diff --git a/CHANGES b/CHANGES
index 8da9b97..84d655e 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,11 +1,14 @@
--- $MawkId: CHANGES,v 1.78 2009/12/16 01:03:10 tom Exp $
+-- $MawkId: CHANGES,v 1.79 2009/12/16 09:35:17 tom Exp $
 
 Changes by Thomas E Dickey <dickey@invisible-island.net>
 
-20091215
+20091216
 	+ bump version to 1.3.4
 
-	+ add check for floating-point underflow exceptions
+	+ add configure check for functions used for pipe/system calls, e.g.,
+	  for MinGW where these are absent.
+
+	+ add runtime check for floating-point underflow exceptions
 
 	+ fix an old 1.3.3 bug in re_split(), which did not check properly for
 	  the end of buffer; this broke on Tru64.
diff --git a/MANIFEST b/MANIFEST
index 5dc81ca..beccd96 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -1,4 +1,4 @@
-MANIFEST for mawk, version t20091213d
+MANIFEST for mawk, version t20091213e
 --------------------------------------------------------------------------------
 MANIFEST                        this file
 ACKNOWLEDGMENT                  acknowledgements
diff --git a/bi_funct.c b/bi_funct.c
index d4ba4d6..b6a1bd3 100644
--- a/bi_funct.c
+++ b/bi_funct.c
@@ -10,7 +10,7 @@ the GNU General Public License, version 2, 1991.
 ********************************************/
 
 /*
- * $MawkId: bi_funct.c,v 1.20 2009/12/13 19:26:02 Jonathan.Nieder Exp $
+ * $MawkId: bi_funct.c,v 1.21 2009/12/16 09:54:37 tom Exp $
  * @Log: bi_funct.c,v @
  * Revision 1.9  1996/01/14  17:16:11  mike
  * flush_all_output() before system()
@@ -664,11 +664,10 @@ bi_fflush(CELL * sp)
     return sp;
 }
 
-#ifdef   HAVE_REAL_PIPES
-
 CELL *
-bi_system(CELL * sp)
+bi_system(CELL * sp GCC_UNUSED)
 {
+#ifdef HAVE_REAL_PIPES
     int pid;
     unsigned ret_val;
 
@@ -699,15 +698,7 @@ bi_system(CELL * sp)
     sp->type = C_DOUBLE;
     sp->dval = (double) ret_val;
     return sp;
-}
-
-#endif /* HAVE_REAL_PIPES */
-
-#ifdef   MSDOS
-
-CELL *
-bi_system(CELL * sp)
-{
+#elif defined(MSDOS)
     int retval;
 
     if (sp->type < C_STRING)
@@ -717,9 +708,10 @@ bi_system(CELL * sp)
     sp->type = C_DOUBLE;
     sp->dval = (double) retval;
     return sp;
-}
-
+#else
+    return 0;
 #endif
+}
 
 /*  getline()  */
 
diff --git a/config_h.in b/config_h.in
index a86a371..2066971 100644
--- a/config_h.in
+++ b/config_h.in
@@ -1,5 +1,5 @@
 /*
- * $MawkId: config_h.in,v 1.10 2009/12/15 01:40:42 tom Exp $
+ * $MawkId: config_h.in,v 1.11 2009/12/16 09:39:07 tom Exp $
  * vile:cmode
  * template for config.h
  */
@@ -12,10 +12,14 @@
 #undef GCC_SCANF
 #undef GCC_SCANFLIKE
 #undef GCC_UNUSED
+#undef HAVE_FORK
+#undef HAVE_PIPE
 #undef HAVE_REAL_PIPES
 #undef HAVE_SIGACTION
 #undef HAVE_SIGINFO_H
 #undef HAVE_STRTOD_OVF_BUG
+#undef HAVE_SYS_WAIT_H
+#undef HAVE_WAIT
 #undef LOCALE
 #undef MAX__INT
 #undef MAX__LONG
diff --git a/configure b/configure
index a641eca..56be440 100755
--- a/configure
+++ b/configure
@@ -2523,11 +2523,63 @@ fi
 echo "$as_me:2523: result: $with_builtin_regex" >&5
 echo "${ECHO_T}$with_builtin_regex" >&6
 
