2004-01-13 Andrew Cagney <cagney@redhat.com>

	* configure.in: Update copyright year.
	(build_warnings): Add -Wunused-label.
	* configure: Re-generate.

2004-01-13  Andrew Cagney  <cagney@redhat.com>

	* gdbint.texinfo: Update copyright year.
	(Coding): Add -Wunused-label to list of -Werror warnings.

5 files changed, 79 insertions, 49 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index c5993ee..03aea9e 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2004-01-13  Andrew Cagney  <cagney@redhat.com>
+
+	* configure.in: Update copyright year.
+	(build_warnings): Add -Wunused-label.
+	* configure: Re-generate.
+
 2004-01-12  Andrew Cagney  <cagney@redhat.com>
 
 	* exec.h (exec_ops): Make "extern".
diff --git a/gdb/configure b/gdb/configure
index da58de1..c7b83b5 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -9221,9 +9221,10 @@ fi
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized -Wformat-nonliteral"
+-Wformat -Wparentheses -Wpointer-arith -Wuninitialized -Wformat-nonliteral \
+-Wunused-label"
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
-# -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
+# -Wunused-function -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
 # -Wcast-align -Wwrite-strings -Wconversion -Wstrict-prototypes
 # -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
@@ -9265,7 +9266,7 @@ WERROR_CFLAGS=""
 if test "x${build_warnings}" != x -a "x$GCC" = xyes
 then
     echo $ac_n "checking compiler warning flags""... $ac_c" 1>&6
-echo "configure:9269: checking compiler warning flags" >&5
+echo "configure:9270: checking compiler warning flags" >&5
     # Separate out the -Werror flag as some files just cannot be
     # compiled with it enabled.
     for w in ${build_warnings}; do
@@ -9275,14 +9276,14 @@ echo "configure:9269: checking compiler warning flags" >&5
 	    saved_CFLAGS="$CFLAGS"
 	    CFLAGS="$CFLAGS $w"
 	    cat > conftest.$ac_ext <<EOF
-#line 9279 "configure"
+#line 9280 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:9286: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:9287: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   WARN_CFLAGS="${WARN_CFLAGS} $w"
 else
@@ -9330,12 +9331,12 @@ fi
 
 # In the Cygwin environment, we need some additional flags.
 echo $ac_n "checking for cygwin""... $ac_c" 1>&6
-echo "configure:9334: checking for cygwin" >&5
+echo "configure:9335: checking for cygwin" >&5
 if eval "test \"`echo '$''{'gdb_cv_os_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9339 "configure"
+#line 9340 "configure"
 #include "confdefs.h"
 
 #if defined (__CYGWIN__) || defined (__CYGWIN32__)
@@ -9413,7 +9414,7 @@ if test "${with_tclconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tcl configuration""... $ac_c" 1>&6
-echo "configure:9417: checking for Tcl configuration" >&5
+echo "configure:9418: checking for Tcl configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9522,7 +9523,7 @@ if test "${with_tkconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Tk configuration""... $ac_c" 1>&6
-echo "configure:9526: checking for Tk configuration" >&5
+echo "configure:9527: checking for Tk configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_tkconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -9631,7 +9632,7 @@ fi
 
