New upstream version 3.2.1upstream/3.2.1

1 files changed, 12 insertions, 9 deletions

diff --git a/linux/SystemdMeter.c b/linux/SystemdMeter.c
index 567cfc7..53ae2d2 100644
--- a/linux/SystemdMeter.c
+++ b/linux/SystemdMeter.c
@@ -219,15 +219,18 @@ static void updateViaExec(void) {
          exit(1);
       dup2(fdnull, STDERR_FILENO);
       close(fdnull);
-      execlp("systemctl",
-             "systemctl",
-             "show",
-             "--property=SystemState",
-             "--property=NFailedUnits",
-             "--property=NNames",
-             "--property=NJobs",
-             "--property=NInstalledJobs",
-             NULL);
+      // Use of NULL in variadic functions must have a pointer cast.
+      // The NULL constant is not required by standard to have a pointer type.
+      execlp(
+         "systemctl",
+         "systemctl",
+         "show",
+         "--property=SystemState",
+         "--property=NFailedUnits",
+         "--property=NNames",
+         "--property=NJobs",
+         "--property=NInstalledJobs",
+         (char *)NULL);
       exit(127);
    }
    close(fdpair[1]);