[Buildroot] [PATCH] package/mtd: install libubi.a and libmtd.a to staging

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Romain Naour,

On Sat,  6 Sep 2014 23:59:01 +0200, Romain Naour wrote:
> Makefile's install rule deploy mtd's binaries but also static libraries
> (libubi.a libmtd.a).
> 
> Since mtd's binaries are manualy installed to target, static
> libraries are left in the build directory.
> 
> Others tools linked with -lubi or -lmtd fail to build.
> 
> Unconditionally build these libraries even if no mdt tool are enabled
> and manually install them to staging by setting MTD_INSTALL_STAGING_CMDS

I find the explanation somewhat convoluted here, what about simply:

Currently, the mtd package only installs the mtd utilities into the
target directory. However, the mtd-utils also provide two
static libraries (libmtd.a and libubi.a) that can be used by other
packages or tools.

Therefore, this commit extends the mtd package by adding the
installation to the staging directory of those two libraries.

> 
> Signed-off-by: Romain Naour <romain.naour@openwide.fr>
> ---
>  package/mtd/mtd.mk | 15 ++++++++++-----
>  1 file changed, 10 insertions(+), 5 deletions(-)
> 
> diff --git a/package/mtd/mtd.mk b/package/mtd/mtd.mk
> index 80928b6..a9154a5 100644
> --- a/package/mtd/mtd.mk
> +++ b/package/mtd/mtd.mk
> @@ -10,6 +10,8 @@ MTD_SITE = ftp://ftp.infradead.org/pub/mtd-utils
>  MTD_LICENSE = GPLv2
>  MTD_LICENSE_FILES = COPYING
>  
> +MTD_INSTALL_STAGING = YES
> +
>  ifeq ($(BR2_PACKAGE_MTD_MKFSJFFS2),y)
>  MTD_DEPENDENCIES = zlib lzo
>  endif
> @@ -36,6 +38,8 @@ endef
>  MKFS_JFFS2 = $(HOST_DIR)/usr/sbin/mkfs.jffs2
>  SUMTOOL = $(HOST_DIR)/usr/sbin/sumtool
>  
> +MTD_STAGING_y					+= lib/libmtd.a
> +MTD_STAGING_y					+= ubi-utils/libubi.a

Maybe the spaces are not necessary, and something like:

MTD_STAGING_y = lib/libmtd.a ubi-utils/libubi.a

would be sufficient.

>  MTD_TARGETS_$(BR2_PACKAGE_MTD_DOCFDISK)		+= docfdisk
>  MTD_TARGETS_$(BR2_PACKAGE_MTD_DOC_LOADBIOS)	+= doc_loadbios
>  MTD_TARGETS_$(BR2_PACKAGE_MTD_FLASHCP)		+= flashcp
> @@ -79,16 +83,17 @@ MTD_TARGETS_UBI_$(BR2_PACKAGE_MTD_UBIBLOCK)	+= ubiblock
>  MTD_TARGETS_y += $(addprefix ubi-utils/,$(MTD_TARGETS_UBI_y))
>  MTD_TARGETS_$(BR2_PACKAGE_MTD_MKFSUBIFS) += mkfs.ubifs/mkfs.ubifs
>  
> -# only call make if atleast a single tool is enabled
> -ifneq ($(MTD_TARGETS_y),)
> -
>  define MTD_BUILD_CMDS
>  	$(TARGET_CONFIGURE_OPTS) $(MAKE1) CROSS=$(TARGET_CROSS) \
>  		BUILDDIR=$(@D) WITHOUT_XATTR=1 WITHOUT_LARGEFILE=1 -C $(@D) \
> -		$(addprefix $(@D)/,$(MTD_TARGETS_y))
> +		$(addprefix $(@D)/,$(MTD_TARGETS_y)) \
> +		$(addprefix $(@D)/,$(MTD_STAGING_y))
>  endef
>  
> -endif
> +define MTD_INSTALL_STAGING_CMDS
> +     $(INSTALL) -D -m 0755 $(@D)/lib/libmtd.a $(STAGING_DIR)/usr/lib/libmtd.a
> +     $(INSTALL) -D -m 0755 $(@D)/ubi-utils/libubi.a $(STAGING_DIR)/usr/lib/libubi.a

Please indent with one tab, not spaces.

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com