From ed8b768c4a68042eed0c21c8305640841b22f006 Mon Sep 17 00:00:00 2001
From: William Hubbs <w.d.hubbs@gmail.com>
Date: Fri, 21 Dec 2018 12:06:15 -0600
Subject: [PATCH] fix compiler warnings

---
 src/librc/librc-misc.c    | 2 --
 src/rc/broadcast.c        | 2 +-
 src/rc/openrc-shutdown.c  | 4 +---
 src/rc/supervise-daemon.c | 3 +--
 4 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/librc/librc-misc.c b/src/librc/librc-misc.c
index 178768c5..4ff7f439 100644
--- a/src/librc/librc-misc.c
+++ b/src/librc/librc-misc.c
@@ -277,7 +277,6 @@ static RC_STRINGLIST *rc_config_kcl(RC_STRINGLIST *config)
 	char *tmp = NULL;
 	char *value = NULL;
 	size_t varlen = 0;
-	size_t len = 0;
 
 	overrides = rc_stringlist_new();
 
@@ -295,7 +294,6 @@ static RC_STRINGLIST *rc_config_kcl(RC_STRINGLIST *config)
 		}
 
 		if (value != NULL) {
-			len = varlen + strlen(value) + 2;
 			xasprintf(&tmp, "%s=%s", override->value, value);
 		}
 
diff --git a/src/rc/broadcast.c b/src/rc/broadcast.c
index 47e4ff6b..1a29c796 100644
--- a/src/rc/broadcast.c
+++ b/src/rc/broadcast.c
@@ -133,7 +133,7 @@ void broadcast(char *text)
 	char *p;
 	char *line = NULL;
 	struct sigaction sa;
-	int fd;
+	volatile int fd;
 	FILE *tp;
 	int	flags;
 	char *term = NULL;
diff --git a/src/rc/openrc-shutdown.c b/src/rc/openrc-shutdown.c
index e39f1316..2c8863bb 100644
--- a/src/rc/openrc-shutdown.c
+++ b/src/rc/openrc-shutdown.c
@@ -160,9 +160,7 @@ static void sleep_no_interrupt(int seconds)
 
 static void stop_shutdown(int sig)
 {
-	/* use the sig parameter so the compiler will not complain */
-	if (sig == SIGINT)
-		;
+	(void) sig;
 	unlink(nologin_file);
 	unlink(shutdown_pid);
 einfo("Shutdown canceled");
diff --git a/src/rc/supervise-daemon.c b/src/rc/supervise-daemon.c
index 8fd41006..bf958607 100644
--- a/src/rc/supervise-daemon.c
+++ b/src/rc/supervise-daemon.c
@@ -267,7 +267,7 @@ static char *make_cmdline(char **argv)
 	return cmdline;
 }
 
-static pid_t exec_command(char *cmd)
+static pid_t exec_command(const char *cmd)
 {
 	char *file;
 	pid_t pid = -1;
@@ -510,7 +510,6 @@ static void supervisor(char *exec, char **argv)
 	int healthcheck_respawn;
 	int i;
 	int nkilled;
-	int ready;
 	int sig_send;
 	pid_t health_pid;
 	pid_t wait_pid;