Review Request 113406: Add a macro to automatically generate forward headers
Stephen Kelly
steveire at gmail.com
Tue Oct 29 10:56:25 UTC 2013
> On Oct. 24, 2013, 1:54 p.m., Stephen Kelly wrote:
> > modules/ECMGenerateHeaders.cmake, line 32
> > <http://git.reviewboard.kde.org/r/113406/diff/2/?file=205462#file205462line32>
> >
> > I recommend not putting this in the API of the function, and instead users should use
> >
> > install(DIRECTORY) to install the generated files.
>
> Aleix Pol Gonzalez wrote:
> Why?
>
> Stephen Kelly wrote:
> I think it's better API. It's what all existing functions which generate headers do.
>
> Aleix Pol Gonzalez wrote:
> Then it's weird because we'll need to have a separate call for installing all the headers as well, so we will have them all listed twice.
>
> Stephen Kelly wrote:
> Are you sure? You wouldn't just have a single install(DIRECTORY), as I wrote before?
>
> Aleix Pol Gonzalez wrote:
> See the KParts patch I attached. We want to install the "actual" header, not the forward header, right?
>
> Stephen Kelly wrote:
> Your kparts patch contains this:
>
> +#still need to see what to do with these...
> +# install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/kparts DESTINATION ${INCLUDE_INSTALL_DIR} COMPONENT Devel )
>
> Why would you install the contents of ${CMAKE_CURRENT_BINARY_DIR}/kparts ? It contains hardcoded source dir paths. They don't need to though. If srcdir/part.h exists, then write include 'part.h' to that file, not 'srcdir/part.h'. The source dir is already part of the -I passed to the compiler (recall that I wrote before "I think that because the source dir is already in the INTERFACE_INCLUDE_DIRECTORIES of the target"), so no need to hardcode it at all.
>
> Actually reading your message again, I think that's what you are asking me. Yes, you want to install the actual headers.
>
> Aleix Pol Gonzalez wrote:
> Yes, so we can install the headers either from the macro or from the CMakeLists.txt. If we do it from the CMakeLists.txt files, we'll end up having to list the headers twice.
>
> See updated diff.
You can also populate an out-list. See for example what QT4_EXTRACT_OPTIONS does with _qt4_files.
- Stephen
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On Oct. 29, 2013, 10:52 a.m., Aleix Pol Gonzalez wrote:
>
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> http://git.reviewboard.kde.org/r/113406/
> -----------------------------------------------------------
>
> (Updated Oct. 29, 2013, 10:52 a.m.)
>
>
> Review request for Build System, KDE Frameworks and Stephen Kelly.
>
>
> Repository: extra-cmake-modules
>
>
> Description
> -------
>
> Create a macro that will generate the forward headers like we used to, in cmake configure time.
>
> Here's an example of how we'd port KParts to that macro: http://paste.opensuse.org/9880051
> After the change, these are the installed headers: http://paste.opensuse.org/90980400
>
>
> Diffs
> -----
>
> modules/ECMGenerateHeaders.cmake PRE-CREATION
>
> Diff: http://git.reviewboard.kde.org/r/113406/diff/
>
>
> Testing
> -------
>
> Ported KParts and still everything works.
>
>
> File Attachments
> ----------------
>
> kparts changes example
> http://git.reviewboard.kde.org/media/uploaded/files/2013/10/29/a3557579-801b-4ee6-8e3d-5d487428759a__kf5-kparts-headers-test.patch
>
>
> Thanks,
>
> Aleix Pol Gonzalez
>
>
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