* configure.ac: Use AC_CHECK_DECLS instead of gcc_AC_CHECK_DECLS

and BFD_NEED_DECLARATION.  Don't check if a declaration of strdup
is necessary.
* configure, config.in: Regenerate.
* utils.c: Adjust for usage of AC_CHECK_DECLS instead of
BFD_NEED_DECLARATION.  Never provide a prototype for
caninicalize_file_name.
* gdb_string.h: Adjust for usage of AC_CHECK_DECLS instead of
BFD_NEED_DECLARATION.

6 files changed, 431 insertions, 627 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c6de86e1324..c7331366e47 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,5 +1,15 @@
 2005-01-21  Mark Kettenis  <kettenis@gnu.org>
 
+	* configure.ac: Use AC_CHECK_DECLS instead of gcc_AC_CHECK_DECLS
+	and BFD_NEED_DECLARATION.  Don't check if a declaration of strdup
+	is necessary.
+	* configure, config.in: Regenerate.
+	* utils.c: Adjust for usage of AC_CHECK_DECLS instead of
+	BFD_NEED_DECLARATION.  Never provide a prototype for
+	caninicalize_file_name.
+	* gdb_string.h: Adjust for usage of AC_CHECK_DECLS instead of
+	BFD_NEED_DECLARATION.
+
 	* configure.ac (targ_archs): Use standard autoconf check for
 	"struct stat.st_blocks" instead of rolling our own.
 	* configure: Regenerated.
diff --git a/gdb/config.in b/gdb/config.in
index b9d87115fe4..63b9e6187c8 100644
--- a/gdb/config.in
+++ b/gdb/config.in
@@ -212,12 +212,34 @@
 /* Define to 1 if you have the `dcgettext' function. */
 #undef HAVE_DCGETTEXT
 
-/* Define to 1 if we found this declaration otherwise define to 0. */
+/* Define to 1 if you have the declaration of `free', and to 0 if you don't.
+   */
+#undef HAVE_DECL_FREE
+
+/* Define to 1 if you have the declaration of `getopt', and to 0 if you don't.
+   */
 #undef HAVE_DECL_GETOPT
 
-/* Define to 1 if we found this declaration otherwise define to 0. */
+/* Define to 1 if you have the declaration of `malloc', and to 0 if you don't.
+   */
+#undef HAVE_DECL_MALLOC
+
+/* Define to 1 if you have the declaration of `ptrace', and to 0 if you don't.
+   */
 #undef HAVE_DECL_PTRACE
 
+/* Define to 1 if you have the declaration of `realloc', and to 0 if you
+   don't. */
+#undef HAVE_DECL_REALLOC
+
+/* Define to 1 if you have the declaration of `strerror', and to 0 if you
+   don't. */
+#undef HAVE_DECL_STRERROR
+
+/* Define to 1 if you have the declaration of `strstr', and to 0 if you don't.
+   */
+#undef HAVE_DECL_STRSTR
+
 /* Define to 1 if you have the <dirent.h> header file, and it defines `DIR'.
    */
 #undef HAVE_DIRENT_H
@@ -569,27 +591,6 @@
 /* Define as const if the declaration of iconv() needs const. */
 #undef ICONV_CONST
 
-/* Define if canonicalize_file_name is not declared in system header files. */
-#undef NEED_DECLARATION_CANONICALIZE_FILE_NAME
-
-/* Define if free is not declared in system header files. */
-#undef NEED_DECLARATION_FREE
-
-/* Define if malloc is not declared in system header files. */
-#undef NEED_DECLARATION_MALLOC
-
-/* Define if realloc is not declared in system header files. */
-#undef NEED_DECLARATION_REALLOC
-
-/* Define if strdup is not declared in system header files. */
-#undef NEED_DECLARATION_STRDUP
-
-/* Define if strerror is not declared in system header files. */
-#undef NEED_DECLARATION_STRERROR
-
-/* Define if strstr is not declared in system header files. */
-#undef NEED_DECLARATION_STRSTR
-
 /* Name of this package. */
 #undef PACKAGE
 
diff --git a/gdb/configure b/gdb/configure
index 028e495530a..fb045164a5f 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -13014,12 +13014,9 @@ done
 # Checks for declarations.  #
 # ------------------------- #
 
-for ac_func in getopt
-do
-  ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-echo "$as_me:$LINENO: checking whether $ac_func is declared" >&5
-echo $ECHO_N "checking whether $ac_func is declared... $ECHO_C" >&6
-if eval "test \"\${gcc_cv_have_decl_$ac_func+set}\" = set"; then
+echo "$as_me:$LINENO: checking whether free is declared" >&5
+echo $ECHO_N "checking whether free is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_free+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
@@ -13028,16 +13025,84 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-#undef $ac_tr_decl
-#define $ac_tr_decl 1
+$ac_includes_default
+int
+main ()
+{
+#ifndef free
+  char *p = (char *) free;
+#endif
 
