diff --git a/src/backend/utils/adt/float.c b/src/backend/utils/adt/float.c
index cc45ea1860..5e4e20d257 100644
--- a/src/backend/utils/adt/float.c
+++ b/src/backend/utils/adt/float.c
@@ -7,7 +7,7 @@
  *
  *
  * IDENTIFICATION
- *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.40 1999/02/13 23:19:14 momjian Exp $
+ *	  $Header: /cvsroot/pgsql/src/backend/utils/adt/float.c,v 1.41 1999/04/20 00:26:32 tgl Exp $
  *
  *-------------------------------------------------------------------------
  */
@@ -74,10 +74,6 @@
 #define SHRT_MIN (-32768)
 #endif
 
-#ifndef NAN
-#define NAN		(0.0/0.0)
-#endif
-
 #define FORMAT			'g'		/* use "g" output format as standard
 								 * format */
 /* not sure what the following should be, but better to make it over-sufficient */
@@ -112,9 +108,8 @@ extern double rint(double x);
 
 #endif
 
-extern int	isinf(double x);
-
 #endif
+
 /* ========== USER I/O ROUTINES ========== */
 
 
diff --git a/src/config.guess b/src/config.guess
index 2960d6e0d2..2acf23080c 100755
--- a/src/config.guess
+++ b/src/config.guess
@@ -709,7 +709,7 @@ EOF
 	  (/bin/uname -X|egrep '^Machine.*Pentium' >/dev/null) \
 	    && UNAME_MACHINE=i586
 	fi
-	echo ${UNAME_MACHINE}-unixware-${UNAME_RELEASE}-${UNAME_VERSION}
+	echo ${UNAME_MACHINE}-pc-unixware${UNAME_VERSION}
 	exit 0 ;;
     pc:*:*:*)
         # uname -m prints for DJGPP always 'pc', but it prints nothing about
diff --git a/src/config.sub b/src/config.sub
index 00bea6e6aa..161fcc3606 100755
--- a/src/config.sub
+++ b/src/config.sub
@@ -175,7 +175,7 @@ case $basic_machine in
 	      | m88k-* | sparc-* | ns32k-* | fx80-* | arc-* | arm-* | c[123]* \
 	      | mips-* | pyramid-* | tron-* | a29k-* | romp-* | rs6000-* \
 	      | power-* | none-* | 580-* | cray2-* | h8300-* | i960-* \
-	      | xmp-* | ymp-* | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0-* \
+	      | xmp-* | ymp-* | hppa-* | hppa1.0-* | hppa1.1-* | hppa2.0*-* \
 	      | alpha-* | alphaev5-* | alphaev56-* | we32k-* | cydra-* \
 	      | ns16k-* | pn-* | np1-* | xps100-* | clipper-* | orion-* \
 	      | sparclite-* | pdp11-* | sh-* | powerpc-* | powerpcle-* \
@@ -692,6 +692,8 @@ case $os in
 	-svr4*)
 		os=-sysv4
 		;;
+	-unixware7*)
+		;;
 	-unixware*)
 		os=-sysv4.2uw
 		;;
diff --git a/src/configure b/src/configure
index 0f29fcb39c..b991dc6f4b 100755
--- a/src/configure
+++ b/src/configure
@@ -649,7 +649,7 @@ nextstep*) os=nextstep need_tas=no ;;
 		    *) os=unknown need_tas=no ;;
        esac ;;
    sysv4*) os=svr4 need_tas=no ;;
-   sysv5*) os=unixware need_tas=no ;;
+   unixware*) os=unixware need_tas=no ;;
 *) echo ""
    echo "*************************************************************"
    echo "configure does not currently recognize your operating system,"
@@ -856,11 +856,11 @@ if test "${with_mb+set}" = set; then
   withval="$with_mb"
   
