From 98d0f8f89e8db203226c657e8400a250182ac274 Mon Sep 17 00:00:00 2001
From: Babak Farrokhi <babak@farrokhi.net>
Date: Tue, 27 Oct 2015 11:01:43 +0330
Subject: [PATCH] - Fix linux build

---
 pidutil.c | 8 +++++++-
 pidutil.h | 5 +++++
 2 files changed, 12 insertions(+), 1 deletion(-)

diff --git a/pidutil.c b/pidutil.c
index d6eee11..70f112d 100644
--- a/pidutil.c
+++ b/pidutil.c
@@ -9,6 +9,12 @@ struct pidfh {
 
 static int _pidfile_remove(struct pidfh *pfh, int freeit);
 
+#ifdef __linux__
+#define PROGNAME program_invocation_short_name
+#else
+#define PROGNAME getprogname()
+#endif /* __linux__ */
+
 static int
 pidfile_verify(const struct pidfh *pfh)
 {
@@ -133,7 +139,7 @@ pidfile_open(const char *path, mode_t mode, pid_t *pidptr)
 		return NULL;
 
 	if (path == NULL)
-		len = snprintf(pfh->pf_path, sizeof(pfh->pf_path), "/var/run/%s.pid", getprogname());
+		len = snprintf(pfh->pf_path, sizeof(pfh->pf_path), "/var/run/%s.pid", PROGNAME);
 	else
 		len = snprintf(pfh->pf_path, sizeof(pfh->pf_path), "%s", path);
 
diff --git a/pidutil.h b/pidutil.h
index a8d3f82..d1975d7 100644
--- a/pidutil.h
+++ b/pidutil.h
@@ -1,6 +1,10 @@
 #ifndef _PIDUTIL_H
 #define _PIDUTIL_H
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+
 #include <sys/file.h>
 #include <sys/param.h>
 #include <sys/stat.h>
@@ -16,6 +20,7 @@
 #include <fcntl.h>
 #include <time.h>
 #include <string.h>
+#include <errno.h>
 
 struct pidfh;