+if test "x${with_builtin_regex}" = xno; then
+
+echo "$as_me:2528: checking for regex.h" >&5
+echo $ECHO_N "checking for regex.h... $ECHO_C" >&6
+if test "${ac_cv_header_regex_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 2534 "configure"
+#include "confdefs.h"
+#include <regex.h>
+_ACEOF
+if { (eval echo "$as_me:2538: \"$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:2544: \$? = $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 "$ac_cpp_err"; then
+  ac_cv_header_regex_h=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_header_regex_h=no
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:2563: result: $ac_cv_header_regex_h" >&5
+echo "${ECHO_T}$ac_cv_header_regex_h" >&6
+if test $ac_cv_header_regex_h = yes; then
+  cf_have_regex_h=yes
+else
+  cf_have_regex_h=no
+fi
+
+    if test "$cf_have_regex_h" != yes ; then
+	{ { echo "$as_me:2572: error: could not find regex.h" >&5
+echo "$as_me: error: could not find regex.h" >&2;}
+   { (exit 1); exit 1; }; }
+    fi
+fi
+
 for ac_prog in 'bison -y' byacc
 do
   # Extract the first word of "$ac_prog", so it can be a program name with args.
 set dummy $ac_prog; ac_word=$2
-echo "$as_me:2530: checking for $ac_word" >&5
+echo "$as_me:2582: checking for $ac_word" >&5
 echo $ECHO_N "checking for $ac_word... $ECHO_C" >&6
 if test "${ac_cv_prog_YACC+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2542,7 +2594,7 @@ for ac_dir in $ac_dummy; do
   test -z "$ac_dir" && ac_dir=.
   $as_executable_p "$ac_dir/$ac_word" || continue
 ac_cv_prog_YACC="$ac_prog"
-echo "$as_me:2545: found $ac_dir/$ac_word" >&5
+echo "$as_me:2597: found $ac_dir/$ac_word" >&5
 break
 done
 
@@ -2550,10 +2602,10 @@ fi
 fi
 YACC=$ac_cv_prog_YACC
 if test -n "$YACC"; then
-  echo "$as_me:2553: result: $YACC" >&5
+  echo "$as_me:2605: result: $YACC" >&5
 echo "${ECHO_T}$YACC" >&6
 else
-  echo "$as_me:2556: result: no" >&5
+  echo "$as_me:2608: result: no" >&5
 echo "${ECHO_T}no" >&6
 fi
 
@@ -2561,7 +2613,7 @@ fi
 done
 test -n "$YACC" || YACC="yacc"
 
-echo "$as_me:2564: checking for ${CC-cc} option to accept ANSI C" >&5
+echo "$as_me:2616: checking for ${CC-cc} option to accept ANSI C" >&5
 echo $ECHO_N "checking for ${CC-cc} option to accept ANSI C... $ECHO_C" >&6
 if test "${cf_cv_ansi_cc+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2655,7 +2707,7 @@ if test -n "$cf_new_extra_cppflags" ; then
 fi
 
 	cat >conftest.$ac_ext <<_ACEOF
-#line 2658 "configure"
+#line 2710 "configure"
 #include "confdefs.h"
 
 #ifndef CC_HAS_PROTOS
@@ -2676,16 +2728,16 @@ main ()
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:2679: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:2731: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:2682: \$? = $ac_status" >&5
+  echo "$as_me:2734: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:2685: \"$ac_try\"") >&5
+  { (eval echo "$as_me:2737: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2688: \$? = $ac_status" >&5
+  echo "$as_me:2740: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_ansi_cc="$cf_arg"; break
 else
@@ -2698,7 +2750,7 @@ CFLAGS="$cf_save_CFLAGS"
 CPPFLAGS="$cf_save_CPPFLAGS"
 