 	case "$withval" in
-	EUC_JP|EHC_CN|EUC_KR|EUC_TW|UNICODE|MULE_INTERNAL|LATIN1|LATIN2|LATIN3|LATIN4|LATIN5|KOI8|WIN|ALT)
+	EUC_JP|EUC_CN|EUC_KR|EUC_TW|UNICODE|MULE_INTERNAL|LATIN1|LATIN2|LATIN3|LATIN4|LATIN5|KOI8|WIN|ALT)
 	    echo "$ac_t"""enabled with $withval"" 1>&6
             ;;
 	*)
-	    { echo "configure: error: *** You must supply an argument to the --with-mb option one of EUC_JP,EHC_CN,EUC_KR,EUC_TW,UNICODE,MULE_INTERNAL,LATIN1-5,KOI8,WIN,ALT" 1>&2; exit 1; }
+	    { echo "configure: error: *** You must supply an argument to the --with-mb option one of EUC_JP,EUC_CN,EUC_KR,EUC_TW,UNICODE,MULE_INTERNAL,LATIN1-5,KOI8,WIN,ALT" 1>&2; exit 1; }
 	  ;;
 	esac
 	MULTIBYTE="$withval"
@@ -4701,64 +4701,48 @@ fi
 
 echo $ac_n "checking for isinf""... $ac_c" 1>&6
 echo "configure:4704: checking for isinf" >&5
-if eval "test \"`echo '$''{'ac_cv_func_isinf'+set}'`\" = set"; then
+if eval "test \"`echo '$''{'ac_cv_func_or_macro_isinf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
 #line 4709 "configure"
 #include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char isinf(); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-/* We use char because int might match the return type of a gcc2
-    builtin and then its argument prototype would still apply.  */
-char isinf();
-
+#include <math.h>
 int 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_isinf) || defined (__stub___isinf)
-choke me
-#else
-isinf();
-#endif
-
+double x = 0.0; int res = isinf(x);
 ; return 0; }
 EOF
-if { (eval echo configure:4732: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4716: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
-  eval "ac_cv_func_isinf=yes"
+  ac_cv_func_or_macro_isinf=yes
 else
   echo "configure: failed program was:" >&5
   cat conftest.$ac_ext >&5
   rm -rf conftest*
-  eval "ac_cv_func_isinf=no"
+  ac_cv_func_or_macro_isinf=no
 fi
 rm -f conftest*
 fi
 
-if eval "test \"`echo '$ac_cv_func_'isinf`\" = yes"; then
+if [ $ac_cv_func_or_macro_isinf = yes ]; then
   echo "$ac_t""yes" 1>&6
   cat >> confdefs.h <<\EOF
 #define HAVE_ISINF 1
 EOF
 
+  ISINF=''
 else
   echo "$ac_t""no" 1>&6
-ISINF='isinf.o'
+  ISINF='isinf.o'
 fi
 
-
 echo $ac_n "checking for getrusage""... $ac_c" 1>&6
-echo "configure:4757: checking for getrusage" >&5
+echo "configure:4741: checking for getrusage" >&5
 if eval "test \"`echo '$''{'ac_cv_func_getrusage'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4762 "configure"
+#line 4746 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char getrusage(); below.  */
@@ -4781,7 +4765,7 @@ getrusage();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4785: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4769: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_getrusage=yes"
 else
@@ -4806,12 +4790,12 @@ fi
 
 
 echo $ac_n "checking for srandom""... $ac_c" 1>&6
-echo "configure:4810: checking for srandom" >&5
+echo "configure:4794: checking for srandom" >&5
 if eval "test \"`echo '$''{'ac_cv_func_srandom'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4815 "configure"
+#line 4799 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char srandom(); below.  */
@@ -4834,7 +4818,7 @@ srandom();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4838: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4822: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_srandom=yes"
 else
@@ -4859,12 +4843,12 @@ fi
 
 
 echo $ac_n "checking for gethostname""... $ac_c" 1>&6
-echo "configure:4863: checking for gethostname" >&5
+echo "configure:4847: checking for gethostname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4868 "configure"
+#line 4852 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostname(); below.  */
@@ -4887,7 +4871,7 @@ gethostname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4891: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4875: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostname=yes"
 else
@@ -4912,12 +4896,12 @@ fi
 
 
 echo $ac_n "checking for random""... $ac_c" 1>&6
-echo "configure:4916: checking for random" >&5
+echo "configure:4900: checking for random" >&5
 if eval "test \"`echo '$''{'ac_cv_func_random'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4921 "configure"
+#line 4905 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char random(); below.  */
@@ -4940,7 +4924,7 @@ random();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4944: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4928: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_random=yes"
 else
@@ -4965,12 +4949,12 @@ fi
 
 
 echo $ac_n "checking for inet_aton""... $ac_c" 1>&6
-echo "configure:4969: checking for inet_aton" >&5
+echo "configure:4953: checking for inet_aton" >&5
 if eval "test \"`echo '$''{'ac_cv_func_inet_aton'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 4974 "configure"
+#line 4958 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char inet_aton(); below.  */
@@ -4993,7 +4977,7 @@ inet_aton();
 
