses.h in /usr/include the search is over.

Ah!  CMake's bundled `Source/CursesDialog/form/form.h` which I linked
earlier in this thread has all the logic to select the proper curses
header to include based on the FindCurses result.  However, IIUC you
are actually building with `CMAKE_USE_SYSTEM_FORM` enabled so that
CMake's `form.h` is not used.

This is actually a bug in our handling of `CMAKE_USE_SYSTEM_FORM`.
When that is turned on we should be looking for the location of
`form.h` rather than `*curses.h`.  Please open an issue tracker
entry for this.

-Brad