 fi
-echo "$as_me:2701: result: $cf_cv_ansi_cc" >&5
+echo "$as_me:2753: result: $cf_cv_ansi_cc" >&5
 echo "${ECHO_T}$cf_cv_ansi_cc" >&6
 
 if test "$cf_cv_ansi_cc" != "no"; then
@@ -2781,7 +2833,7 @@ fi
 fi
 
 if test "$cf_cv_ansi_cc" = "no"; then
-	{ { echo "$as_me:2784: error: Your compiler does not appear to recognize prototypes.
+	{ { echo "$as_me:2836: error: Your compiler does not appear to recognize prototypes.
 You have the following choices:
 	a. adjust your compiler options
 	b. get an up-to-date compiler
@@ -2794,7 +2846,7 @@ You have the following choices:
    { (exit 1); exit 1; }; }
 fi
 
-echo "$as_me:2797: checking if $CC -U and -D options work together" >&5
+echo "$as_me:2849: checking if $CC -U and -D options work together" >&5
 echo $ECHO_N "checking if $CC -U and -D options work together... $ECHO_C" >&6
 if test "${cf_cv_cc_u_d_options+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -2803,7 +2855,7 @@ else
 	cf_save_CPPFLAGS="$CPPFLAGS"
 	CPPFLAGS="-UU_D_OPTIONS -DU_D_OPTIONS -DD_U_OPTIONS -UD_U_OPTIONS"
 	cat >conftest.$ac_ext <<_ACEOF
-#line 2806 "configure"
+#line 2858 "configure"
 #include "confdefs.h"
 
 int
@@ -2822,16 +2874,16 @@ make a defined-error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:2825: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:2877: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:2828: \$? = $ac_status" >&5
+  echo "$as_me:2880: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:2831: \"$ac_try\"") >&5
+  { (eval echo "$as_me:2883: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2834: \$? = $ac_status" >&5
+  echo "$as_me:2886: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
 
 	cf_cv_cc_u_d_options=yes
@@ -2845,7 +2897,7 @@ rm -f conftest.$ac_objext conftest.$ac_ext
 	CPPFLAGS="$cf_save_CPPFLAGS"
 
 fi
-echo "$as_me:2848: result: $cf_cv_cc_u_d_options" >&5
+echo "$as_me:2900: result: $cf_cv_cc_u_d_options" >&5
 echo "${ECHO_T}$cf_cv_cc_u_d_options" >&6
 
 cf_XOPEN_SOURCE=500
@@ -2874,14 +2926,14 @@ irix[56].*) #(vi
 	;;
 linux*|gnu*|mint*|k*bsd*-gnu) #(vi
 
-echo "$as_me:2877: checking if we must define _GNU_SOURCE" >&5
+echo "$as_me:2929: checking if we must define _GNU_SOURCE" >&5
 echo $ECHO_N "checking if we must define _GNU_SOURCE... $ECHO_C" >&6
 if test "${cf_cv_gnu_source+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 2884 "configure"
+#line 2936 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -2896,16 +2948,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:2899: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:2951: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:2902: \$? = $ac_status" >&5
+  echo "$as_me:2954: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:2905: \"$ac_try\"") >&5
+  { (eval echo "$as_me:2957: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2908: \$? = $ac_status" >&5
+  echo "$as_me:2960: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_gnu_source=no
 else
@@ -2914,7 +2966,7 @@ cat conftest.$ac_ext >&5
 cf_save="$CPPFLAGS"
 	 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 	 cat >conftest.$ac_ext <<_ACEOF
-#line 2917 "configure"
+#line 2969 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -2929,16 +2981,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:2932: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:2984: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:2935: \$? = $ac_status" >&5
+  echo "$as_me:2987: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:2938: \"$ac_try\"") >&5
+  { (eval echo "$as_me:2990: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:2941: \$? = $ac_status" >&5
+  echo "$as_me:2993: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_gnu_source=no
 else
@@ -2953,7 +3005,7 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
-echo "$as_me:2956: result: $cf_cv_gnu_source" >&5
+echo "$as_me:3008: result: $cf_cv_gnu_source" >&5
 echo "${ECHO_T}$cf_cv_gnu_source" >&6
 test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
 