 ; return 0; }
 EOF
-if { (eval echo configure:4997: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:4981: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_inet_aton=yes"
 else
@@ -5018,12 +5002,12 @@ fi
 
 
 echo $ac_n "checking for strerror""... $ac_c" 1>&6
-echo "configure:5022: checking for strerror" >&5
+echo "configure:5006: checking for strerror" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strerror'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5027 "configure"
+#line 5011 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strerror(); below.  */
@@ -5046,7 +5030,7 @@ strerror();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5050: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5034: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strerror=yes"
 else
@@ -5072,12 +5056,12 @@ fi
 
 
 echo $ac_n "checking for strdup""... $ac_c" 1>&6
-echo "configure:5076: checking for strdup" >&5
+echo "configure:5060: checking for strdup" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strdup'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5081 "configure"
+#line 5065 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strdup(); below.  */
@@ -5100,7 +5084,7 @@ strdup();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5104: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5088: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strdup=yes"
 else
@@ -5125,12 +5109,12 @@ fi
 
 
 echo $ac_n "checking for strtol""... $ac_c" 1>&6
-echo "configure:5129: checking for strtol" >&5
+echo "configure:5113: checking for strtol" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtol'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5134 "configure"
+#line 5118 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtol(); below.  */
@@ -5153,7 +5137,7 @@ strtol();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5157: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5141: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtol=yes"
 else
@@ -5178,12 +5162,12 @@ fi
 
 
 echo $ac_n "checking for strtoul""... $ac_c" 1>&6
-echo "configure:5182: checking for strtoul" >&5
+echo "configure:5166: checking for strtoul" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strtoul'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5187 "configure"
+#line 5171 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strtoul(); below.  */
@@ -5206,7 +5190,7 @@ strtoul();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5210: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5194: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strtoul=yes"
 else
@@ -5231,12 +5215,12 @@ fi
 
 
 echo $ac_n "checking for strcasecmp""... $ac_c" 1>&6
-echo "configure:5235: checking for strcasecmp" >&5
+echo "configure:5219: checking for strcasecmp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_strcasecmp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5240 "configure"
+#line 5224 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char strcasecmp(); below.  */
@@ -5259,7 +5243,7 @@ strcasecmp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5263: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5247: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_strcasecmp=yes"
 else
@@ -5284,12 +5268,12 @@ fi
 
 
 echo $ac_n "checking for cbrt""... $ac_c" 1>&6
-echo "configure:5288: checking for cbrt" >&5
+echo "configure:5272: checking for cbrt" >&5
 if eval "test \"`echo '$''{'ac_cv_func_cbrt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5293 "configure"
+#line 5277 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char cbrt(); below.  */
@@ -5312,7 +5296,7 @@ cbrt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5316: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5300: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_cbrt=yes"
 else
@@ -5333,7 +5317,7 @@ EOF
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for cbrt in -lm""... $ac_c" 1>&6
-echo "configure:5337: checking for cbrt in -lm" >&5
+echo "configure:5321: checking for cbrt in -lm" >&5
 ac_lib_var=`echo m'_'cbrt | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5341,7 +5325,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5345 "configure"
+#line 5329 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -5352,7 +5336,7 @@ int main() {
 cbrt()
 ; return 0; }
 EOF
-if { (eval echo configure:5356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5340: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5382,12 +5366,12 @@ fi
 # this hackery with HPUXMATHLIB allows us to cope.
 HPUXMATHLIB=""
 echo $ac_n "checking for rint""... $ac_c" 1>&6
-echo "configure:5386: checking for rint" >&5
+echo "configure:5370: checking for rint" >&5
 if eval "test \"`echo '$''{'ac_cv_func_rint'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5391 "configure"
+#line 5375 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char rint(); below.  */
@@ -5410,7 +5394,7 @@ rint();
 
