Merge from emacs-23

[gnu-emacs] / src / mem-limits.h

diff --git a/src/mem-limits.h b/src/mem-limits.h
index 55ac556f9451c40bdd35a5e588d417a6803c2ac7..a5a0952998f1b5f03aeecdff28493c66f3b404c8 100644 (file)
--- a/src/mem-limits.h
+++ b/src/mem-limits.h
@@ -25,17 +25,6 @@ extern int etext;
 /* Some systems need this before <sys/resource.h>.  */
 #include <sys/types.h>
 
-#ifdef _LIBC
-
-#include <sys/resource.h>
-#define BSD4_2                 /* Tell code below to use getrlimit.  */
-
-/* Old Linux startup code won't define __data_start.  */
-extern int etext, __data_start; weak_extern (__data_start)
-#define start_of_data()        (&__data_start ?: &etext)
-
-#else /* not _LIBC */
-
 #ifdef HAVE_SYS_RESOURCE_H
 # include <sys/time.h>
 # include <sys/resource.h>
@@ -45,37 +34,9 @@ extern int etext, __data_start; weak_extern (__data_start)
 # endif
 #endif
 
-#ifdef CYGWIN
-#define BSD4_2
-#endif
-
-#ifndef BSD4_2
-#ifndef USG
-#ifndef MSDOS
-#ifndef WINDOWSNT
-#include <sys/vlimit.h>
-#endif /* not WINDOWSNT */
-#endif /* not MSDOS */
-#endif /* not USG */
-#else /* if BSD4_2 */
-#include <sys/time.h>
-#include <sys/resource.h>
-#endif /* BSD4_2 */
-
-#ifdef emacs
-/* The important properties of this type are that 1) it's a pointer, and
-   2) arithmetic on it should work as if the size of the object pointed
-   to has a size of 1.  */
-typedef POINTER_TYPE *POINTER;
-
 typedef unsigned long SIZE;
 
-#ifdef NULL
-#undef NULL
-#endif
-#define NULL ((POINTER) 0)
-
-extern POINTER start_of_data ();
+extern char *start_of_data (void);
 #if defined USE_LSB_TAG
 #define EXCEEDS_LISP_PTR(ptr) 0
 #elif defined DATA_SEG_BITS
@@ -85,26 +46,5 @@ extern POINTER start_of_data ();
 #define EXCEEDS_LISP_PTR(ptr) ((EMACS_UINT) (ptr) >> VALBITS)
 #endif
 
-#ifdef DATA_START
-#define start_of_data() ((char *)DATA_START)
-#endif
-
-#ifdef BSD_SYSTEM
-#ifndef DATA_SEG_BITS
-#ifndef DATA_START
-extern char etext;
-#define start_of_data() &etext
-#endif
-#endif
-#endif
-
-#else  /* not emacs */
-extern char etext;
-#define start_of_data() &etext
-#endif /* not emacs */
-
-#endif /* not _LIBC */
-
-
 /* arch-tag: fe39244e-e54f-4208-b7aa-02556f7841c5
    (do not change this comment) */