diff --git a/gdb/defs.h b/gdb/defs.h
--- a/gdb/defs.h
+++ b/gdb/defs.h
@@ -612,16 +612,6 @@ enum gdb_osabi
   GDB_OSABI_INVALID		/* keep this last */
 };
 
-/* Global functions from other, non-gdb GNU thingies.
-   Libiberty thingies are no longer declared here.  We include libiberty.h
-   above, instead.  */
-
-/* From other system libraries */
-
-#ifndef atof
-extern double atof (const char *);	/* X3.159-1989  4.10.1.1 */
-#endif
-
 /* Enumerate the requirements a symbol has in order to be evaluated.
    These are listed in order of "strength" -- a later entry subsumes
    earlier ones.  This fine-grained distinction is important because
diff --git a/gdb/procfs.c b/gdb/procfs.c
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -791,7 +791,7 @@ destroy_procinfo (procinfo *pi)
 static void
 do_destroy_procinfo_cleanup (void *pi)
 {
-  destroy_procinfo (pi);
+  destroy_procinfo ((procinfo *) pi);
 }
 
 enum { NOKILL, KILL };
@@ -845,7 +845,7 @@ sysset_t_alloc (procinfo * pi)
   sysset_t *ret;
   int size = sysset_t_size (pi);
 
-  ret = xmalloc (size);
+  ret = (sysset_t *) xmalloc (size);
 #ifdef DYNAMIC_SYSCALLS
   ret->pr_size = ((pi->num_syscalls + (8 * sizeof (uint64_t) - 1))
 		  / (8 * sizeof (uint64_t)));
@@ -1675,7 +1675,7 @@ proc_set_traced_sysentry (procinfo *pi, 
 		  - sizeof (sysset_t)
 		  + sysset_t_size (pi);
 
-    argp = xmalloc (argp_size);
+    argp = (struct gdb_proc_ctl_pcsentry *) xmalloc (argp_size);
 
     argp->cmd = PCSENTRY;
     memcpy (&argp->sysset, sysset, sysset_t_size (pi));
@@ -1720,7 +1720,7 @@ proc_set_traced_sysexit (procinfo *pi, s
 		  - sizeof (sysset_t)
 		  + sysset_t_size (pi);
 
-    argp = xmalloc (argp_size);
+    argp = (struct gdb_proc_ctl_pcsexit *) xmalloc (argp_size);
 
     argp->cmd = PCSEXIT;
     memcpy (&argp->sysset, sysset, sysset_t_size (pi));
@@ -2512,9 +2512,13 @@ proc_get_LDT_entry (procinfo *pi, int ke
 	break;	/* end of table */
       /* If key matches, return this entry.  */
       if (ldt_entry->sel == key)
-	return ldt_entry;
+	{
+	  do_cleanups (old_chain);
+	  return ldt_entry;
+	}
     }
   /* Loop ended, match not found.  */
+  do_cleanups (old_chain);
   return NULL;
 #else
   int nldt, i;
@@ -2756,7 +2760,7 @@ proc_update_threads (procinfo *pi)
 static void
 do_closedir_cleanup (void *dir)
 {
-  closedir (dir);
+  closedir ((DIR *) dir);
 }
 
 static int
@@ -3836,7 +3840,7 @@ wait_again:
 		      add_thread (temp_ptid);
 
 		    status->kind = TARGET_WAITKIND_STOPPED;
-		    status->value.sig = 0;
+		    status->value.sig = GDB_SIGNAL_0;
 		    return retval;
 		  }
 #endif
@@ -4567,7 +4571,7 @@ procfs_create_inferior (struct target_op
       if (path == NULL)
 	path = "/bin:/usr/bin";
 
-      tryname = alloca (strlen (path) + strlen (shell_file) + 2);
+      tryname = (char *) alloca (strlen (path) + strlen (shell_file) + 2);
       for (p = path; p != NULL; p = p1 ? p1 + 1: NULL)
 	{
 	  p1 = strchr (p, ':');
@@ -5367,7 +5371,8 @@ struct procfs_corefile_thread_data {
 static int
 procfs_corefile_thread_callback (procinfo *pi, procinfo *thread, void *data)
 {
-  struct procfs_corefile_thread_data *args = data;
+  struct procfs_corefile_thread_data *args
+    = (struct procfs_corefile_thread_data *) data;
 
   if (pi != NULL)
     {
diff --git a/gdb/sol-thread.c b/gdb/sol-thread.c
--- a/gdb/sol-thread.c
+++ b/gdb/sol-thread.c
@@ -98,56 +98,82 @@ static void init_sol_thread_ops (void);
 /* Default definitions: These must be defined in tm.h if they are to
    be shared with a process module such as procfs.  */
 