 ; return 0; }
 EOF
-if { (eval echo configure:5414: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5398: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_rint=yes"
 else
@@ -5435,7 +5419,7 @@ if [ -r /lib/pa1.1/libm.a ] ; then
     HPUXMATHLIB="-L /lib/pa1.1 -lm"
 fi
 	      echo $ac_n "checking for rint in -lm""... $ac_c" 1>&6
-echo "configure:5439: checking for rint in -lm" >&5
+echo "configure:5423: checking for rint in -lm" >&5
 ac_lib_var=`echo m'_'rint | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -5443,7 +5427,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lm $HPUXMATHLIB $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 5447 "configure"
+#line 5431 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -5454,7 +5438,7 @@ int main() {
 rint()
 ; return 0; }
 EOF
-if { (eval echo configure:5458: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5442: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -5485,12 +5469,12 @@ fi
 
 HAVE_LONG_INT_64=0
 echo $ac_n "checking whether 'long int' is 64 bits""... $ac_c" 1>&6
-echo "configure:5489: checking whether 'long int' is 64 bits" >&5
+echo "configure:5473: checking whether 'long int' is 64 bits" >&5
 if test "$cross_compiling" = yes; then
   echo "$ac_t""assuming not on target machine" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5494 "configure"
+#line 5478 "configure"
 #include "confdefs.h"
 typedef long int int64;
 
@@ -5518,7 +5502,7 @@ main() {
   exit(! does_int64_work());
 }
 EOF
-if { (eval echo configure:5522: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5506: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   HAVE_LONG_INT_64=1
 	 cat >> confdefs.h <<\EOF
@@ -5539,12 +5523,12 @@ fi
 HAVE_LONG_LONG_INT_64=0
 if [ $HAVE_LONG_INT_64 -eq 0 ] ; then
 echo $ac_n "checking whether 'long long int' is 64 bits""... $ac_c" 1>&6
-echo "configure:5543: checking whether 'long long int' is 64 bits" >&5
+echo "configure:5527: checking whether 'long long int' is 64 bits" >&5
 if test "$cross_compiling" = yes; then
   echo "$ac_t""assuming not on target machine" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 5548 "configure"
+#line 5532 "configure"
 #include "confdefs.h"
 typedef long long int int64;
 
@@ -5572,7 +5556,7 @@ main() {
   exit(! does_int64_work());
 }
 EOF
-if { (eval echo configure:5576: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5560: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   HAVE_LONG_LONG_INT_64=1
 	 cat >> confdefs.h <<\EOF
@@ -5595,7 +5579,7 @@ fi
 if [ $HAVE_LONG_LONG_INT_64 -eq 1 ] ; then
   if [ x$SNPRINTF = x ] ; then
     echo $ac_n "checking whether snprintf handles 'long long int' as %lld""... $ac_c" 1>&6
-echo "configure:5599: checking whether snprintf handles 'long long int' as %lld" >&5
+echo "configure:5583: checking whether snprintf handles 'long long int' as %lld" >&5
     if test "$cross_compiling" = yes; then
    echo "$ac_t""assuming not on target machine" 1>&6
 	# Force usage of our own snprintf, since we cannot test foreign snprintf
@@ -5604,7 +5588,7 @@ echo "configure:5599: checking whether snprintf handles 'long long int' as %lld"
   
 else
   cat > conftest.$ac_ext <<EOF
-#line 5608 "configure"
+#line 5592 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 typedef long long int int64;
@@ -5631,7 +5615,7 @@ main() {
   exit(! does_int64_snprintf_work());
 }
 EOF
-if { (eval echo configure:5635: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5619: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
    echo "$ac_t""yes" 1>&6
 	  INT64_FORMAT='"%lld"'
@@ -5642,7 +5626,7 @@ else
   rm -fr conftest*
    echo "$ac_t""no" 1>&6
     echo $ac_n "checking whether snprintf handles 'long long int' as %qd""... $ac_c" 1>&6
-echo "configure:5646: checking whether snprintf handles 'long long int' as %qd" >&5 
+echo "configure:5630: checking whether snprintf handles 'long long int' as %qd" >&5 
     if test "$cross_compiling" = yes; then
    echo "$ac_t""assuming not on target machine" 1>&6
 	# Force usage of our own snprintf, since we cannot test foreign snprintf
@@ -5651,7 +5635,7 @@ echo "configure:5646: checking whether snprintf handles 'long long int' as %qd"
   
 else
   cat > conftest.$ac_ext <<EOF
-#line 5655 "configure"
+#line 5639 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 typedef long long int int64;
@@ -5678,7 +5662,7 @@ main() {
   exit(! does_int64_snprintf_work());
 }
 EOF
-if { (eval echo configure:5682: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5666: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
    echo "$ac_t""yes" 1>&6
     INT64_FORMAT='"%qd"'
@@ -5720,7 +5704,7 @@ EOF
 