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_have_decl_free=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_free=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_free" >&5
+echo "${ECHO_T}$ac_cv_have_decl_free" >&6
+if test $ac_cv_have_decl_free = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FREE 1
+_ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_FREE 0
+_ACEOF
 
+
+fi
+echo "$as_me:$LINENO: checking whether malloc is declared" >&5
+echo $ECHO_N "checking whether malloc is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_malloc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
 int
 main ()
 {
-#ifndef $ac_func
-char *(*pfn) = (char *(*)) $ac_func ;
+#ifndef malloc
+  char *p = (char *) malloc;
 #endif
+
   ;
   return 0;
 }
@@ -13064,39 +13129,318 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  eval "gcc_cv_have_decl_$ac_func=yes"
+  ac_cv_have_decl_malloc=yes
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-eval "gcc_cv_have_decl_$ac_func=no"
+ac_cv_have_decl_malloc=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_malloc" >&5
+echo "${ECHO_T}$ac_cv_have_decl_malloc" >&6
+if test $ac_cv_have_decl_malloc = yes; then
 
-if eval "test \"`echo '$gcc_cv_have_decl_'$ac_func`\" = yes"; then
-  echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 1
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MALLOC 1
 _ACEOF
 
+
 else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 0
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_MALLOC 0
 _ACEOF
 
+
 fi
+echo "$as_me:$LINENO: checking whether realloc is declared" >&5
+echo $ECHO_N "checking whether realloc is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_realloc+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef realloc
+  char *p = (char *) realloc;
+#endif
 
-done
-if test x = y ; then
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_have_decl_realloc=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
 
-cat >>confdefs.h <<\_ACEOF
+ac_cv_have_decl_realloc=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_realloc" >&5
+echo "${ECHO_T}$ac_cv_have_decl_realloc" >&6
+if test $ac_cv_have_decl_realloc = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_REALLOC 1
+_ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_REALLOC 0
+_ACEOF
+
+
+fi
+
+
+echo "$as_me:$LINENO: checking whether strerror is declared" >&5
+echo $ECHO_N "checking whether strerror is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strerror+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strerror
+  char *p = (char *) strerror;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_have_decl_strerror=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strerror=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strerror" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strerror" >&6
+if test $ac_cv_have_decl_strerror = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR 1
+_ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRERROR 0
+_ACEOF
+
+
+fi
+echo "$as_me:$LINENO: checking whether strstr is declared" >&5
+echo $ECHO_N "checking whether strstr is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_strstr+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef strstr
+  char *p = (char *) strstr;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_have_decl_strstr=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_strstr=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_strstr" >&5
+echo "${ECHO_T}$ac_cv_have_decl_strstr" >&6
+if test $ac_cv_have_decl_strstr = yes; then
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRSTR 1
+_ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_STRSTR 0
+_ACEOF
+
+
+fi
+
+
+echo "$as_me:$LINENO: checking whether getopt is declared" >&5
+echo $ECHO_N "checking whether getopt is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_getopt+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+$ac_includes_default
+int
+main ()
+{
+#ifndef getopt
+  char *p = (char *) getopt;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_have_decl_getopt=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_have_decl_getopt=no
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_getopt" >&5
+echo "${ECHO_T}$ac_cv_have_decl_getopt" >&6
+if test $ac_cv_have_decl_getopt = yes; then
+
+cat >>confdefs.h <<_ACEOF
 #define HAVE_DECL_GETOPT 1
 _ACEOF
+
+
+else
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_GETOPT 0
+_ACEOF
+
+
 fi
 
 
+
 # ----------------------- #
 # Checks for structures.  #
 # ----------------------- #
@@ -15850,12 +16194,9 @@ gdb_ptrace_headers='
 #endif
 '
 # There is no point in checking if we don't have a prototype.
-for ac_func in ptrace
-do
-  ac_tr_decl=HAVE_DECL_`echo $ac_func | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'`
-echo "$as_me:$LINENO: checking whether $ac_func is declared" >&5
-echo $ECHO_N "checking whether $ac_func is declared... $ECHO_C" >&6
-if eval "test \"\${gcc_cv_have_decl_$ac_func+set}\" = set"; then
+echo "$as_me:$LINENO: checking whether ptrace is declared" >&5
+echo $ECHO_N "checking whether ptrace is declared... $ECHO_C" >&6
+if test "${ac_cv_have_decl_ptrace+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
@@ -15864,16 +16205,15 @@ _ACEOF
 cat confdefs.h >>conftest.$ac_ext
 cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
-#undef $ac_tr_decl
-#define $ac_tr_decl 1
-  $gdb_ptrace_headers
+$gdb_ptrace_headers
 
 int
 main ()
 {
-#ifndef $ac_func
-char *(*pfn) = (char *(*)) $ac_func ;
+#ifndef ptrace
+  char *p = (char *) ptrace;
 #endif
+
   ;
   return 0;
 }
@@ -15900,40 +16240,35 @@ if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  eval "gcc_cv_have_decl_$ac_func=yes"
+  ac_cv_have_decl_ptrace=yes
 else
   echo "$as_me: failed program was:" >&5
 sed 's/^/| /' conftest.$ac_ext >&5
 