+/* Types of the libthread_db functions.  */
+
+typedef void (td_log_ftype)(const int on_off);
+typedef td_err_e (td_ta_new_ftype)(const struct ps_prochandle *ph_p,
+				   td_thragent_t **ta_pp);
+typedef td_err_e (td_ta_delete_ftype)(td_thragent_t *ta_p);
+typedef td_err_e (td_init_ftype)(void);
+typedef td_err_e (td_ta_get_ph_ftype)(const td_thragent_t *ta_p,
+				      struct ps_prochandle **ph_pp);
+typedef td_err_e (td_ta_get_nthreads_ftype)(const td_thragent_t *ta_p,
+					    int *nthread_p);
+typedef td_err_e (td_ta_tsd_iter_ftype)(const td_thragent_t *ta_p,
+					td_key_iter_f *cb, void *cbdata_p);
+typedef td_err_e (td_ta_thr_iter_ftype)(const td_thragent_t *ta_p,
+					td_thr_iter_f *cb, void *cbdata_p,
+					td_thr_state_e state, int ti_pri,
+					sigset_t *ti_sigmask_p,
+					unsigned ti_user_flags);
+typedef td_err_e (td_thr_validate_ftype)(const td_thrhandle_t *th_p);
+typedef td_err_e (td_thr_tsd_ftype)(const td_thrhandle_t * th_p,
+				    const thread_key_t key, void **data_pp);
+typedef td_err_e (td_thr_get_info_ftype)(const td_thrhandle_t *th_p,
+					 td_thrinfo_t *ti_p);
+typedef td_err_e (td_thr_getfpregs_ftype)(const td_thrhandle_t *th_p,
+					  prfpregset_t *fpregset);
+typedef td_err_e (td_thr_getxregsize_ftype)(const td_thrhandle_t *th_p,
+					    int *xregsize);
+typedef td_err_e (td_thr_getxregs_ftype)(const td_thrhandle_t *th_p,
+					 const caddr_t xregset);
+typedef td_err_e (td_thr_sigsetmask_ftype)(const td_thrhandle_t *th_p,
+					   const sigset_t ti_sigmask);
+typedef td_err_e (td_thr_setprio_ftype)(const td_thrhandle_t *th_p,
+					const int ti_pri);
+typedef td_err_e (td_thr_setsigpending_ftype)(const td_thrhandle_t *th_p,
+					      const uchar_t ti_pending_flag,
+					      const sigset_t ti_pending);
+typedef td_err_e (td_thr_setfpregs_ftype)(const td_thrhandle_t *th_p,
+					  const prfpregset_t *fpregset);
+typedef td_err_e (td_thr_setxregs_ftype)(const td_thrhandle_t *th_p,
+					 const caddr_t xregset);
+typedef td_err_e (td_ta_map_id2thr_ftype)(const td_thragent_t *ta_p,
+					  thread_t tid,
+					  td_thrhandle_t *th_p);
+typedef td_err_e (td_ta_map_lwp2thr_ftype)(const td_thragent_t *ta_p,
+					   lwpid_t lwpid,
+					   td_thrhandle_t *th_p);
+typedef td_err_e (td_thr_getgregs_ftype)(const td_thrhandle_t *th_p,
+					 prgregset_t regset);
+typedef td_err_e (td_thr_setgregs_ftype)(const td_thrhandle_t *th_p,
+					 const prgregset_t regset);
+
 /* Pointers to routines from libthread_db resolved by dlopen().  */
 
