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12345678910111213141516171819gcc-7 newly detects this class of bugs.In this particular case it's clear that the inention wasto detect if the string is non-NULL *and* non-empty.
diff --git a/unique/uniqueapp.c b/unique/uniqueapp.cindex b40a86c..66a7226 100644--- a/unique/uniqueapp.c+++ b/unique/uniqueapp.c@@ -176,7 +176,7 @@ set_startup_id (UniqueBackend *backend, { gchar *id; - if (startup_id && startup_id != '\0')+ if (startup_id && *startup_id != '\0') id = g_strdup (startup_id); else {