-eval "gcc_cv_have_decl_$ac_func=no"
+ac_cv_have_decl_ptrace=no
 fi
 rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
+echo "$as_me:$LINENO: result: $ac_cv_have_decl_ptrace" >&5
+echo "${ECHO_T}$ac_cv_have_decl_ptrace" >&6
+if test $ac_cv_have_decl_ptrace = yes; then
 
-if eval "test \"`echo '$gcc_cv_have_decl_'$ac_func`\" = yes"; then
-  echo "$as_me:$LINENO: result: yes" >&5
-echo "${ECHO_T}yes" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 1
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PTRACE 1
 _ACEOF
 
+
 else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6 ; cat >>confdefs.h <<_ACEOF
-#define $ac_tr_decl 0
+  cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PTRACE 0
 _ACEOF
 
+
   : ${gdb_cv_func_ptrace_ret='int'}
   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 
 fi
 
-done
-if test x = y ; then
-
-cat >>confdefs.h <<\_ACEOF
-#define HAVE_DECL_PTRACE 1
-_ACEOF
-fi
 
 # Check return type.
 echo "$as_me:$LINENO: checking return type of ptrace" >&5
@@ -17034,539 +17369,6 @@ _ACEOF
 
 fi
 
-echo "$as_me:$LINENO: checking whether malloc must be declared" >&5
-echo $ECHO_N "checking whether malloc must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_malloc+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) malloc
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_malloc=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_malloc=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_malloc" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_malloc" >&6
-if test $bfd_cv_decl_needed_malloc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_MALLOC 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking whether realloc must be declared" >&5
-echo $ECHO_N "checking whether realloc must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_realloc+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) realloc
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_realloc=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_realloc=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_realloc" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_realloc" >&6
-if test $bfd_cv_decl_needed_realloc = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_REALLOC 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking whether free must be declared" >&5
-echo $ECHO_N "checking whether free must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_free+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) free
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_free=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_free=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_free" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_free" >&6
-if test $bfd_cv_decl_needed_free = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_FREE 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking whether strerror must be declared" >&5
-echo $ECHO_N "checking whether strerror must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_strerror+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) strerror
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_strerror=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_strerror=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_strerror" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_strerror" >&6
-if test $bfd_cv_decl_needed_strerror = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_STRERROR 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking whether strdup must be declared" >&5
-echo $ECHO_N "checking whether strdup must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_strdup+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) strdup
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_strdup=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_strdup=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_strdup" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_strdup" >&6
-if test $bfd_cv_decl_needed_strdup = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_STRDUP 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking whether strstr must be declared" >&5
-echo $ECHO_N "checking whether strstr must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_strstr+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) strstr
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_strstr=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_strstr=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_strstr" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_strstr" >&6
-if test $bfd_cv_decl_needed_strstr = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_STRSTR 1
-_ACEOF
-
-fi
-
-echo "$as_me:$LINENO: checking whether canonicalize_file_name must be declared" >&5
-echo $ECHO_N "checking whether canonicalize_file_name must be declared... $ECHO_C" >&6
-if test "${bfd_cv_decl_needed_canonicalize_file_name+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
-/* end confdefs.h.  */
-
-#include <stdio.h>
-#ifdef HAVE_STRING_H
-#include <string.h>
-#else
-#ifdef HAVE_STRINGS_H
-#include <strings.h>
-#endif
-#endif
-#ifdef HAVE_STDLIB_H
-#include <stdlib.h>
-#endif
-#ifdef HAVE_UNISTD_H
-#include <unistd.h>
-#endif
-int
-main ()
-{
-char *(*pfn) = (char *(*)) canonicalize_file_name
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext
-if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
-  (eval $ac_compile) 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-	 { ac_try='test -z "$ac_c_werror_flag"
-			 || test ! -s conftest.err'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; } &&
-	 { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  bfd_cv_decl_needed_canonicalize_file_name=no
-else
-  echo "$as_me: failed program was:" >&5
-sed 's/^/| /' conftest.$ac_ext >&5
-
-bfd_cv_decl_needed_canonicalize_file_name=yes
-fi
-rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
-fi
-
-echo "$as_me:$LINENO: result: $bfd_cv_decl_needed_canonicalize_file_name" >&5
-echo "${ECHO_T}$bfd_cv_decl_needed_canonicalize_file_name" >&6
-if test $bfd_cv_decl_needed_canonicalize_file_name = yes; then
-
-cat >>confdefs.h <<\_ACEOF
-#define NEED_DECLARATION_CANONICALIZE_FILE_NAME 1
-_ACEOF
-
-fi
-
-
 # If we are configured native on GNU/Linux, work around problems with
 # sys/procfs.h
 # Also detect which type of /proc is in use, such as for Unixware or Solaris.
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 82c8bbe8176..7243cbd0925 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -424,7 +424,9 @@ AC_CHECK_HEADERS(ctype.h time.h)
 # Checks for declarations.  #
 # ------------------------- #
 
