Update from gnulib.

1 files changed, 34 insertions, 28 deletions

diff --git a/lib/obstack.h b/lib/obstack.h
index 6f8e35f35..1460f5d8d 100644
--- a/lib/obstack.h
+++ b/lib/obstack.h
@@ -248,33 +248,33 @@ extern int obstack_exit_failure;
 #define obstack_alignment_mask(h) ((h)->alignment_mask)
 
 /* To prevent prototype warnings provide complete argument list.  */
-# define obstack_init(h)					\
+#define obstack_init(h)						\
   _obstack_begin ((h), 0, 0,					\
 		  (void *(*) (long)) obstack_chunk_alloc,	\
 		  (void (*) (void *)) obstack_chunk_free)
 
-# define obstack_begin(h, size)					\
+#define obstack_begin(h, size)					\
   _obstack_begin ((h), (size), 0,				\
 		  (void *(*) (long)) obstack_chunk_alloc,	\
 		  (void (*) (void *)) obstack_chunk_free)
 
-# define obstack_specify_allocation(h, size, alignment, chunkfun, freefun) \
+#define obstack_specify_allocation(h, size, alignment, chunkfun, freefun)  \
   _obstack_begin ((h), (size), (alignment),				   \
 		  (void *(*) (long)) (chunkfun),			   \
 		  (void (*) (void *)) (freefun))
 
-# define obstack_specify_allocation_with_arg(h, size, alignment, chunkfun, freefun, arg) \
+#define obstack_specify_allocation_with_arg(h, size, alignment, chunkfun, freefun, arg) \
   _obstack_begin_1 ((h), (size), (alignment),				\
 		    (void *(*) (void *, long)) (chunkfun),		\
 		    (void (*) (void *, void *)) (freefun), (arg))
 
-# define obstack_chunkfun(h, newchunkfun) \
+#define obstack_chunkfun(h, newchunkfun) \
   ((h) -> chunkfun = (struct _obstack_chunk *(*)(void *, long)) (newchunkfun))
 
-# define obstack_freefun(h, newfreefun) \
+#define obstack_freefun(h, newfreefun) \
   ((h) -> freefun = (void (*)(void *, struct _obstack_chunk *)) (newfreefun))
 
-#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = achar)
+#define obstack_1grow_fast(h,achar) (*((h)->next_free)++ = (achar))
 
 #define obstack_blank_fast(h,n) ((h)->next_free += (n))
 
@@ -322,7 +322,7 @@ __extension__								\
    int __len = (length);						\
    if (__o->next_free + __len > __o->chunk_limit)			\
      _obstack_newchunk (__o, __len);					\
-   memcpy (__o->next_free, (where), __len);				\
+   memcpy (__o->next_free, where, __len);				\
    __o->next_free += __len;						\
    (void) 0; })
 
@@ -332,7 +332,7 @@ __extension__								\
    int __len = (length);						\
    if (__o->next_free + __len + 1 > __o->chunk_limit)			\
      _obstack_newchunk (__o, __len + 1);				\
-   memcpy (__o->next_free, (where), __len);				\
+   memcpy (__o->next_free, where, __len);				\
    __o->next_free += __len;						\
    *(__o->next_free)++ = 0;						\
    (void) 0; })
@@ -342,7 +342,7 @@ __extension__								\
 ({ struct obstack *__o = (OBSTACK);					\
    if (__o->next_free + 1 > __o->chunk_limit)				\
      _obstack_newchunk (__o, 1);					\
-   *(__o->next_free)++ = (datum);					\
+   obstack_1grow_fast (__o, datum);					\
    (void) 0; })
 
 /* These assume that the obstack alignment is good enough for pointers
@@ -354,22 +354,28 @@ __extension__								\
 ({ struct obstack *__o = (OBSTACK);					\
    if (__o->next_free + sizeof (void *) > __o->chunk_limit)		\
      _obstack_newchunk (__o, sizeof (void *));				\
-   *((void **)__o->next_free)++ = (datum);				\
-   (void) 0; })
+   obstack_ptr_grow_fast (__o, datum); })				\
 
 # define obstack_int_grow(OBSTACK,datum)				\
 __extension__								\
 ({ struct obstack *__o = (OBSTACK);					\
    if (__o->next_free + sizeof (int) > __o->chunk_limit)		\
      _obstack_newchunk (__o, sizeof (int));				\
-   *((int *)__o->next_free)++ = (datum);				\
-   (void) 0; })
+   obstack_int_grow_fast (__o, datum); })
 
