scripts: change metadata.pm and metadata.pl to not emit "default m if ALL" Kconfig instructions for hidden packages

SVN-Revision: 37397

SVN-Revision: 27344

add a new package metadata variable MDEPENDS for specifying local menuconfig dependencies that do not propagate to other packages

SVN-Revision: 26491

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build system: introduce a new feature called build variants. it allows building a package multiple times in one pass with different build dirs, based on the same build settings. replaces templating hacks like the one used in the hostapd package

SVN-Revision: 18357

add experimental support for a new menuconfig submenu "Package features". allows selection between multiple packages providing the same feature, which affects dependencies of other packages. will be used e.g. for choosing between DirectFB and X.org for libraries like GTK2

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move host build in packages into a separate namespace: package/<name>/host/<target> this allows dependencies between host and target packages, and saves unnecessary host builds for packages that contain both variants

SVN-Revision: 14905

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added source distribution to package dump, used by our SDK (include source distributions for offline usage) added bugfix for sub-targets added bugfix for help info (thanks to Thomas)

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scripts/feeds: properly handle virtual packages as well, use the first available provider by default

SVN-Revision: 12103

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SVN-Revision: 9060

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