@@ -2980,14 +3032,14 @@ solaris*) #(vi
 	CPPFLAGS="$CPPFLAGS -D__EXTENSIONS__"
 	;;
 *)
-	echo "$as_me:2983: checking if we should define _XOPEN_SOURCE" >&5
+	echo "$as_me:3035: checking if we should define _XOPEN_SOURCE" >&5
 echo $ECHO_N "checking if we should define _XOPEN_SOURCE... $ECHO_C" >&6
 if test "${cf_cv_xopen_source+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 	cat >conftest.$ac_ext <<_ACEOF
-#line 2990 "configure"
+#line 3042 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -3002,16 +3054,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3005: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3057: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3008: \$? = $ac_status" >&5
+  echo "$as_me:3060: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3011: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3063: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3014: \$? = $ac_status" >&5
+  echo "$as_me:3066: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_xopen_source=no
 else
@@ -3020,7 +3072,7 @@ cat conftest.$ac_ext >&5
 cf_save="$CPPFLAGS"
 	 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
 	 cat >conftest.$ac_ext <<_ACEOF
-#line 3023 "configure"
+#line 3075 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -3035,16 +3087,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3038: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3090: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3041: \$? = $ac_status" >&5
+  echo "$as_me:3093: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3044: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3096: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3047: \$? = $ac_status" >&5
+  echo "$as_me:3099: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_xopen_source=no
 else
@@ -3059,7 +3111,7 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
-echo "$as_me:3062: result: $cf_cv_xopen_source" >&5
+echo "$as_me:3114: result: $cf_cv_xopen_source" >&5
 echo "${ECHO_T}$cf_cv_xopen_source" >&6
 	if test "$cf_cv_xopen_source" != no ; then
 
@@ -3093,16 +3145,16 @@ cf_trim_CPPFLAGS=`echo "$cf_save_CPPFLAGS" | \
 	sed	-e 's/-[UD]_POSIX_C_SOURCE\(=[^ 	]*\)\?[ 	]/ /g' \
 		-e 's/-[UD]_POSIX_C_SOURCE\(=[^ 	]*\)\?$//g'`
 
-echo "$as_me:3096: checking if we should define _POSIX_C_SOURCE" >&5
+echo "$as_me:3148: checking if we should define _POSIX_C_SOURCE" >&5
 echo $ECHO_N "checking if we should define _POSIX_C_SOURCE... $ECHO_C" >&6
 if test "${cf_cv_posix_c_source+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-echo "${as_me-configure}:3102: testing if the symbol is already defined go no further ..." 1>&5
+echo "${as_me-configure}:3154: testing if the symbol is already defined go no further ..." 1>&5
 
 	cat >conftest.$ac_ext <<_ACEOF
-#line 3105 "configure"
+#line 3157 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -3117,16 +3169,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3120: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3172: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3123: \$? = $ac_status" >&5
+  echo "$as_me:3175: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3126: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3178: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3129: \$? = $ac_status" >&5
+  echo "$as_me:3181: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_posix_c_source=no
 else
@@ -3147,7 +3199,7 @@ cf_want_posix_source=no
 	 esac
 	 if test "$cf_want_posix_source" = yes ; then
 		cat >conftest.$ac_ext <<_ACEOF
-#line 3150 "configure"
+#line 3202 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -3162,16 +3214,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3165: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3217: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3168: \$? = $ac_status" >&5
+  echo "$as_me:3220: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3171: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3223: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3174: \$? = $ac_status" >&5
+  echo "$as_me:3226: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
@@ -3182,15 +3234,15 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 	 fi
 
-echo "${as_me-configure}:3185: testing ifdef from value $cf_POSIX_C_SOURCE ..." 1>&5
+echo "${as_me-configure}:3237: testing ifdef from value $cf_POSIX_C_SOURCE ..." 1>&5
 