-static void (*p_td_log)(const int on_off);
-static td_err_e (*p_td_ta_new)(const struct ps_prochandle *ph_p,
-			       td_thragent_t **ta_pp);
-static td_err_e (*p_td_ta_delete)(td_thragent_t *ta_p);
-static td_err_e (*p_td_init)(void);
-static td_err_e (*p_td_ta_get_ph)(const td_thragent_t *ta_p,
-				  struct ps_prochandle **ph_pp);
-static td_err_e (*p_td_ta_get_nthreads)(const td_thragent_t *ta_p,
-					int *nthread_p);
-static td_err_e (*p_td_ta_tsd_iter)(const td_thragent_t *ta_p,
-				    td_key_iter_f *cb, void *cbdata_p);
-static td_err_e (*p_td_ta_thr_iter)(const td_thragent_t *ta_p,
-				    td_thr_iter_f *cb, void *cbdata_p,
-				    td_thr_state_e state, int ti_pri,
-				    sigset_t *ti_sigmask_p,
-				    unsigned ti_user_flags);
-static td_err_e (*p_td_thr_validate)(const td_thrhandle_t *th_p);
-static td_err_e (*p_td_thr_tsd)(const td_thrhandle_t * th_p,
-				const thread_key_t key, void **data_pp);
-static td_err_e (*p_td_thr_get_info)(const td_thrhandle_t *th_p,
-				     td_thrinfo_t *ti_p);
-static td_err_e (*p_td_thr_getfpregs)(const td_thrhandle_t *th_p,
-				      prfpregset_t *fpregset);
-static td_err_e (*p_td_thr_getxregsize)(const td_thrhandle_t *th_p,
-					int *xregsize);
-static td_err_e (*p_td_thr_getxregs)(const td_thrhandle_t *th_p,
-				     const caddr_t xregset);
-static td_err_e (*p_td_thr_sigsetmask)(const td_thrhandle_t *th_p,
-				       const sigset_t ti_sigmask);
-static td_err_e (*p_td_thr_setprio)(const td_thrhandle_t *th_p,
-				    const int ti_pri);
-static td_err_e (*p_td_thr_setsigpending)(const td_thrhandle_t *th_p,
-					  const uchar_t ti_pending_flag,
-					  const sigset_t ti_pending);
-static td_err_e (*p_td_thr_setfpregs)(const td_thrhandle_t *th_p,
-				      const prfpregset_t *fpregset);
-static td_err_e (*p_td_thr_setxregs)(const td_thrhandle_t *th_p,
-				     const caddr_t xregset);
-static td_err_e (*p_td_ta_map_id2thr)(const td_thragent_t *ta_p,
-				      thread_t tid,
-				      td_thrhandle_t *th_p);
-static td_err_e (*p_td_ta_map_lwp2thr)(const td_thragent_t *ta_p,
-				       lwpid_t lwpid,
-				       td_thrhandle_t *th_p);
-static td_err_e (*p_td_thr_getgregs)(const td_thrhandle_t *th_p,
-				     prgregset_t regset);
-static td_err_e (*p_td_thr_setgregs)(const td_thrhandle_t *th_p,
-				     const prgregset_t regset);
+static td_log_ftype *p_td_log;
+static td_ta_new_ftype *p_td_ta_new;
+static td_ta_delete_ftype *p_td_ta_delete;
+static td_init_ftype *p_td_init;
+static td_ta_get_ph_ftype *p_td_ta_get_ph;
+static td_ta_get_nthreads_ftype *p_td_ta_get_nthreads;
+static td_ta_tsd_iter_ftype *p_td_ta_tsd_iter;
+static td_ta_thr_iter_ftype *p_td_ta_thr_iter;
+static td_thr_validate_ftype *p_td_thr_validate;
+static td_thr_tsd_ftype *p_td_thr_tsd;
+static td_thr_get_info_ftype *p_td_thr_get_info;
+static td_thr_getfpregs_ftype *p_td_thr_getfpregs;
+static td_thr_getxregsize_ftype *p_td_thr_getxregsize;
+static td_thr_getxregs_ftype *p_td_thr_getxregs;
+static td_thr_sigsetmask_ftype *p_td_thr_sigsetmask;
+static td_thr_setprio_ftype *p_td_thr_setprio;
+static td_thr_setsigpending_ftype *p_td_thr_setsigpending;
+static td_thr_setfpregs_ftype *p_td_thr_setfpregs;
+static td_thr_setxregs_ftype *p_td_thr_setxregs;
+static td_ta_map_id2thr_ftype *p_td_ta_map_id2thr;
+static td_ta_map_lwp2thr_ftype *p_td_ta_map_lwp2thr;
+static td_thr_getgregs_ftype *p_td_thr_getgregs;
+static td_thr_setgregs_ftype *p_td_thr_setgregs;
 
 
 /* Return the libthread_db error string associated with ERRCODE.  If
@@ -818,7 +844,7 @@ ps_err_e
 ps_pdread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
 	   gdb_ps_read_buf_t buf, gdb_ps_size_t size)
 {
-  return rw_common (0, ph, addr, buf, size);
+  return rw_common (0, ph, addr, (gdb_byte *) buf, size);
 }
 
 /* Copies SIZE bytes from debugger memory .data segment to target process.  */
@@ -836,7 +862,7 @@ ps_err_e
 ps_ptread (gdb_ps_prochandle_t ph, gdb_ps_addr_t addr,
 	   gdb_ps_read_buf_t buf, gdb_ps_size_t size)
 {
-  return rw_common (0, ph, addr, buf, size);
+  return rw_common (0, ph, addr, (gdb_byte *) buf, size);
 }
 
 /* Copies SIZE bytes from debugger memory .text segment to target process.  */
@@ -1249,7 +1275,7 @@ void
     goto die;
 
 #define resolve(X) \
-  if (!(p_##X = dlsym (dlhandle, #X))) \
+  if (!(p_##X = (X ## _ftype *) dlsym (dlhandle, #X)))	\
     goto die;
 
   resolve (td_log);
diff --git a/gdb/top.c b/gdb/top.c
--- a/gdb/top.c
+++ b/gdb/top.c
@@ -1167,7 +1167,7 @@ gdb_safe_append_history (void)
   struct cleanup *old_chain;
 
   local_history_filename
-    = xstrprintf ("%s-gdb%d~", history_filename, getpid ());
+    = xstrprintf ("%s-gdb%ld~", history_filename, (long) getpid ());
   old_chain = make_cleanup (xfree, local_history_filename);
 
   ret = rename (history_filename, local_history_filename);
