allow building everything without local(tree external) header files beeing

used for kernel or kit components


git-svn-id: file:///srv/svn/repos/haiku/trunk/current@1630 a95241bf-73f2-0310-859d-f6bbb57e9c96

headers/posix/malloc.h

@@ -4,8 +4,7 @@
 ** Distributed under the terms of the OpenBeOS License.
 */
 
-#include <sys/types.h>
-
+#include <unistd.h> 
 
 // ToDo: there are some BeOS specific things missing, most
 //	things are only rarely or almost never used, though.

headers/posix/sys/param.h

@@ -11,10 +11,16 @@
 
 #define NOFILE          OPEN_MAX
 
-#define MIN(a,b) (((a) < (b)) ? (a) : (b))
-#define MAX(a,b) (((a) > (b)) ? (a) : (b))
+#ifndef MIN
+  #define MIN(a,b) (((a) < (b)) ? (a) : (b))
+#endif
+#ifndef MAX
+  #define MAX(a,b) (((a) > (b)) ? (a) : (b))
+#endif
 
 /* maximum possible length of this machine's hostname */
-#define MAXHOSTNAMELEN 256
+#ifndef MAXHOSTNAMELEN
+  #define MAXHOSTNAMELEN 256
+#endif
 
 #endif	/* _SYS_PARAM_H */

headers/posix/sys/uio.h

@@ -3,7 +3,7 @@
 #ifndef _SYS_UIO_H
 #define _SYS_UIO_H
 
-#include <ktypes.h>
+#include <sys/types.h>
 
 typedef struct iovec {
 	void  *iov_base;