* Added BSD specific errno.h for EDOOFUS (yeah, I know, great error code...)

* Added sigmask() macro.
* Fixed libutil.h I broke yesterday: it's thought to add functions only if
  you've included some other headers before; added the correct header guard
  we're using for our sys/param.h.
* Added pidfile.c to the build.
* Fixed warning in realhostname.c, and pidfile.c.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23840 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/compatibility/bsd/errno.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright 2008, Haiku, Inc. All Rights Reserved.
+ * Distributed under the terms of the MIT License.
+ */
+#ifndef _BSD_ERRNO_H_
+#define _BSD_ERRNO_H_
+
+
+#include_next <errno.h>
+
+
+#define EDOOFUS	EINVAL
+
+#endif	/* _BSD_ERRNO_H_ */

headers/compatibility/bsd/libutil.h

@@ -40,7 +40,6 @@
 #define	_LIBUTIL_H_
 
 #include <stdint.h>
-#include <sys/param.h>
 #include <sys/types.h>
 
 #define PROPERTY_MAX_NAME	64
@@ -53,6 +52,7 @@ typedef struct _property {
 	char *value;
 } *properties;
 
+#ifdef _SYS_PARAM_H
 /* for pidfile.c */
 struct pidfh {
 	int	pf_fd;
@@ -60,6 +60,7 @@ struct pidfh {
 	dev_t	pf_dev;
 	ino_t	pf_ino;
 };
+#endif
 
 /* Avoid pulling in all the include files for no need */
 struct termios;
@@ -119,10 +120,12 @@ const char *pw_tempname(void);
 int	pw_tmp(int _mfd);
 #endif
 
+#ifdef _SYS_PARAM_H
 struct pidfh *pidfile_open(const char *path, mode_t mode, pid_t *pidptr);
 int pidfile_write(struct pidfh *pfh);
 int pidfile_close(struct pidfh *pfh);
 int pidfile_remove(struct pidfh *pfh);
+#endif
 
 __END_DECLS
 

headers/compatibility/bsd/signal.h

@@ -1,5 +1,5 @@
 /*
- * Copyright 2006, Haiku, Inc. All Rights Reserved.
+ * Copyright 2006-2008, Haiku, Inc. All Rights Reserved.
  * Distributed under the terms of the MIT License.
  */
 #ifndef _BSD_SIGNAL_H_
@@ -9,6 +9,9 @@
 #include_next <signal.h>
 
 
+#define	sigmask(sig) (1 << ((sig) - 1))
+
+
 #ifdef __cplusplus
 extern "C" {
 #endif