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authorGravatar Thomas De Schampheleire <patrickdepinguin@gmail.com>2013-11-12 09:47:56 +0100
committerGravatar Peter Korsgaard <peter@korsgaard.com>2013-11-12 23:20:37 +0100
commit003d38da3a716b0a19e980fb69a6cd55b353f4f3 (patch)
treec1b8fe950358a4016041dee875cc9ad745dadf1c /Makefile
parent7a7ec2dd3758a9832471db2ccf0f8bf7b08ad6dc (diff)
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legal info: fix saving of host package licenses
Due to some tricky make behavior, the license texts of host packages that did not provide an explicit HOST_FOO_LICENSE_FILES definition was not saved. The problem is that it is not straightforward to use a variable defined/updated inside an evaluated block as input to a foreach statement. If you try to use $(FOO) then only the original value of FOO is used for foreach, any update inside the block is ignored. However, if you use $$(FOO), the entire contents of FOO (typically a list of items) is passed as one item to foreach, thus causing just one iteration instead of several. >From Arnout Vandecapelle's explanation: Any variable referenced with a single $ inside the inner-generic-package macro is expanded before the resulting contents are eval'ed. Therefore, it is not possible to refer to variables defined by the inner-generic-package macro from within a single-$ function call. To fix the problem, one should defer the evaluation of the entire block using double dollar signs. Additionally, a few empty lines have been added to the legal-info-foo block for clarity. Signed-off-by: Thomas De Schampheleire <thomas.de.schampheleire@gmail.com> Acked-by: Luca Ceresoli <luca@lucaceresoli.net> Tested-by: Luca Ceresoli <luca@lucaceresoli.net> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
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