[OE-core] [PATCH 1/1] xmlcatalog.bbclass: execute xmlcatalog only if it's available

[Chen Qi]

For build-sysroots.bb, the xmlcatalog would not be in its
staging directory. Causing the following error for eSDK.

ERROR: build-sysroots-1.0-r0 do_build_native_sysroot: Command '/PATH/TO/IMAGE/testsdkext/tmp/sysroots/x86_64/usr/bin/postinst-docbook-xml-dtd4-native-xmlcatalog' returned non-zero exit status 127.
ERROR: build-sysroots-1.0-r0 do_build_native_sysroot: Function failed: do_build_native_sysroot

The problem could be reproduced by the following steps.
1. Add in local.conf:
   IMAGE_INSTALL_append = " btrfs-tools"
   DISTRO_FEATURES_append = " api-documentation"
   INHERIT += "testsdk"
2. bitbake core-image-minimal -c populate_sdk_ext
3. bitbake core-image-minimal -c testsdkext

Signed-off-by: Chen Qi <Qi.Chen at windriver.com>
---
 meta/classes/xmlcatalog.bbclass | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/meta/classes/xmlcatalog.bbclass b/meta/classes/xmlcatalog.bbclass
index 075aef8..e805e7b 100644
--- a/meta/classes/xmlcatalog.bbclass
+++ b/meta/classes/xmlcatalog.bbclass
@@ -5,6 +5,8 @@ XMLCATALOGS ?= ""
 SYSROOT_PREPROCESS_FUNCS_append = " xmlcatalog_sstate_postinst"
 
 xmlcatalog_complete() {
+	# In case of eSDK, build-sysroot does not have xmlcatalog in its staging directory.
+	[ "`which xmlcatalog`" = "" ] && exit 0
 	ROOTCATALOG="${STAGING_ETCDIR_NATIVE}/xml/catalog"
 	if [ ! -f $ROOTCATALOG ]; then
 		mkdir --parents $(dirname $ROOTCATALOG)
-- 
1.9.1