[OE-core] [PATCH] rootfs.py: Check for LDCONFIGDEPEND being empty string

[Khem Raj]

We override LDCONFIGDEPEND to be empty string for uclibc
however the current check is for it being None as a result
the function is still executed but ldconfig-native is not
built as dependency for rootfs when building with uclibc

Fixes errors like below

File:
'/home/kraj/work/angstrom-repo/sources/openembedded-core/meta/lib/oe/rootfs.py',
lineno: 191, function: _run_ldconfig
     0187:    def _run_ldconfig(self):
     0188:        if self.d.getVar('LDCONFIGDEPEND', True) is not None:
     0189:            bb.note("Executing: ldconfig -r" +
self.image_rootfs + "-c new -v")
     0190:            self._exec_shell_cmd(['ldconfig', '-r',
self.image_rootfs, '-c',
 *** 0191:                                  'new', '-v'])

Signed-off-by: Khem Raj <raj.khem at gmail.com>
---
 meta/lib/oe/rootfs.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/lib/oe/rootfs.py b/meta/lib/oe/rootfs.py
index 6114f56..285c769 100644
--- a/meta/lib/oe/rootfs.py
+++ b/meta/lib/oe/rootfs.py
@@ -185,7 +185,7 @@ class Rootfs(object):
                         self._handle_intercept_failure(registered_pkgs)
 
     def _run_ldconfig(self):
-        if self.d.getVar('LDCONFIGDEPEND', True) is not None:
+        if self.d.getVar('LDCONFIGDEPEND', True) != "":
             bb.note("Executing: ldconfig -r" + self.image_rootfs + "-c new -v")
             self._exec_shell_cmd(['ldconfig', '-r', self.image_rootfs, '-c',
                                   'new', '-v'])
-- 
1.8.5.5