 
 echo $ac_n "checking alignment of short""... $ac_c" 1>&6
-echo "configure:5724: checking alignment of short" >&5
+echo "configure:5708: checking alignment of short" >&5
 if eval "test \"`echo '$''{'ac_cv_alignof_short'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5728,7 +5712,7 @@ else
   ac_cv_alignof_short='sizeof(short)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 5732 "configure"
+#line 5716 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; short field; } mystruct;
@@ -5740,7 +5724,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:5744: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5728: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_alignof_short=`cat conftestval`
 else
@@ -5760,7 +5744,7 @@ EOF
 
 
 echo $ac_n "checking alignment of int""... $ac_c" 1>&6
-echo "configure:5764: checking alignment of int" >&5
+echo "configure:5748: checking alignment of int" >&5
 if eval "test \"`echo '$''{'ac_cv_alignof_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5768,7 +5752,7 @@ else
   ac_cv_alignof_int='sizeof(int)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 5772 "configure"
+#line 5756 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; int field; } mystruct;
@@ -5780,7 +5764,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:5784: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5768: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_alignof_int=`cat conftestval`
 else
@@ -5800,7 +5784,7 @@ EOF
 
 
 echo $ac_n "checking alignment of long""... $ac_c" 1>&6
-echo "configure:5804: checking alignment of long" >&5
+echo "configure:5788: checking alignment of long" >&5
 if eval "test \"`echo '$''{'ac_cv_alignof_long'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5808,7 +5792,7 @@ else
   ac_cv_alignof_long='sizeof(long)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 5812 "configure"
+#line 5796 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; long field; } mystruct;
@@ -5820,7 +5804,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:5824: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5808: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_alignof_long=`cat conftestval`
 else
@@ -5841,7 +5825,7 @@ EOF
 
 if [ $HAVE_LONG_LONG_INT_64 -eq 1 ] ; then
   echo $ac_n "checking alignment of long long int""... $ac_c" 1>&6
-echo "configure:5845: checking alignment of long long int" >&5
+echo "configure:5829: checking alignment of long long int" >&5
 if eval "test \"`echo '$''{'ac_cv_alignof_long_long_int'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5849,7 +5833,7 @@ else
   ac_cv_alignof_long_long_int='sizeof(long long int)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 5853 "configure"
+#line 5837 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; long long int field; } mystruct;
@@ -5861,7 +5845,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:5865: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5849: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_alignof_long_long_int=`cat conftestval`
 else
@@ -5882,7 +5866,7 @@ EOF
 
 fi
 echo $ac_n "checking alignment of double""... $ac_c" 1>&6
-echo "configure:5886: checking alignment of double" >&5
+echo "configure:5870: checking alignment of double" >&5
 if eval "test \"`echo '$''{'ac_cv_alignof_double'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -5890,7 +5874,7 @@ else
   ac_cv_alignof_double='sizeof(double)'
 else
   cat > conftest.$ac_ext <<EOF
-#line 5894 "configure"
+#line 5878 "configure"
 #include "confdefs.h"
 #include <stdio.h>
 struct { char filler; double field; } mystruct;
@@ -5902,7 +5886,7 @@ main()
   exit(0);
 }
 EOF
-if { (eval echo configure:5906: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
+if { (eval echo configure:5890: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext} && (./conftest; exit) 2>/dev/null
 then
   ac_cv_alignof_double=`cat conftestval`
 else
@@ -5944,9 +5928,9 @@ EOF
 