 	 CFLAGS="$cf_trim_CFLAGS"
 	 CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
 
-echo "${as_me-configure}:3190: testing if the second compile does not leave our definition intact error ..." 1>&5
+echo "${as_me-configure}:3242: testing if the second compile does not leave our definition intact error ..." 1>&5
 
 	 cat >conftest.$ac_ext <<_ACEOF
-#line 3193 "configure"
+#line 3245 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -3205,16 +3257,16 @@ make an error
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3208: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3260: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3211: \$? = $ac_status" >&5
+  echo "$as_me:3263: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3214: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3266: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3217: \$? = $ac_status" >&5
+  echo "$as_me:3269: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   :
 else
@@ -3230,7 +3282,7 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
-echo "$as_me:3233: result: $cf_cv_posix_c_source" >&5
+echo "$as_me:3285: result: $cf_cv_posix_c_source" >&5
 echo "${ECHO_T}$cf_cv_posix_c_source" >&6
 
 if test "$cf_cv_posix_c_source" != no ; then
@@ -3253,23 +3305,23 @@ if test "${cf_cv_size_t_SIZE_T_STDDEF_H+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-	echo "$as_me:3256: checking for stddef.h" >&5
+	echo "$as_me:3308: checking for stddef.h" >&5
 echo $ECHO_N "checking for stddef.h... $ECHO_C" >&6
 if test "${ac_cv_header_stddef_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3262 "configure"
+#line 3314 "configure"
 #include "confdefs.h"
 #include <stddef.h>
 _ACEOF
-if { (eval echo "$as_me:3266: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:3318: \"$ac_cpp conftest.$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:3272: \$? = $ac_status" >&5
+  echo "$as_me:3324: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3288,21 +3340,21 @@ else
 fi
 rm -f conftest.err conftest.$ac_ext
 fi
-echo "$as_me:3291: result: $ac_cv_header_stddef_h" >&5
+echo "$as_me:3343: result: $ac_cv_header_stddef_h" >&5
 echo "${ECHO_T}$ac_cv_header_stddef_h" >&6
 if test $ac_cv_header_stddef_h = yes; then
   cf_mawk_check_size=ok
 fi
 
 	if test "x$cf_mawk_check_size" = xok ; then
-		echo "$as_me:3298: checking if size_t is declared in stddef.h" >&5
+		echo "$as_me:3350: checking if size_t is declared in stddef.h" >&5
 echo $ECHO_N "checking if size_t is declared in stddef.h... $ECHO_C" >&6
 if test "${cf_cv_size_t_SIZE_T_STDDEF_H+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 			cat >conftest.$ac_ext <<_ACEOF
-#line 3305 "configure"
+#line 3357 "configure"
 #include "confdefs.h"
 #include <stddef.h>
 int
@@ -3314,16 +3366,16 @@ size_t *n
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3317: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3369: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3320: \$? = $ac_status" >&5
+  echo "$as_me:3372: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3323: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3375: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3326: \$? = $ac_status" >&5
+  echo "$as_me:3378: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_size_t_SIZE_T_STDDEF_H=yes
 else
@@ -3333,7 +3385,7 @@ cf_cv_size_t_SIZE_T_STDDEF_H=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:3336: result: $cf_cv_size_t_SIZE_T_STDDEF_H" >&5
+echo "$as_me:3388: result: $cf_cv_size_t_SIZE_T_STDDEF_H" >&5
 echo "${ECHO_T}$cf_cv_size_t_SIZE_T_STDDEF_H" >&6
 	fi
 
