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-rw-r--r--src/process.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/process.c b/src/process.c
index d25c909b..aa614d36 100644
--- a/src/process.c
+++ b/src/process.c
@@ -248,7 +248,13 @@ process_start (Process *process, gboolean block)
environ = NULL;
#endif
for (guint i = 0; i < env_length; i++)
- setenv (env_keys[i], env_values[i], TRUE);
+ {
+ const gchar *value = env_values[i];
+ if (value != NULL)
+ setenv (env_keys[i], value, TRUE);
+ else
+ unsetenv (env_keys[i]);
+ }
/* Reset SIGPIPE handler so the child has default behaviour (we disabled it at LightDM start) */
signal (SIGPIPE, SIG_DFL);