[Buildroot] [PATCH 1/5] legal-info: extract even no-redistribute packages

[Yann E. MORIN <yann.morin.1998@free.fr>]

From: "Yann E. MORIN" <yann.morin.1998@free.fr>

Currently, if a package is marked _REDISTRIBUTE = NO, then legal-info
will not try to extract it first.

If that package also declares some _LICENSE_FILES, legal-info fails
if it is the only action we're trying to run:

    $ cat defconfig
    BR2_INIT_NONE=y
    BR2_PACKAGE_LIBFSLCODEC=y
    $ make BR2_DEFCONFIG=$(pwd)/defconfig defconfig
    $ make libfslcodec-legal-info
    /bin/sh: /home/ymorin/dev/buildroot/O/legal-info/licenses.txt: No such file or directory
    make[1]: *** [libfslcodec-legal-info] Error 1

Fix this by always having legal-info extract the archives if one or
more _LICENSE_FILES are specified.

We do this for all types of packages: overriden, local or 'normal'
remote packages. Even though we do not save the sources for the
overriden or local packages, we need to save their licensing info,
so we need to extract them.

This implies that we now need to explicitly add PKG-source as a dependency
of legal-info for packages we want to save (ie. redistributable, non-local
and non-overriden packages).

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Cc: Luca Ceresoli <luca@lucaceresoli.net>
Cc: Thomas De Schampheleire <patrickdepinguin@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Cc: Fabio Porcedda <fabio.porcedda@gmail.com>

---
Changes v4 -> v5:
  - my usual s/pacakge/package/

Changes v3 -> v4:
  - legal-info needs to depend on PKG-source when it needs to save a
    package's tarball

Changes v2 -> v3:
  - don't include source URL of no-redistribute, or overriden, or local
    packages in the manifest

Changes v1 -> v2:
  - this is not fixing the autobuilders failure it was written to fix,
    so remove the references to such build failures  (Thomas P)
  - also extract overriden and local packages  (Fabio)
---
 package/pkg-generic.mk | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index ccd7f3b..eb3ec9f 100644
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -595,11 +595,18 @@ $(2)_MANIFEST_LICENSE_FILES = $$($(2)_LICENSE_FILES)
 endif
 $(2)_MANIFEST_LICENSE_FILES ?= not saved
 
+# If the package declares _LICENSE_FILES, we need to extract it,
+# for overriden, local or normal remote packages alike, whether
+# we want to redistribute it or not.
+ifneq ($$($(2)_LICENSE_FILES),)
+$(1)-legal-info: $(1)-extract
+endif
+
 ifeq ($$($(2)_REDISTRIBUTE),YES)
 ifneq ($$($(2)_SITE_METHOD),local)
 ifneq ($$($(2)_SITE_METHOD),override)
-# Packages that have a tarball need it downloaded and extracted beforehand
-$(1)-legal-info: $(1)-extract $(REDIST_SOURCES_DIR_$(call UPPERCASE,$(4)))
+# We need to download the package archive if we are to save it
+$(1)-legal-info: $(1)-source $(REDIST_SOURCES_DIR_$(call UPPERCASE,$(4)))
 $(2)_MANIFEST_TARBALL = $$($(2)_SOURCE)
 endif
 endif
-- 
1.8.3.2