[OE-core] [PATCH 3/3] libsm: remove dependency on e2fsprogs

[Chen Qi]

This patch is to solve the following circular dependency problem.

     systemd -> dbus -> libsm -> e2fsprogs -> util-linux -> systemd

libsm doesn't have any dependency on e2fsprogs. It might be some dependency
on util-linux's libuuid, controlled by configure options. So e2fsprogs should
be removed from the DEPENDS variable.

Ideally, we should add a PACKAGECONFIG for 'libuuid' for libsm. However, if
libsm depends on util-linux, we would have the circular dependency described
above. That's why this patch explicitly set '--without-libuuid' in EXTRA_OECONF.
libsm would still be working well because it would fall back to an internal
algorithm to do the uuid stuff.

Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
---
 meta/recipes-graphics/xorg-lib/libsm_1.2.2.bb | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/meta/recipes-graphics/xorg-lib/libsm_1.2.2.bb b/meta/recipes-graphics/xorg-lib/libsm_1.2.2.bb
index 180acfa..1925136 100644
--- a/meta/recipes-graphics/xorg-lib/libsm_1.2.2.bb
+++ b/meta/recipes-graphics/xorg-lib/libsm_1.2.2.bb
@@ -11,7 +11,12 @@ require xorg-lib-common.inc
 LICENSE = "MIT-style"
 LIC_FILES_CHKSUM = "file://COPYING;md5=c0fb37f44e02bdbde80546024400728d"
 
-DEPENDS += "libice xproto xtrans e2fsprogs"
+DEPENDS += "libice xproto xtrans"
+
+# libSM can work without libuuid, we explicitly disable it to break the following circular dependency
+# when DISTRO_FEATURES contains 'systemd' and 'x11'.
+# systemd -> dbus -> libsm -> util-linux -> systemd
+EXTRA_OECONF += "--without-libuuid"
 
 PE = "1"
 
-- 
1.9.1