[Buildroot] [PATCH v2] package/libcgroup: allow to build cgroup-tools

[Bartosz Golaszewski <bgolaszewski@baylibre.com>]

Add a new config option that allows to build cgroup-tools - a set of
command-line utils for managing cgroups.

Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>
---
v2:
- prefix package option with package name
- use if/endif instead of depends on for libcgroup dependence

v1:
http://lists.busybox.net/pipermail/buildroot/2015-August/137816.html

 package/libcgroup/Config.in    | 9 +++++++++
 package/libcgroup/libcgroup.mk | 7 ++++++-
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/package/libcgroup/Config.in b/package/libcgroup/Config.in
index b7a84e0..7852567 100644
--- a/package/libcgroup/Config.in
+++ b/package/libcgroup/Config.in
@@ -9,5 +9,14 @@ config BR2_PACKAGE_LIBCGROUP
 
 	  http://libcg.sourceforge.net/
 
+if BR2_PACKAGE_LIBCGROUP
+
+config BR2_PACKAGE_LIBCGROUP_TOOLS
+	bool "build cgroup-tools"
+	help
+	  Include a set of command-line tools for managing cgroups.
+
+endif
+
 comment "libcgroup needs an (e)glibc toolchain w/ C++"
 	depends on !BR2_INSTALL_LIBSTDCPP || !BR2_TOOLCHAIN_USES_GLIBC
diff --git a/package/libcgroup/libcgroup.mk b/package/libcgroup/libcgroup.mk
index ace2744..a4c3084 100644
--- a/package/libcgroup/libcgroup.mk
+++ b/package/libcgroup/libcgroup.mk
@@ -20,10 +20,15 @@ LIBCGROUP_CONF_ENV = \
 	CFLAGS="$(TARGET_CFLAGS) -U_FILE_OFFSET_BITS"
 
 LIBCGROUP_CONF_OPTS = \
-	--disable-tools \
 	--disable-daemon \
 	--disable-initscript-install
 
+ifeq ($(BR2_PACKAGE_LIBCGROUP_TOOLS),y)
+LIBCGROUP_CONF_OPTS += --enable-tools
+else
+LIBCGROUP_CONF_OPTS += --disable-tools
+endif
+
 ifeq ($(BR2_PACKAGE_LINUX_PAM),y)
 LIBCGROUP_DEPENDENCIES += linux-pam
 LIBCGROUP_CONF_OPTS += --enable-pam
-- 
2.1.4