Add checking for syslog.h

Enable multibyte support by default. Note that this is the first cut,
and I'm gloing to remove #ifdef MULTIBYTE and others step by step...

configure

@@ -851,7 +851,6 @@ Optional Features:
   --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
   --enable-integer-datetimes  enable 64-bit integer date/time support
   --enable-recode         enable character set recode support
-  --enable-multibyte      enable multibyte character support
   --enable-nls[=LANGUAGES]  enable Native Language Support
   --disable-shared        do not build shared libraries
   --disable-rpath         do not embed shared library search path in executables
@@ -1655,73 +1654,12 @@ echo "${ECHO_T}$enable_recode" >&6
 #
 # Multibyte support
 #
-MULTIBYTE=
-echo "$as_me:$LINENO: checking whether to build with multibyte character support" >&5
-echo $ECHO_N "checking whether to build with multibyte character support... $ECHO_C" >&6
-
-
-
-# Check whether --enable-multibyte or --disable-multibyte was given.
-if test "${enable_multibyte+set}" = set; then
-  enableval="$enable_multibyte"
-
-  case $enableval in
-    yes)
-      MULTIBYTE=SQL_ASCII
-      ;;
-    no)
-      :
-      ;;
-    *)
-      enable_multibyte=yes
-
-  case $enableval in
-    SQL_ASCII|EUC_JP|EUC_CN|EUC_KR|EUC_TW|JOHAB|UNICODE|MULE_INTERNAL|LATIN1|LATIN2|LATIN3|LATIN4|LATIN5|LATIN6|LATIN7|LATIN8|LATIN9|LATIN10|WIN1256|TCVN|WIN874|KOI8|WIN|ALT|ISO_8859_5|ISO_8859_6|ISO_8859_7|ISO_8859_8)
-      MULTIBYTE=$enableval;;
-    *)
-      { { echo "$as_me:$LINENO: error: argument to --enable-multibyte must be one of:
-  SQL_ASCII, EUC_JP, EUC_CN, EUC_KR, EUC_TW, JOHAB,
-  UNICODE, MULE_INTERNAL,
-  LATIN1, LATIN2, LATIN3, LATIN4, LATIN5,
-  LATIN6, LATIN7, LATIN8, LATIN9, LATIN10,
-  WIN1256, TCVN, WIN874, KOI8, WIN, ALT,
-  ISO_8859_5, ISO_8859_6, ISO_8859_7, ISO_8859_8
-Or do not specify an argument to the option to use the default." >&5
-echo "$as_me: error: argument to --enable-multibyte must be one of:
-  SQL_ASCII, EUC_JP, EUC_CN, EUC_KR, EUC_TW, JOHAB,
-  UNICODE, MULE_INTERNAL,
-  LATIN1, LATIN2, LATIN3, LATIN4, LATIN5,
-  LATIN6, LATIN7, LATIN8, LATIN9, LATIN10,
-  WIN1256, TCVN, WIN874, KOI8, WIN, ALT,
-  ISO_8859_5, ISO_8859_6, ISO_8859_7, ISO_8859_8
-Or do not specify an argument to the option to use the default." >&2;}
-   { (exit 1); exit 1; }; };;
-  esac
-
-      ;;
-  esac
-
-else
-  enable_multibyte=no
-fi;
-
-
-if test "$enable_multibyte" = yes; then
-
+MULTIBYTE=SQL_ASCII
 
 cat >>confdefs.h <<\_ACEOF
 #define MULTIBYTE 1
 _ACEOF
 
-  echo "$as_me:$LINENO: result: yes, default $MULTIBYTE" >&5
-echo "${ECHO_T}yes, default $MULTIBYTE" >&6
-
-else
-  echo "$as_me:$LINENO: result: no" >&5
-echo "${ECHO_T}no" >&6
-fi
-
-
 
 
 #
@@ -5125,7 +5063,7 @@ echo "${ECHO_T}${python_libspec}" >&6
 fi
 
 
-##
+v##
 ## Libraries
 ##
 
@@ -12203,20 +12141,16 @@ echo "${ECHO_T}no" >&6
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 
-
-for ac_func in syslog
-do
-as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:$LINENO: checking for $ac_func" >&5
-echo $ECHO_N "checking for $ac_func... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
+echo "$as_me:$LINENO: checking for syslog" >&5
+echo $ECHO_N "checking for syslog... $ECHO_C" >&6
+if test "${ac_cv_func_syslog+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
 #line $LINENO "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char $ac_func (); below.  */
+    which can conflict with char syslog (); below.  */
 #include <assert.h>
 /* Override any gcc2 internal prototype to avoid an error.  */
 #ifdef __cplusplus
@@ -12224,7 +12158,7 @@ extern "C"
 #endif
 /* We use char because int might match the return type of a gcc2
    builtin and then its argument prototype would still apply.  */
-char $ac_func ();
+char syslog ();
 char (*f) ();
 