-# define obstack_ptr_grow_fast(h,aptr)					\
-  (*((void **) (h)->next_free)++ = (aptr))
+# define obstack_ptr_grow_fast(OBSTACK,aptr)				\
+__extension__								\
+({ struct obstack *__o1 = (OBSTACK);					\
+   *(const void **) __o1->next_free = (aptr);				\
+   __o1->next_free += sizeof (const void *);				\
+   (void) 0; })
 
-# define obstack_int_grow_fast(h,aint)					\
-  (*((int *) (h)->next_free)++ = (aint))
+# define obstack_int_grow_fast(OBSTACK,aint)				\
+__extension__								\
+({ struct obstack *__o1 = (OBSTACK);					\
+   *(int *) __o1->next_free = (aint);					\
+   __o1->next_free += sizeof (int);					\
+   (void) 0; })
 
 # define obstack_blank(OBSTACK,length)					\
 __extension__								\
@@ -377,7 +383,7 @@ __extension__								\
    int __len = (length);						\
    if (__o->chunk_limit - __o->next_free < __len)			\
      _obstack_newchunk (__o, __len);					\
-   __o->next_free += __len;						\
+   obstack_blank_fast (__o, __len);					\
    (void) 0; })
 
 # define obstack_alloc(OBSTACK,length)					\
@@ -450,43 +456,43 @@ __extension__								\
 ( (h)->temp = (length),							\
   (((h)->next_free + (h)->temp > (h)->chunk_limit)			\
    ? (_obstack_newchunk ((h), (h)->temp), 0) : 0),			\
-  memcpy ((h)->next_free, (where), (h)->temp),				\
+  memcpy ((h)->next_free, where, (h)->temp),				\
   (h)->next_free += (h)->temp)
 
 # define obstack_grow0(h,where,length)					\
 ( (h)->temp = (length),							\
   (((h)->next_free + (h)->temp + 1 > (h)->chunk_limit)			\
    ? (_obstack_newchunk ((h), (h)->temp + 1), 0) : 0),			\
-  memcpy ((h)->next_free, (where), (h)->temp),				\
+  memcpy ((h)->next_free, where, (h)->temp),				\
   (h)->next_free += (h)->temp,						\
   *((h)->next_free)++ = 0)
 
 # define obstack_1grow(h,datum)						\
 ( (((h)->next_free + 1 > (h)->chunk_limit)				\
    ? (_obstack_newchunk ((h), 1), 0) : 0),				\
-  (*((h)->next_free)++ = (datum)))
+  obstack_1grow_fast (h, datum))
 
 # define obstack_ptr_grow(h,datum)					\
 ( (((h)->next_free + sizeof (char *) > (h)->chunk_limit)		\
    ? (_obstack_newchunk ((h), sizeof (char *)), 0) : 0),		\
-  (*((const char **) (((h)->next_free+=sizeof(char *))-sizeof(char *))) = (datum)))
+  obstack_ptr_grow_fast (h, datum))
 
 # define obstack_int_grow(h,datum)					\
 ( (((h)->next_free + sizeof (int) > (h)->chunk_limit)			\
    ? (_obstack_newchunk ((h), sizeof (int)), 0) : 0),			\
-  (*((int *) (((h)->next_free+=sizeof(int))-sizeof(int))) = (datum)))
+  obstack_int_grow_fast (h, datum))
 
 # define obstack_ptr_grow_fast(h,aptr)					\
-  (*((const char **) (h)->next_free)++ = (aptr))
+  (((const void **) ((h)->next_free += sizeof (void *)))[-1] = (aptr))
 
 # define obstack_int_grow_fast(h,aint)					\
-  (*((int *) (h)->next_free)++ = (aint))
+  (((int *) ((h)->next_free += sizeof (int)))[-1] = (aptr))
 
 # define obstack_blank(h,length)					\
 ( (h)->temp = (length),							\
   (((h)->chunk_limit - (h)->next_free < (h)->temp)			\
    ? (_obstack_newchunk ((h), (h)->temp), 0) : 0),			\
-  ((h)->next_free += (h)->temp))
+  obstack_blank_fast (h, (h)->temp))
 
 # define obstack_alloc(h,length)					\
  (obstack_blank ((h), (length)), obstack_finish ((h)))
@@ -511,7 +517,7 @@ __extension__								\
   (h)->object_base = (h)->next_free,					\
   (void *) __INT_TO_PTR ((h)->temp))
 
-#  define obstack_free(h,obj)						\
+# define obstack_free(h,obj)						\
 ( (h)->temp = (char *) (obj) - (char *) (h)->chunk,			\
   (((h)->temp > 0 && (h)->temp < (h)->chunk_limit - (char *) (h)->chunk)\
    ? (int) ((h)->next_free = (h)->object_base				\