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package/pkg-generic: add check that target variant is defined before host variant

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Update the documentation accordingly.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
[yann.morin.1998@free.fr: slight rephrasing in error message, update manual]
Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
This commit is contained in:
Thomas Petazzoni 2018-04-29 14:15:22 +02:00 committed by Thomas Petazzoni
parent 2ae7b21e0b
commit 38860fb21f
2 changed files with 10 additions and 2 deletions
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6
docs/manual/adding-packages-generic.txt
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@ -179,8 +179,10 @@ some tools to be installed on the host. If the package name is
variables of other packages, if they depend on +libfoo+ or variables of other packages, if they depend on +libfoo+ or
+host-libfoo+. +host-libfoo+.
The call to the +generic-package+ and/or +host-generic-package+ macro *must* be The call to the +generic-package+ and/or +host-generic-package+ macro
at the end of the +.mk+ file, after all variable definitions. *must* be at the end of the +.mk+ file, after all variable definitions.
The call to +host-generic-package+ *must* be after the call to
+generic-package+, if any.
For the target package, the +generic-package+ uses the variables defined by For the target package, the +generic-package+ uses the variables defined by
the .mk file and prefixed by the uppercased package name: the .mk file and prefixed by the uppercased package name:

6
package/pkg-generic.mk
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@ -646,6 +646,12 @@ $(2)_POST_LEGAL_INFO_HOOKS ?=
$(2)_TARGET_FINALIZE_HOOKS ?= $(2)_TARGET_FINALIZE_HOOKS ?=
$(2)_ROOTFS_PRE_CMD_HOOKS ?= $(2)_ROOTFS_PRE_CMD_HOOKS ?=
ifeq ($$($(2)_TYPE),target)
ifneq ($$(HOST_$(2)_KCONFIG_VAR),)
$$(error "Package $(1) defines host variant before target variant!")
endif
endif
# human-friendly targets and target sequencing # human-friendly targets and target sequencing
$(1): $(1)-install $(1): $(1)-install