Ok, there is now a branch FeatureSummaryImprovements on the cmake stage:
http://cmake.org/gitweb?p=stage/cmake.git;a=shortlog;h=refs/heads/FeatureSummaryImprovements
It should have everything discussed here:
* every package can have multiple PURPOSEs
* every package has a dependency TYPE: RUNTIME < OPTIONAL < RECOMMENDED <
REQUIRED
* optionally, feature_summary() can abort if a REQUIRED package has not been
found
Usage is like this:
find_package(LibXml2)
# the following one ideally directly inside LibXml2:
set_package_properties(LibXml2 PROPERTIES
DESCRIPTION "XML processing library."
URL "http://xmlsoft.org/";)
# and in the using project
set_package_properties(LibXml2 PROPERTIES
PURPOSE "Required for exporting spreadsheets to odt format in kspread"
TYPE RECOMMENDED
)
# and in some other part of the project:
set_package_properties(LibXml2 PROPERTIES
PURPOSE "Required for importing html files in kword"
TYPE OPTIONAL )
# or all in one call:
find_package(DBus)
set_package_properties(DBus PROPERTIES
DESCRIPTION "A desktop IPC bus"
URL "http://dbus.freedesktop.org>"
TYPE RUNTIME
PURPOSE "Required to disable the screensaver via kpresenter")
The call to feature_summary() equivalent to what we have now is:
feature_summary(WHAT ALL FATAL_ON_MISSING_REQUIRED_PACKAGES)
Please give it a try, let me know about issues you find or whether it's just
nice.
Also, I'm happy about patches which improve the documentation or the output
format (or anything else).
Alex
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