[OE-core] [sumo][PATCH] default-versions.inc: use weak assignments to allow overwrite

[Stefan Stanacar]

default-versions.inc is included by defaultsetup.conf which in bitbake.conf
is included after local/machine/distro.conf.
If these are hard assignments distros can's overwrite them.

Signed-off-by: Stefan Stanacar <sstncr at gmail.com>
---
 meta/conf/distro/include/default-versions.inc | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/meta/conf/distro/include/default-versions.inc b/meta/conf/distro/include/default-versions.inc
index 868073843a..3d88e8f656 100644
--- a/meta/conf/distro/include/default-versions.inc
+++ b/meta/conf/distro/include/default-versions.inc
@@ -2,6 +2,6 @@
 # Default preferred versions
 #
 
-PREFERRED_VERSION_openssl = "1.0.%"
-PREFERRED_VERSION_openssl-native = "1.0.%"
-PREFERRED_VERSION_nativesdk-openssl = "1.0.%"
+PREFERRED_VERSION_openssl ?= "1.0.%"
+PREFERRED_VERSION_openssl-native ?= "1.0.%"
+PREFERRED_VERSION_nativesdk-openssl ?= "1.0.%"
-- 
2.17.1