 #ifdef F77_DUMMY_MAIN
@@ -12239,10 +12173,10 @@ main ()
 /* The GNU C library defines this for functions which it implements
     to always fail with ENOSYS.  Some functions are actually named
     something starting with __ and the normal name is an alias.  */
-#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+#if defined (__stub_syslog) || defined (__stub___syslog)
 choke me
 #else
-f = $ac_func;
+f = syslog;
 #endif
 
   ;
@@ -12261,23 +12195,127 @@ if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
   ac_status=$?
   echo "$as_me:$LINENO: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
-  eval "$as_ac_var=yes"
+  ac_cv_func_syslog=yes
 else
   echo "$as_me: failed program was:" >&5
 cat conftest.$ac_ext >&5
-eval "$as_ac_var=no"
+ac_cv_func_syslog=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:$LINENO: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
-  cat >>confdefs.h <<_ACEOF
-#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+echo "$as_me:$LINENO: result: $ac_cv_func_syslog" >&5
+echo "${ECHO_T}$ac_cv_func_syslog" >&6
+if test $ac_cv_func_syslog = yes; then
+  if test "${ac_cv_header_syslog_h+set}" = set; then
+  echo "$as_me:$LINENO: checking for syslog.h" >&5
+echo $ECHO_N "checking for syslog.h... $ECHO_C" >&6
+if test "${ac_cv_header_syslog_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_syslog_h" >&5
+echo "${ECHO_T}$ac_cv_header_syslog_h" >&6
+else
+  # Is the header compilable?
+echo "$as_me:$LINENO: checking syslog.h usability" >&5
+echo $ECHO_N "checking syslog.h usability... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+$ac_includes_default
+#include <syslog.h>
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>&5
+  ac_status=$?
+  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 $ac_status); }; }; then
+  ac_header_compiler=yes
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+ac_header_compiler=no
+fi
+rm -f conftest.$ac_objext conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_compiler" >&5
+echo "${ECHO_T}$ac_header_compiler" >&6
+
+# Is the header present?
+echo "$as_me:$LINENO: checking syslog.h presence" >&5
+echo $ECHO_N "checking syslog.h presence... $ECHO_C" >&6
+cat >conftest.$ac_ext <<_ACEOF
+#line $LINENO "configure"
+#include "confdefs.h"
+#include <syslog.h>
+_ACEOF
+if { (eval echo "$as_me:$LINENO: \"$ac_cpp conftest.$ac_ext\"") >&5
+  (eval $ac_cpp conftest.$ac_ext) 2>conftest.er1
+  ac_status=$?
+  egrep -v '^ *\+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } >/dev/null; then
+  if test -s conftest.err; then
+    ac_cpp_err=$ac_c_preproc_warn_flag
+  else
+    ac_cpp_err=
+  fi
+else
+  ac_cpp_err=yes
+fi
+if test -z "$ac_cpp_err"; then
+  ac_header_preproc=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_header_preproc=no
+fi
+rm -f conftest.err conftest.$ac_ext
+echo "$as_me:$LINENO: result: $ac_header_preproc" >&5
+echo "${ECHO_T}$ac_header_preproc" >&6
+
+# So?  What about this header?
+case $ac_header_compiler:$ac_header_preproc in
+  yes:no )
+    { echo "$as_me:$LINENO: WARNING: syslog.h: accepted by the compiler, rejected by the preprocessor!" >&5
+echo "$as_me: WARNING: syslog.h: accepted by the compiler, rejected by the preprocessor!" >&2;}
+    { echo "$as_me:$LINENO: WARNING: syslog.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: syslog.h: proceeding with the preprocessor's result" >&2;};;
+  no:yes )
+    { echo "$as_me:$LINENO: WARNING: syslog.h: present but cannot be compiled" >&5
+echo "$as_me: WARNING: syslog.h: present but cannot be compiled" >&2;}
+    { echo "$as_me:$LINENO: WARNING: syslog.h: check for missing prerequisite headers?" >&5
+echo "$as_me: WARNING: syslog.h: check for missing prerequisite headers?" >&2;}
+    { echo "$as_me:$LINENO: WARNING: syslog.h: proceeding with the preprocessor's result" >&5
+echo "$as_me: WARNING: syslog.h: proceeding with the preprocessor's result" >&2;};;
+esac
+echo "$as_me:$LINENO: checking for syslog.h" >&5
+echo $ECHO_N "checking for syslog.h... $ECHO_C" >&6
+if test "${ac_cv_header_syslog_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  ac_cv_header_syslog_h=$ac_header_preproc
+fi
+echo "$as_me:$LINENO: result: $ac_cv_header_syslog_h" >&5
+echo "${ECHO_T}$ac_cv_header_syslog_h" >&6
+
+fi
+if test $ac_cv_header_syslog_h = yes; then
+  cat >>confdefs.h <<\_ACEOF
+#define HAVE_SYSLOG 1
 _ACEOF
 