 no_tcl=true
 echo $ac_n "checking for Tcl private headers. dir=${configdir}""... $ac_c" 1>&6
-echo "configure:9635: checking for Tcl private headers. dir=${configdir}" >&5
+echo "configure:9636: checking for Tcl private headers. dir=${configdir}" >&5
 # Check whether --with-tclinclude or --without-tclinclude was given.
 if test "${with_tclinclude+set}" = set; then
   withval="$with_tclinclude"
@@ -9697,17 +9698,17 @@ fi
 if test x"${ac_cv_c_tclh}" = x ; then
    ac_safe=`echo "tclInt.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for tclInt.h""... $ac_c" 1>&6
-echo "configure:9701: checking for tclInt.h" >&5
+echo "configure:9702: checking for tclInt.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9706 "configure"
+#line 9707 "configure"
 #include "confdefs.h"
 #include <tclInt.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:9711: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:9712: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -9767,7 +9768,7 @@ fi
 #
 no_tk=true
 echo $ac_n "checking for Tk private headers""... $ac_c" 1>&6
-echo "configure:9771: checking for Tk private headers" >&5
+echo "configure:9772: checking for Tk private headers" >&5
 # Check whether --with-tkinclude or --without-tkinclude was given.
 if test "${with_tkinclude+set}" = set; then
   withval="$with_tkinclude"
@@ -9833,17 +9834,17 @@ fi
 if test x"${ac_cv_c_tkh}" = x ; then
    ac_safe=`echo "tk.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for tk.h""... $ac_c" 1>&6
-echo "configure:9837: checking for tk.h" >&5
+echo "configure:9838: checking for tk.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 9842 "configure"
+#line 9843 "configure"
 #include "confdefs.h"
 #include <tk.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:9847: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:9848: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -9889,7 +9890,7 @@ fi
 
 	   
 echo $ac_n "checking for Itcl private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:9893: checking for Itcl private headers. srcdir=${srcdir}" >&5
+echo "configure:9894: checking for Itcl private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_itclh}" = x ; then
   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itcl; do
     if test -f $i/generic/itcl.h ; then
@@ -9912,7 +9913,7 @@ fi
 
 	   
 echo $ac_n "checking for Itk private headers. srcdir=${srcdir}""... $ac_c" 1>&6
-echo "configure:9916: checking for Itk private headers. srcdir=${srcdir}" >&5
+echo "configure:9917: checking for Itk private headers. srcdir=${srcdir}" >&5
 if test x"${ac_cv_c_itkh}" = x ; then
   for i in ${srcdir}/../itcl ${srcdir}/../../itcl ${srcdir}/../../../itcl ${srcdir}/../itcl/itk; do
     if test -f $i/generic/itk.h ; then
@@ -9967,7 +9968,7 @@ if test "${with_itclconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Itcl configuration""... $ac_c" 1>&6
-echo "configure:9971: checking for Itcl configuration" >&5
+echo "configure:9972: checking for Itcl configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_itclconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10070,7 +10071,7 @@ if test "${with_itkconfig+set}" = set; then
 fi
 
   echo $ac_n "checking for Itk configuration""... $ac_c" 1>&6
-echo "configure:10074: checking for Itk configuration" >&5
+echo "configure:10075: checking for Itk configuration" >&5
   if eval "test \"`echo '$''{'ac_cv_c_itkconfig'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10213,7 +10214,7 @@ fi
 # Uses ac_ vars as temps to allow command line to override cache and checks.
 # --without-x overrides everything else, but does not touch the cache.
 echo $ac_n "checking for X""... $ac_c" 1>&6
-echo "configure:10217: checking for X" >&5
+echo "configure:10218: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -10275,12 +10276,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 10279 "configure"
+#line 10280 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:10284: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:10285: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -10349,14 +10350,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 10353 "configure"
+#line 10354 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:10360: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10361: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   LIBS="$ac_save_LIBS"
 # We can link X programs with no special library path.
@@ -10570,7 +10571,7 @@ fi
 # We only build gdbserver automatically if host and target are the same.
 if test "x$target" = "x$host"; then
   echo $ac_n "checking whether gdbserver is supported on this host""... $ac_c" 1>&6
-echo "configure:10574: checking whether gdbserver is supported on this host" >&5
+echo "configure:10575: checking whether gdbserver is supported on this host" >&5
   if test "x$build_gdbserver" = xyes; then
     configdirs="$configdirs gdbserver"
     echo "$ac_t""yes" 1>&6
@@ -10634,12 +10635,12 @@ fi
 
