Revert more custom patches from contrib/tools/m4

commit_hash:ad6c09ab078187b788f7aa46b038a2098cd0ea60

Author: georgthegreat

contrib/tools/m4/lib/c-strcasecmp.c

@@ -26,8 +26,8 @@
 int
 c_strcasecmp (const char *s1, const char *s2)
 {
-  const unsigned char *p1 = (const unsigned char *) s1;
-  const unsigned char *p2 = (const unsigned char *) s2;
+  register const unsigned char *p1 = (const unsigned char *) s1;
+  register const unsigned char *p2 = (const unsigned char *) s2;
   unsigned char c1, c2;
 
   if (p1 == p2)

contrib/tools/m4/lib/c-strncasecmp.c

@@ -26,8 +26,8 @@
 int
 c_strncasecmp (const char *s1, const char *s2, size_t n)
 {
-  const unsigned char *p1 = (const unsigned char *) s1;
-  const unsigned char *p2 = (const unsigned char *) s2;
+  register const unsigned char *p1 = (const unsigned char *) s1;
+  register const unsigned char *p2 = (const unsigned char *) s2;
   unsigned char c1, c2;
 
   if (p1 == p2 || n == 0)

contrib/tools/m4/lib/clean-temp.c

@@ -26,7 +26,7 @@
 #include <fcntl.h>
 #include <limits.h>
 #include <stdbool.h>
-#include "stdlib--.h"
+#include <stdlib.h>
 #include <string.h>
 #include <unistd.h>
 

contrib/tools/m4/lib/closein.c

@@ -21,7 +21,7 @@
 
 #include <errno.h>
 #include <stdbool.h>
-#include "stdio--.h"
+#include <stdio.h>
 #include <unistd.h>
 
 #include "gettext.h"

contrib/tools/m4/lib/malloca.h

@@ -18,7 +18,7 @@
 #ifndef _MALLOCA_H
 #define _MALLOCA_H
 
-#include "palloca.h"
+#include <alloca.h>
 #include <stddef.h>
 #include <stdlib.h>
 

contrib/tools/m4/lib/obstack.c

@@ -143,7 +143,7 @@ _obstack_begin (struct obstack *h,
                 void *(*chunkfun) (long),
                 void (*freefun) (void *))
 {
-  struct _obstack_chunk *chunk; /* points to new chunk */
+  register struct _obstack_chunk *chunk; /* points to new chunk */
 
   if (alignment == 0)
     alignment = DEFAULT_ALIGNMENT;
@@ -190,7 +190,7 @@ _obstack_begin_1 (struct obstack *h, int size, int alignment,
                   void (*freefun) (void *, void *),
                   void *arg)
 {
-  struct _obstack_chunk *chunk; /* points to new chunk */
+  register struct _obstack_chunk *chunk; /* points to new chunk */
 
   if (alignment == 0)
     alignment = DEFAULT_ALIGNMENT;
@@ -241,11 +241,11 @@ _obstack_begin_1 (struct obstack *h, int size, int alignment,
 void
 _obstack_newchunk (struct obstack *h, int length)
 {
-  struct _obstack_chunk *old_chunk = h->chunk;
-  struct _obstack_chunk *new_chunk;
-  long new_size;
-  long obj_size = h->next_free - h->object_base;
-  long i;
+  register struct _obstack_chunk *old_chunk = h->chunk;
+  register struct _obstack_chunk *new_chunk;
+  register long new_size;
+  register long obj_size = h->next_free - h->object_base;
+  register long i;
   long already;
   char *object_base;
 
@@ -318,8 +318,8 @@ int _obstack_allocated_p (struct obstack *h, void *obj);
 int
 _obstack_allocated_p (struct obstack *h, void *obj)
 {
-  struct _obstack_chunk *lp;   /* below addr of any objects in this chunk */
-  struct _obstack_chunk *plp;  /* point to previous chunk if any */
+  register struct _obstack_chunk *lp;   /* below addr of any objects in this chunk */
+  register struct _obstack_chunk *plp;  /* point to previous chunk if any */
 
   lp = (h)->chunk;
   /* We use >= rather than > since the object cannot be exactly at
@@ -341,8 +341,8 @@ _obstack_allocated_p (struct obstack *h, void *obj)
 void
 __obstack_free (struct obstack *h, void *obj)
 {
-  struct _obstack_chunk *lp;   /* below addr of any objects in this chunk */
-  struct _obstack_chunk *plp;  /* point to previous chunk if any */
+  register struct _obstack_chunk *lp;   /* below addr of any objects in this chunk */
+  register struct _obstack_chunk *plp;  /* point to previous chunk if any */
 
   lp = h->chunk;
   /* We use >= because there cannot be an object at the beginning of a chunk.
@@ -377,8 +377,8 @@ strong_alias (obstack_free, _obstack_free)
 int
 _obstack_memory_used (struct obstack *h)
 {
-  struct _obstack_chunk* lp;
-  int nbytes = 0;
+  register struct _obstack_chunk* lp;
+  register int nbytes = 0;
 
   for (lp = h->chunk; lp != 0; lp = lp->prev)
     {

contrib/tools/m4/lib/obstack.h

@@ -511,8 +511,4 @@ __extension__                                                           \
 }       /* C++ */
 #endif
 
-#if !defined(obstack_printf)
-int obstack_printf(struct obstack *obs, const char *format, ...);
-#endif
-
 #endif /* obstack.h */

contrib/tools/m4/lib/tempname.c

@@ -54,7 +54,7 @@
 #include <fcntl.h>
 #include <sys/time.h>
 #include <stdint.h>
-#include "unistd--.h"
+#include <unistd.h>
 
 #include <sys/stat.h>
 

contrib/tools/m4/lib/tmpdir.c

@@ -23,7 +23,7 @@
 #include "tmpdir.h"
 
 #include <stdbool.h>
-#include "stdlib--.h"
+#include <stdlib.h>
 #include <string.h>
 
 #include <errno.h>

contrib/tools/m4/src/m4.h

@@ -28,6 +28,7 @@
 #include <ctype.h>
 #include <errno.h>
 #include <limits.h>
+#include <stdbool.h>
 #include <stdint.h>
 #include <string.h>
 #include <sys/stat.h>