 
 echo $ac_n "checking for POSIX signal interface""... $ac_c" 1>&6
-echo "configure:5948: checking for POSIX signal interface" >&5
+echo "configure:5932: checking for POSIX signal interface" >&5
 cat > conftest.$ac_ext <<EOF
-#line 5950 "configure"
+#line 5934 "configure"
 #include "confdefs.h"
 #include <signal.h>
 int main() {
@@ -5956,7 +5940,7 @@ act.sa_flags = SA_RESTART;
 sigaction(0, &act, &oact);
 ; return 0; }
 EOF
-if { (eval echo configure:5960: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:5944: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   cat >> confdefs.h <<\EOF
 #define USE_POSIX_SIGNALS 1
@@ -5980,7 +5964,7 @@ then
 	# Extract the first word of "tclsh", so it can be a program name with args.
 set dummy tclsh; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:5984: checking for $ac_word" >&5
+echo "configure:5968: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_TCLSH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6017,7 +6001,7 @@ fi
 		# Extract the first word of "tcl", so it can be a program name with args.
 set dummy tcl; ac_word=$2
 echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
-echo "configure:6021: checking for $ac_word" >&5
+echo "configure:6005: checking for $ac_word" >&5
 if eval "test \"`echo '$''{'ac_cv_path_TCLSH'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -6060,7 +6044,7 @@ fi
 if test "$USE_TCL" = true
 then
 	echo $ac_n "checking for tclConfig.sh""... $ac_c" 1>&6
-echo "configure:6064: checking for tclConfig.sh" >&5
+echo "configure:6048: checking for tclConfig.sh" >&5
 	TCL_CONFIG_SH=
 	library_dirs=
 	if test -z "$TCL_DIRS"
@@ -6089,7 +6073,7 @@ USE_TK=$USE_TCL		# If TCL is disabled, disable TK
 if test "$USE_TK" = true
 then
 	echo $ac_n "checking for tkConfig.sh""... $ac_c" 1>&6
-echo "configure:6093: checking for tkConfig.sh" >&5
+echo "configure:6077: checking for tkConfig.sh" >&5
 	TK_CONFIG_SH=
 	# library_dirs are set in the check for TCL
 	for dir in $library_dirs
@@ -6126,7 +6110,7 @@ if test "$USE_X" = true; then
 # 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:6130: checking for X" >&5
+echo "configure:6114: checking for X" >&5
 
 # Check whether --with-x or --without-x was given.
 if test "${with_x+set}" = set; then
@@ -6188,12 +6172,12 @@ if test "$ac_x_includes" = NO; then
 
   # First, try using that file with no special directory specified.
 cat > conftest.$ac_ext <<EOF
-#line 6192 "configure"
+#line 6176 "configure"
 #include "confdefs.h"
 #include <$x_direct_test_include>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:6197: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:6181: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
 ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
 if test -z "$ac_err"; then
   rm -rf conftest*
@@ -6262,14 +6246,14 @@ if test "$ac_x_libraries" = NO; then
   ac_save_LIBS="$LIBS"
   LIBS="-l$x_direct_test_library $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6266 "configure"
+#line 6250 "configure"
 #include "confdefs.h"
 
 int main() {
 ${x_direct_test_function}()
 ; return 0; }
 EOF
-if { (eval echo configure:6273: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6257: \"$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.
@@ -6375,17 +6359,17 @@ else
     case "`(uname -sr) 2>/dev/null`" in
     "SunOS 5"*)
       echo $ac_n "checking whether -R must be followed by a space""... $ac_c" 1>&6
-echo "configure:6379: checking whether -R must be followed by a space" >&5
+echo "configure:6363: checking whether -R must be followed by a space" >&5
       ac_xsave_LIBS="$LIBS"; LIBS="$LIBS -R$x_libraries"
       cat > conftest.$ac_ext <<EOF
-#line 6382 "configure"
+#line 6366 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6389: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6373: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_R_nospace=yes
 else
@@ -6401,14 +6385,14 @@ rm -f conftest*
       else
 	LIBS="$ac_xsave_LIBS -R $x_libraries"
 	cat > conftest.$ac_ext <<EOF
-#line 6405 "configure"
+#line 6389 "configure"
 #include "confdefs.h"
 
 int main() {
 
 ; return 0; }
 EOF
-if { (eval echo configure:6412: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6396: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   ac_R_space=yes
 else
@@ -6440,7 +6424,7 @@ rm -f conftest*
     # libraries were built with DECnet support.  And karl@cs.umb.edu says
     # the Alpha needs dnet_stub (dnet does not exist).
     echo $ac_n "checking for dnet_ntoa in -ldnet""... $ac_c" 1>&6
-echo "configure:6444: checking for dnet_ntoa in -ldnet" >&5
+echo "configure:6428: checking for dnet_ntoa in -ldnet" >&5
 ac_lib_var=`echo dnet'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6448,7 +6432,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6452 "configure"
+#line 6436 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6459,7 +6443,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:6463: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6447: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6481,7 +6465,7 @@ fi
 