 
 echo $ac_n "checking for Cygwin environment""... $ac_c" 1>&6
-echo "configure:10638: checking for Cygwin environment" >&5
+echo "configure:10639: checking for Cygwin environment" >&5
 if eval "test \"`echo '$''{'ac_cv_cygwin'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10643 "configure"
+#line 10644 "configure"
 #include "confdefs.h"
 
 int main() {
@@ -10650,7 +10651,7 @@ int main() {
 return __CYGWIN__;
 ; return 0; }
 EOF
-if { (eval echo configure:10654: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10655: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_cygwin=yes
 else
@@ -10667,19 +10668,19 @@ echo "$ac_t""$ac_cv_cygwin" 1>&6
 CYGWIN=
 test "$ac_cv_cygwin" = yes && CYGWIN=yes
 echo $ac_n "checking for mingw32 environment""... $ac_c" 1>&6
-echo "configure:10671: checking for mingw32 environment" >&5
+echo "configure:10672: checking for mingw32 environment" >&5
 if eval "test \"`echo '$''{'ac_cv_mingw32'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 10676 "configure"
+#line 10677 "configure"
 #include "confdefs.h"
 
 int main() {
 return __MINGW32__;
 ; return 0; }
 EOF
-if { (eval echo configure:10683: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10684: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   ac_cv_mingw32=yes
 else
@@ -10698,7 +10699,7 @@ test "$ac_cv_mingw32" = yes && MINGW32=yes
 
 
 echo $ac_n "checking for executable suffix""... $ac_c" 1>&6
-echo "configure:10702: checking for executable suffix" >&5
+echo "configure:10703: checking for executable suffix" >&5
 if eval "test \"`echo '$''{'ac_cv_exeext'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10708,10 +10709,10 @@ else
   rm -f conftest*
   echo 'int main () { return 0; }' > conftest.$ac_ext
   ac_cv_exeext=
-  if { (eval echo configure:10712: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
+  if { (eval echo configure:10713: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; }; then
     for file in conftest.*; do
       case $file in
-      *.c | *.C | *.o | *.obj | *.ilk | *.pdb) ;;
+      *.c | *.o | *.obj | *.ilk | *.pdb) ;;
       *) ac_cv_exeext=`echo $file | sed -e s/conftest//` ;;
       esac
     done
@@ -10750,7 +10751,7 @@ fi
 
 
   echo $ac_n "checking for iconv""... $ac_c" 1>&6
-echo "configure:10754: checking for iconv" >&5
+echo "configure:10755: checking for iconv" >&5
 if eval "test \"`echo '$''{'am_cv_func_iconv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -10758,7 +10759,7 @@ else
     am_cv_func_iconv="no, consider installing GNU libiconv"
     am_cv_lib_iconv=no
     cat > conftest.$ac_ext <<EOF
-#line 10762 "configure"
+#line 10763 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <iconv.h>
@@ -10768,7 +10769,7 @@ iconv_t cd = iconv_open("","");
        iconv_close(cd);
 ; return 0; }
 EOF
-if { (eval echo configure:10772: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10773: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_func_iconv=yes
 else
@@ -10780,7 +10781,7 @@ rm -f conftest*
       am_save_LIBS="$LIBS"
       LIBS="$LIBS -liconv"
       cat > conftest.$ac_ext <<EOF
-#line 10784 "configure"
+#line 10785 "configure"
 #include "confdefs.h"
 #include <stdlib.h>
 #include <iconv.h>
@@ -10790,7 +10791,7 @@ iconv_t cd = iconv_open("","");
          iconv_close(cd);
 ; return 0; }
 EOF
-if { (eval echo configure:10794: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:10795: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   am_cv_lib_iconv=yes
         am_cv_func_iconv=yes
@@ -10811,13 +10812,13 @@ echo "$ac_t""$am_cv_func_iconv" 1>&6
 EOF
 
     echo $ac_n "checking for iconv declaration""... $ac_c" 1>&6
-echo "configure:10815: checking for iconv declaration" >&5
+echo "configure:10816: checking for iconv declaration" >&5
     if eval "test \"`echo '$''{'am_cv_proto_iconv'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   
       cat > conftest.$ac_ext <<EOF
-#line 10821 "configure"
+#line 10822 "configure"
 #include "confdefs.h"
 