@@ -3354,23 +3406,23 @@ if test "${cf_cv_size_t_SIZE_T_TYPES_H+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
-	echo "$as_me:3357: checking for sys/types.h" >&5
+	echo "$as_me:3409: checking for sys/types.h" >&5
 echo $ECHO_N "checking for sys/types.h... $ECHO_C" >&6
 if test "${ac_cv_header_sys_types_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3363 "configure"
+#line 3415 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 _ACEOF
-if { (eval echo "$as_me:3367: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:3419: \"$ac_cpp conftest.$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:3373: \$? = $ac_status" >&5
+  echo "$as_me:3425: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -3389,21 +3441,21 @@ else
 fi
 rm -f conftest.err conftest.$ac_ext
 fi
-echo "$as_me:3392: result: $ac_cv_header_sys_types_h" >&5
+echo "$as_me:3444: result: $ac_cv_header_sys_types_h" >&5
 echo "${ECHO_T}$ac_cv_header_sys_types_h" >&6
 if test $ac_cv_header_sys_types_h = yes; then
   cf_mawk_check_size=ok
 fi
 
 	if test "x$cf_mawk_check_size" = xok ; then
-		echo "$as_me:3399: checking if size_t is declared in sys/types.h" >&5
+		echo "$as_me:3451: checking if size_t is declared in sys/types.h" >&5
 echo $ECHO_N "checking if size_t is declared in sys/types.h... $ECHO_C" >&6
 if test "${cf_cv_size_t_SIZE_T_TYPES_H+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 			cat >conftest.$ac_ext <<_ACEOF
-#line 3406 "configure"
+#line 3458 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 int
@@ -3415,16 +3467,16 @@ size_t *n
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3418: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3470: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3421: \$? = $ac_status" >&5
+  echo "$as_me:3473: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3424: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3476: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3427: \$? = $ac_status" >&5
+  echo "$as_me:3479: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_size_t_SIZE_T_TYPES_H=yes
 else
@@ -3434,7 +3486,7 @@ cf_cv_size_t_SIZE_T_TYPES_H=no
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:3437: result: $cf_cv_size_t_SIZE_T_TYPES_H" >&5
+echo "$as_me:3489: result: $cf_cv_size_t_SIZE_T_TYPES_H" >&5
 echo "${ECHO_T}$cf_cv_size_t_SIZE_T_TYPES_H" >&6
 	fi
 
@@ -3449,14 +3501,14 @@ EOF
 	fi
 fi
 
-echo "$as_me:3452: checking for setlocale()" >&5
+echo "$as_me:3504: checking for setlocale()" >&5
 echo $ECHO_N "checking for setlocale()... $ECHO_C" >&6
 if test "${cf_cv_locale+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
 cat >conftest.$ac_ext <<_ACEOF
-#line 3459 "configure"
+#line 3511 "configure"
 #include "confdefs.h"
 #include <locale.h>
 int
@@ -3468,16 +3520,16 @@ setlocale(LC_ALL, "")
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3471: \"$ac_link\"") >&5
+if { (eval echo "$as_me:3523: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3474: \$? = $ac_status" >&5
+  echo "$as_me:3526: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3477: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3529: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3480: \$? = $ac_status" >&5
+  echo "$as_me:3532: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_locale=yes
 else
@@ -3489,21 +3541,21 @@ rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 
 fi
 
-echo "$as_me:3492: result: $cf_cv_locale" >&5
+echo "$as_me:3544: result: $cf_cv_locale" >&5
 echo "${ECHO_T}$cf_cv_locale" >&6
 test $cf_cv_locale = yes && { cat >>confdefs.h <<\EOF
 #define LOCALE 1
 EOF
  }
 
-echo "$as_me:3499: checking if external environ is declared" >&5
+echo "$as_me:3551: checking if external environ is declared" >&5
 echo $ECHO_N "checking if external environ is declared... $ECHO_C" >&6
 if test "${cf_cv_dcl_environ+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
     cat >conftest.$ac_ext <<_ACEOF
-#line 3506 "configure"
+#line 3558 "configure"
 #include "confdefs.h"
 