     if test $ac_cv_lib_dnet_dnet_ntoa = no; then
       echo $ac_n "checking for dnet_ntoa in -ldnet_stub""... $ac_c" 1>&6
-echo "configure:6485: checking for dnet_ntoa in -ldnet_stub" >&5
+echo "configure:6469: checking for dnet_ntoa in -ldnet_stub" >&5
 ac_lib_var=`echo dnet_stub'_'dnet_ntoa | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6489,7 +6473,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-ldnet_stub  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6493 "configure"
+#line 6477 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6500,7 +6484,7 @@ int main() {
 dnet_ntoa()
 ; return 0; }
 EOF
-if { (eval echo configure:6504: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6488: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6529,12 +6513,12 @@ fi
     # The nsl library prevents programs from opening the X display
     # on Irix 5.2, according to dickey@clark.net.
     echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:6533: checking for gethostbyname" >&5
+echo "configure:6517: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6538 "configure"
+#line 6522 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -6557,7 +6541,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6561: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6545: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -6578,7 +6562,7 @@ fi
 
     if test $ac_cv_func_gethostbyname = no; then
       echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:6582: checking for gethostbyname in -lnsl" >&5
+echo "configure:6566: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6586,7 +6570,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6590 "configure"
+#line 6574 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6597,7 +6581,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:6601: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6585: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6627,12 +6611,12 @@ fi
     # -lsocket must be given before -lnsl if both are needed.
     # We assume that if connect needs -lnsl, so does gethostbyname.
     echo $ac_n "checking for connect""... $ac_c" 1>&6
-echo "configure:6631: checking for connect" >&5
+echo "configure:6615: checking for connect" >&5
 if eval "test \"`echo '$''{'ac_cv_func_connect'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6636 "configure"
+#line 6620 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char connect(); below.  */
@@ -6655,7 +6639,7 @@ connect();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6659: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6643: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_connect=yes"
 else
@@ -6676,7 +6660,7 @@ fi
 
     if test $ac_cv_func_connect = no; then
       echo $ac_n "checking for connect in -lsocket""... $ac_c" 1>&6
-echo "configure:6680: checking for connect in -lsocket" >&5
+echo "configure:6664: checking for connect in -lsocket" >&5
 ac_lib_var=`echo socket'_'connect | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6684,7 +6668,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6688 "configure"
+#line 6672 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6695,7 +6679,7 @@ int main() {
 connect()
 ; return 0; }
 EOF
-if { (eval echo configure:6699: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6719,12 +6703,12 @@ fi
 
     # gomez@mi.uni-erlangen.de says -lposix is necessary on A/UX.
     echo $ac_n "checking for remove""... $ac_c" 1>&6
-echo "configure:6723: checking for remove" >&5
+echo "configure:6707: checking for remove" >&5
 if eval "test \"`echo '$''{'ac_cv_func_remove'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6728 "configure"
+#line 6712 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char remove(); below.  */
@@ -6747,7 +6731,7 @@ remove();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6751: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6735: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_remove=yes"
 else
@@ -6768,7 +6752,7 @@ fi
 
     if test $ac_cv_func_remove = no; then
       echo $ac_n "checking for remove in -lposix""... $ac_c" 1>&6
-echo "configure:6772: checking for remove in -lposix" >&5
+echo "configure:6756: checking for remove in -lposix" >&5
 ac_lib_var=`echo posix'_'remove | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6776,7 +6760,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lposix  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6780 "configure"
+#line 6764 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6787,7 +6771,7 @@ int main() {
 remove()
 ; return 0; }
 EOF
-if { (eval echo configure:6791: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6775: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6811,12 +6795,12 @@ fi
 
     # BSDI BSD/OS 2.1 needs -lipc for XOpenDisplay.
     echo $ac_n "checking for shmat""... $ac_c" 1>&6
-echo "configure:6815: checking for shmat" >&5
+echo "configure:6799: checking for shmat" >&5
 if eval "test \"`echo '$''{'ac_cv_func_shmat'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 6820 "configure"
+#line 6804 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char shmat(); below.  */
@@ -6839,7 +6823,7 @@ shmat();
 