 #include <stdlib.h>
@@ -10836,7 +10837,7 @@ int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:10840: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
+if { (eval echo configure:10841: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; }; then
   rm -rf conftest*
   am_cv_proto_iconv_arg1=""
 else
diff --git a/gdb/configure.in b/gdb/configure.in
index 2ab32fe..f555fcd 100644
--- a/gdb/configure.in
+++ b/gdb/configure.in
@@ -1,5 +1,5 @@
 dnl Autoconf configure script for GDB, the GNU debugger.
-dnl Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
+dnl Copyright 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004
 dnl Free Software Foundation, Inc.
 dnl
 dnl This file is part of GDB.
@@ -1024,9 +1024,10 @@ AC_SUBST(TARGET_SYSTEM_ROOT_DEFINE)
 # NOTE: If you add to this list, remember to update
 # gdb/doc/gdbint.texinfo.
 build_warnings="-Wimplicit -Wreturn-type -Wcomment -Wtrigraphs \
--Wformat -Wparentheses -Wpointer-arith -Wuninitialized -Wformat-nonliteral"
+-Wformat -Wparentheses -Wpointer-arith -Wuninitialized -Wformat-nonliteral \
+-Wunused-label"
 # Up for debate: -Wswitch -Wcomment -trigraphs -Wtrigraphs
-# -Wunused-function -Wunused-label -Wunused-variable -Wunused-value
+# -Wunused-function -Wunused-variable -Wunused-value
 # -Wchar-subscripts -Wtraditional -Wshadow -Wcast-qual
 # -Wcast-align -Wwrite-strings -Wconversion -Wstrict-prototypes
 # -Wmissing-prototypes -Wmissing-declarations -Wredundant-decls
diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 6d8feda..dd942753 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,8 @@
+2004-01-13  Andrew Cagney  <cagney@redhat.com>
+
+	* gdbint.texinfo: Update copyright year.
+	(Coding): Add -Wunused-label to list of -Werror warnings.
+
 2004-01-08  Jason Molenda  <jmolenda@apple.com>
             Eli Zaretskii  <eliz@is.elta.co.il>
 
diff --git a/gdb/doc/gdbint.texinfo b/gdb/doc/gdbint.texinfo
index 3170ce2..2cd88d9 100644
--- a/gdb/doc/gdbint.texinfo
+++ b/gdb/doc/gdbint.texinfo
@@ -8,7 +8,7 @@
 
 @ifinfo
 This file documents the internals of the GNU debugger @value{GDBN}.
-Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002,2003
+Copyright 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,2002,2003,2004
    Free Software Foundation, Inc.
 Contributed by Cygnus Solutions.  Written by John Gilmore.
 Second Edition by Stan Shebs.
@@ -48,7 +48,7 @@ Free Documentation License''.
 
 @vskip 0pt plus 1filll
 Copyright @copyright{} 1990,1991,1992,1993,1994,1996,1998,1999,2000,2001,
-   2002, 2003  Free Software Foundation, Inc.
+   2002, 2003, 2004  Free Software Foundation, Inc.
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.1 or
@@ -5132,6 +5132,23 @@ This warning includes uses of the assignment operator within an
 @item -Wpointer-arith
 
 @item -Wuninitialized
+
+@item -Wunused-label
+This warning has the additional benefit of detecting the absence of the
+@code{case} reserved word in a switch statement:
+@smallexample
+enum @{ FD_SCHEDULED, NOTHING_SCHEDULED @} sched;
+@dots{}
+switch (sched)
+  @{
+  case FD_SCHEDULED:
+    @dots{};
+    break;
+  NOTHING_SCHEDULED:
+    @dots{};
+    break;
+  @}
+@end smallexample
 @end table
 
 @emph{Pragmatics: Due to the way that @value{GDBN} is implemented most