diff --git a/include/ChangeLog b/include/ChangeLog
index b2468c99d2c32b05e56b039988eed890386704dd..41af292ebbf388a5982f2b6a23b944d28079a4ac 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,11 @@
+1999-09-01  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
+
+	* obstack.h (obstack_grow, obstack_grow0): Move (char*) casts
+	in calls to `_obstack_memcpy' from here ...
+
+	(_obstack_memcpy): ... to here, except in the __STDC__ case which
+	doesn't need it.
+
 1999-08-30  Kaveh R. Ghazi  <ghazi@caip.rutgers.edu>
 
 	* libiberty.h (getpwd): Prototype.
diff --git a/include/obstack.h b/include/obstack.h
index 38e96777660d5bbdafa108ae60def43e5221b750..a20ab55967a2aeba81039175b46ae304eb8ea214 100644
--- a/include/obstack.h
+++ b/include/obstack.h
@@ -143,12 +143,16 @@ extern "C" {
 
 #if defined _LIBC || defined HAVE_STRING_H
 # include <string.h>
-# define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N))
+# if defined __STDC__ && __STDC__
+#  define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N))
+# else
+#  define _obstack_memcpy(To, From, N) memcpy ((To), (char *)(From), (N))
+# endif
 #else
 # ifdef memcpy
-#  define _obstack_memcpy(To, From, N) memcpy ((To), (From), (N))
+#  define _obstack_memcpy(To, From, N) memcpy ((To), (char *)(From), (N))
 # else
-#  define _obstack_memcpy(To, From, N) bcopy ((From), (To), (N))
+#  define _obstack_memcpy(To, From, N) bcopy ((char *)(From), (To), (N))
 # endif
 #endif
 
@@ -385,7 +389,7 @@ __extension__								\
    int __len = (length);						\
    if (__o->next_free + __len > __o->chunk_limit)			\
      _obstack_newchunk (__o, __len);					\
-   _obstack_memcpy (__o->next_free, (char *) (where), __len);		\
+   _obstack_memcpy (__o->next_free, (where), __len);			\
    __o->next_free += __len;						\
    (void) 0; })
 
@@ -395,7 +399,7 @@ __extension__								\
    int __len = (length);						\
    if (__o->next_free + __len + 1 > __o->chunk_limit)			\
      _obstack_newchunk (__o, __len + 1);				\
-   _obstack_memcpy (__o->next_free, (char *) (where), __len);		\
+   _obstack_memcpy (__o->next_free, (where), __len);			\
    __o->next_free += __len;						\
    *(__o->next_free)++ = 0;						\
    (void) 0; })
@@ -510,14 +514,14 @@ __extension__								\
 ( (h)->temp = (length),							\
   (((h)->next_free + (h)->temp > (h)->chunk_limit)			\
    ? (_obstack_newchunk ((h), (h)->temp), 0) : 0),			\
-  _obstack_memcpy ((h)->next_free, (char *) (where), (h)->temp),	\
+  _obstack_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),			\
-  _obstack_memcpy ((h)->next_free, (char *) (where), (h)->temp),	\
+  _obstack_memcpy ((h)->next_free, (where), (h)->temp),			\
   (h)->next_free += (h)->temp,						\
   *((h)->next_free)++ = 0)