From 442bc2afee6c5f731c7b3e76ccab7301703a45a7 Mon Sep 17 00:00:00 2001
From: Luca Boccassi <luca.boccassi@microsoft.com>
Date: Thu, 3 Dec 2020 16:17:43 +0000
Subject: [PATCH] meson: check that cxx variable is set before using it
In some cases it is not defined. Eg in a yocto build:
src/systemd/meson.build:61:15: ERROR: Unknown variable cxx.
---
src/systemd/meson.build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/src/systemd/meson.build b/src/systemd/meson.build
index c9c484b4114..3d328e5fd31 100644
--- a/src/systemd/meson.build
+++ b/src/systemd/meson.build
@@ -54,7 +54,7 @@ if cc.has_argument('-std=iso9899:2017')
opts += [['c', '-std=iso9899:2017']]
endif
-if add_languages('cpp', required : false)
+if cxx_cmd != ''
opts += [['c++'],
['c++', '-std=c++98'],
['c++', '-std=c++11']]