Review Request 115765: Improve the ECMGenerateHeaders API with a variable for generated files

[Alex Merry]

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This is an automatically generated e-mail. To reply, visit:
https://git.reviewboard.kde.org/r/115765/
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Review request for Build System, Extra Cmake Modules, KDE Frameworks, and David Faure.


Repository: extra-cmake-modules


Description
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Improve the ECMGenerateHeaders API with a variable for generated files

ecm_generate_headers() now allows/forces the caller to collect the paths
of the generated headers, so that they can be passed to the install
command.  This avoids issues of unexpected files being in the CamelCase
includes directory, both from previous builds and because of
case-insensitive file systems.

MODULE_NAME is removed, as it is no longer desirable or necessary.
Instead, the headers are placed directly in the output directory
(usually CMAKE_CURRENT_BUILD_DIR).

Overall, this makes ecm_generate_headers() behave much more like other
file generation macros (like the Qt ones).

The old syntax is still supported for now, to make the porting effort
easier.


Diffs
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  modules/ECMGenerateHeaders.cmake e98a22e91151d23d7c798ff22a33097ec2a59d10 
  tests/CMakeLists.txt 4347a92d3062381253dc0f6bb7004ce6e4a5cd23 
  tests/ECMGenerateHeadersTest/CMakeLists.txt PRE-CREATION 
  tests/ECMGenerateHeadersTest/run_test.cmake.config PRE-CREATION 

Diff: https://git.reviewboard.kde.org/r/115765/diff/


Testing
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It has unit tests!  They pass!

Also, I converted KCoreAddons and KParts, and it works fine with those (see https://git.reviewboard.kde.org/r/115767/ and https://git.reviewboard.kde.org/r/115766/).  And the compatibility mode means it works fine with the existing modules (I ran `kdesrc-build attica` and `kdesrc-build frameworks` after removing $PREFIX/include/KF5).


Thanks,

Alex Merry

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