 fi
-done
+
+
+fi
 
 
 echo "$as_me:$LINENO: checking for optreset" >&5

configure.in

 dnl Process this file with autoconf to produce a configure script.
-dnl $Header: /cvsroot/pgsql/configure.in,v 1.181 2002/04/24 01:56:20 momjian Exp $
+dnl $Header: /cvsroot/pgsql/configure.in,v 1.182 2002/04/26 13:55:38 ishii Exp $
 
 dnl Developers, please strive to achieve this order:
 dnl
@@ -162,33 +162,8 @@ AC_MSG_RESULT([$enable_recode])
 #
 # Multibyte support
 #
-MULTIBYTE=
-AC_MSG_CHECKING([whether to build with multibyte character support])
-
-PGAC_ARG_OPTARG(enable, multibyte, [  --enable-multibyte      enable multibyte character support],
-[MULTIBYTE=SQL_ASCII],
-[
-  case $enableval in
-    SQL_ASCII|EUC_JP|EUC_CN|EUC_KR|EUC_TW|JOHAB|UNICODE|MULE_INTERNAL|LATIN1|LATIN2|LATIN3|LATIN4|LATIN5|LATIN6|LATIN7|LATIN8|LATIN9|LATIN10|WIN1256|TCVN|WIN874|KOI8|WIN|ALT|ISO_8859_5|ISO_8859_6|ISO_8859_7|ISO_8859_8)
-      MULTIBYTE=$enableval;;
-    *)
-      AC_MSG_ERROR(
-[argument to --enable-multibyte must be one of:
-  SQL_ASCII, EUC_JP, EUC_CN, EUC_KR, EUC_TW, JOHAB,
-  UNICODE, MULE_INTERNAL,
-  LATIN1, LATIN2, LATIN3, LATIN4, LATIN5,
-  LATIN6, LATIN7, LATIN8, LATIN9, LATIN10,
-  WIN1256, TCVN, WIN874, KOI8, WIN, ALT,
-  ISO_8859_5, ISO_8859_6, ISO_8859_7, ISO_8859_8
-Or do not specify an argument to the option to use the default.]);;
-  esac
-],
-[
-  AC_DEFINE(MULTIBYTE, 1, [Set to 1 if you want to use multibyte characters (--enable-multibyte)])
-  AC_MSG_RESULT([yes, default $MULTIBYTE])
-],
-[AC_MSG_RESULT(no)])
-
+MULTIBYTE=SQL_ASCII
+AC_DEFINE(MULTIBYTE, 1, [Set to 1 if you want to use multibyte characters (--enable-multibyte)])
 AC_SUBST(MULTIBYTE)
 
 #
@@ -694,7 +669,7 @@ if test "$with_python" = yes; then
 fi
 
 
-##
+v##
 ## Libraries
 ##
 
@@ -984,7 +959,10 @@ AC_TRY_LINK([#include <setjmp.h>],
 AC_MSG_RESULT(yes)],
             [AC_MSG_RESULT(no)])
 
-AC_CHECK_FUNCS([syslog])
+AC_CHECK_FUNC(syslog, 
+	     [AC_CHECK_HEADER(syslog.h,
+	     [AC_DEFINE(HAVE_SYSLOG, 1, [])],
+	     [])])
 
 AC_CACHE_CHECK([for optreset], pgac_cv_var_int_optreset,
 [AC_TRY_LINK([#include <unistd.h>],