package/pkg-generic: depend on host-{xz, lzip} only for fitting archives

Currently, host-xz and host-lzip are built as soon as the
corresponding tools are not provided by the system, independently of
whether they are really needed by the Buildroot configuration. This is
particularly annoying for host-lzip, which is only needed for very few
packages.

This commit modifies the generic package infrastructure to only add
host-lzip and host-xz as dependencies when really needed.

Signed-off-by: Norbert Lange <nolange79@gmail.com>
[Thomas:
 - improve commit log
 - as suggested by Yann E. Morin, make the lzip case similar to the xz
   case]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

diff --git a/package/pkg-generic.mk b/package/pkg-generic.mk
index dd3e20ca574cae7fb90d67da1b172d4883fe2f91..c86338b856d11a355979bf5dfd3f1225df1a0101 100644 (file)
--- a/package/pkg-generic.mk
+++ b/package/pkg-generic.mk
@@ -615,12 +615,16 @@ $(2)_EXTRACT_DEPENDENCIES += $$(BR2_TAR_HOST_DEPENDENCY)
 endif
 
 ifeq ($$(filter host-tar host-skeleton host-xz host-lzip host-fakedate,$(1)),)
+ifneq ($$(filter .xz .lzma,$$(suffix $$($(2)_SOURCE))),)
 $(2)_EXTRACT_DEPENDENCIES += $$(BR2_XZCAT_HOST_DEPENDENCY)
 endif
+endif
 
 ifeq ($$(filter host-tar host-skeleton host-xz host-lzip host-fakedate,$(1)),)
+ifneq ($$(filter .lz,$$(suffix $$($(2)_SOURCE))),)
 $(2)_EXTRACT_DEPENDENCIES += $$(BR2_LZIP_HOST_DEPENDENCY)
 endif
+endif
 
 ifeq ($$(BR2_CCACHE),y)
 ifeq ($$(filter host-tar host-skeleton host-xz host-lzip host-fakedate host-ccache,$(1)),)