-gcc_AC_CHECK_DECLS(getopt)
+AC_CHECK_DECLS([free, malloc, realloc])
+AC_CHECK_DECLS([strerror, strstr])
+AC_CHECK_DECLS(getopt)
 
 # ----------------------- #
 # Checks for structures.  #
@@ -477,7 +479,7 @@ gdb_ptrace_headers='
 #endif
 '
 # There is no point in checking if we don't have a prototype.
-gcc_AC_CHECK_DECLS(ptrace, , [
+AC_CHECK_DECLS(ptrace, [], [
   : ${gdb_cv_func_ptrace_ret='int'}
   : ${gdb_cv_func_ptrace_args='int,int,long,long'}
 ], $gdb_ptrace_headers)
@@ -694,14 +696,6 @@ if test $gdb_cv_have_uintptr_t = yes; then
   AC_DEFINE(HAVE_UINTPTR_T, 1, [Define if <stdint.h> provides the uintptr_t type.])
 fi
 
-BFD_NEED_DECLARATION(malloc)
-BFD_NEED_DECLARATION(realloc)
-BFD_NEED_DECLARATION(free)
-BFD_NEED_DECLARATION(strerror)
-BFD_NEED_DECLARATION(strdup)
-BFD_NEED_DECLARATION(strstr)
-BFD_NEED_DECLARATION(canonicalize_file_name)
-
 # If we are configured native on GNU/Linux, work around problems with
 # sys/procfs.h
 # Also detect which type of /proc is in use, such as for Unixware or Solaris.
diff --git a/gdb/gdb_string.h b/gdb/gdb_string.h
index f54af80845c..4ccb500bba5 100644
--- a/gdb/gdb_string.h
+++ b/gdb/gdb_string.h
@@ -1,5 +1,7 @@
 /* Portable <string.h>
-   Copyright 1995, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+
+   Copyright 1995, 1998, 1999, 2000, 2001, 2004
+   Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -52,15 +54,15 @@ extern int memcmp ();
 #endif
 #endif /* STDC_HEADERS */
 
-#ifdef NEED_DECLARATION_STRERROR
+#if !HAVE_DECL_STRERROR
 #ifndef strerror
 extern char *strerror (int);	/* X3.159-1989  4.11.6.2 */
 #endif
 #endif
 
-#ifdef NEED_DECLARATION_STRSTR
+#if !HAVE_DECL_STRSTR
 #ifndef strstr
-extern char *strstr (const char *, const char *);	/* X3.159-1989  4.11.5.7 */
+extern char *strstr (const char *, const char *); /* X3.159-1989  4.11.5.7 */
 #endif
 #endif
 
diff --git a/gdb/utils.c b/gdb/utils.c
index 55ee7ec0d04..1bdcb6338b0 100644
--- a/gdb/utils.c
+++ b/gdb/utils.c
@@ -62,20 +62,15 @@
 
 #include "readline/readline.h"
 
-#ifdef NEED_DECLARATION_MALLOC
+#if !HAVE_DECL_MALLOC
 extern PTR malloc ();		/* OK: PTR */
 #endif
-#ifdef NEED_DECLARATION_REALLOC
+#if !HAVE_DECL_REALLOC
 extern PTR realloc ();		/* OK: PTR */
 #endif
-#ifdef NEED_DECLARATION_FREE
+#if !HAVE_DECL_FREE
 extern void free ();
 #endif
-/* Actually, we'll never have the decl, since we don't define _GNU_SOURCE.  */
-#if defined(HAVE_CANONICALIZE_FILE_NAME) \
-    && defined(NEED_DECLARATION_CANONICALIZE_FILE_NAME)
-extern char *canonicalize_file_name (const char *);
-#endif
 
 /* readline defines this.  */
 #undef savestring