 ; return 0; }
 EOF
-if { (eval echo configure:6843: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6827: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_func_shmat=yes"
 else
@@ -6860,7 +6844,7 @@ fi
 
     if test $ac_cv_func_shmat = no; then
       echo $ac_n "checking for shmat in -lipc""... $ac_c" 1>&6
-echo "configure:6864: checking for shmat in -lipc" >&5
+echo "configure:6848: checking for shmat in -lipc" >&5
 ac_lib_var=`echo ipc'_'shmat | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6868,7 +6852,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lipc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6872 "configure"
+#line 6856 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6879,7 +6863,7 @@ int main() {
 shmat()
 ; return 0; }
 EOF
-if { (eval echo configure:6883: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6867: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6912,7 +6896,7 @@ fi
   # libraries we check for below, so use a different variable.
   #  --interran@uluru.Stanford.EDU, kb@cs.umb.edu.
   echo $ac_n "checking for IceConnectionNumber in -lICE""... $ac_c" 1>&6
-echo "configure:6916: checking for IceConnectionNumber in -lICE" >&5
+echo "configure:6900: checking for IceConnectionNumber in -lICE" >&5
 ac_lib_var=`echo ICE'_'IceConnectionNumber | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6920,7 +6904,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lICE $X_EXTRA_LIBS $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6924 "configure"
+#line 6908 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6931,7 +6915,7 @@ int main() {
 IceConnectionNumber()
 ; return 0; }
 EOF
-if { (eval echo configure:6935: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6919: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -6964,7 +6948,7 @@ fi
 	
 	X11_LIBS=""
 	echo $ac_n "checking for XOpenDisplay in -lX11""... $ac_c" 1>&6
-echo "configure:6968: checking for XOpenDisplay in -lX11" >&5
+echo "configure:6952: checking for XOpenDisplay in -lX11" >&5
 ac_lib_var=`echo X11'_'XOpenDisplay | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -6972,7 +6956,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lX11 ${X_PRE_LIBS} $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 6976 "configure"
+#line 6960 "configure"
 #include "confdefs.h"
 /* Override any gcc2 internal prototype to avoid an error.  */
 /* We use char because int might match the return type of a gcc2
@@ -6983,7 +6967,7 @@ int main() {
 XOpenDisplay()
 ; return 0; }
 EOF
-if { (eval echo configure:6987: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+if { (eval echo configure:6971: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -7030,17 +7014,17 @@ then
 	PWD_INCDIR=no
 	ac_safe=`echo "pwd.h" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for pwd.h""... $ac_c" 1>&6
-echo "configure:7034: checking for pwd.h" >&5
+echo "configure:7018: checking for pwd.h" >&5
 if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 7039 "configure"
+#line 7023 "configure"
 #include "confdefs.h"
 #include <pwd.h>
 EOF
 ac_try="$ac_cpp conftest.$ac_ext >/dev/null 2>conftest.out"
-{ (eval echo configure:7044: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+{ (eval echo configure:7028: \"$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*
diff --git a/src/configure.in b/src/configure.in
index 7985527b60..311e4c558d 100644
--- a/src/configure.in
+++ b/src/configure.in
@@ -44,7 +44,7 @@ nextstep*) os=nextstep need_tas=no ;;
 		    *) os=unknown need_tas=no ;;
        esac ;;
    sysv4*) os=svr4 need_tas=no ;;
-   sysv5*) os=unixware need_tas=no ;;
+   unixware*) os=unixware need_tas=no ;;
 *) echo ""
    echo "*************************************************************"
    echo "configure does not currently recognize your operating system,"
@@ -674,9 +674,22 @@ AC_CHECK_FUNC(vsnprintf,
 	      AC_DEFINE(HAVE_VSNPRINTF),
 	      SNPRINTF='snprintf.o')
 AC_SUBST(SNPRINTF)
-AC_CHECK_FUNC(isinf,
-	      AC_DEFINE(HAVE_ISINF),
-	      ISINF='isinf.o')
+dnl do this one the hard way in case isinf() is a macro
+AC_MSG_CHECKING(for isinf)
+AC_CACHE_VAL(ac_cv_func_or_macro_isinf,
+[AC_TRY_LINK(
+[#include <math.h>],
+[double x = 0.0; int res = isinf(x);],
+[ac_cv_func_or_macro_isinf=yes],
+[ac_cv_func_or_macro_isinf=no])])
+if [[ $ac_cv_func_or_macro_isinf = yes ]]; then
+  AC_MSG_RESULT(yes)
+  AC_DEFINE(HAVE_ISINF)
+  ISINF=''
+else
+  AC_MSG_RESULT(no)
+  ISINF='isinf.o'
+fi
 AC_SUBST(ISINF)
 AC_CHECK_FUNC(getrusage,
 	      AC_DEFINE(HAVE_GETRUSAGE),