 #ifdef HAVE_STDLIB_H
@@ -3519,16 +3571,16 @@ int x = (int) environ
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:3522: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:3574: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:3525: \$? = $ac_status" >&5
+  echo "$as_me:3577: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:3528: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3580: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3531: \$? = $ac_status" >&5
+  echo "$as_me:3583: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_dcl_environ=yes
 else
@@ -3539,7 +3591,7 @@ fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 
 fi
-echo "$as_me:3542: result: $cf_cv_dcl_environ" >&5
+echo "$as_me:3594: result: $cf_cv_dcl_environ" >&5
 echo "${ECHO_T}$cf_cv_dcl_environ" >&6
 
 if test "$cf_cv_dcl_environ" = no ; then
@@ -3554,14 +3606,14 @@ fi
 
 # It's possible (for near-UNIX clones) that the data doesn't exist
 
-echo "$as_me:3557: checking if external environ exists" >&5
+echo "$as_me:3609: checking if external environ exists" >&5
 echo $ECHO_N "checking if external environ exists... $ECHO_C" >&6
 if test "${cf_cv_have_environ+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
 
     cat >conftest.$ac_ext <<_ACEOF
-#line 3564 "configure"
+#line 3616 "configure"
 #include "confdefs.h"
 
 #undef environ
@@ -3576,16 +3628,16 @@ environ = 2
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3579: \"$ac_link\"") >&5
+if { (eval echo "$as_me:3631: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3582: \$? = $ac_status" >&5
+  echo "$as_me:3634: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3585: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3637: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:3588: \$? = $ac_status" >&5
+  echo "$as_me:3640: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   cf_cv_have_environ=yes
 else
@@ -3596,7 +3648,7 @@ fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 
 fi
-echo "$as_me:3599: result: $cf_cv_have_environ" >&5
+echo "$as_me:3651: result: $cf_cv_have_environ" >&5
 echo "${ECHO_T}$cf_cv_have_environ" >&6
 
 if test "$cf_cv_have_environ" = yes ; then
@@ -3609,359 +3661,16 @@ EOF
 
 fi
 
-cat >>confdefs.h <<\EOF
-#define HAVE_REAL_PIPES 1
-EOF
-
-for cf_func in fcntl.h errno.h math.h time.h stdarg.h stdlib.h string.h
-do
-
-    as_ac_Header=`echo "ac_cv_header_${cf_func}" | $as_tr_sh`
-echo "$as_me:3620: checking for ${cf_func}" >&5
-echo $ECHO_N "checking for ${cf_func}... $ECHO_C" >&6
-if eval "test \"\${$as_ac_Header+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 3626 "configure"
-#include "confdefs.h"
-#include <${cf_func}>
-_ACEOF
-if { (eval echo "$as_me:3630: \"$ac_cpp conftest.$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:3636: \$? = $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 "$ac_cpp_err"; then
-  eval "$as_ac_Header=yes"
-else
-  echo "$as_me: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  eval "$as_ac_Header=no"
-fi
-rm -f conftest.err conftest.$ac_ext
-fi
-echo "$as_me:3655: result: `eval echo '${'$as_ac_Header'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
-if test `eval echo '${'$as_ac_Header'}'` = yes; then
-  :
-else
-
-cf_check_header=`echo "NO_${cf_func}" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
-
-        cat >>confdefs.h <<\EOF
-#define $cf_check_header 1
-EOF
-
-fi
-
-done
-
-for cf_func in memcpy strchr strerror vfprintf strtod fmod matherr
-do
-
-    as_ac_var=`echo "ac_cv_func_${cf_func}" | $as_tr_sh`
-echo "$as_me:3675: checking for ${cf_func}" >&5
-echo $ECHO_N "checking for ${cf_func}... $ECHO_C" >&6
-if eval "test \"\${$as_ac_var+set}\" = set"; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 3681 "configure"
-#include "confdefs.h"
-/* System header to define __stub macros and hopefully few prototypes,
-    which can conflict with char ${cf_func} (); below.  */
-#include <assert.h>
-/* Override any gcc2 internal prototype to avoid an error.  */
-#ifdef __cplusplus
-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 ${cf_func} ();
-char (*f) ();
-
-int
-main ()
-{
-/* The GNU C library defines this for functions which it implements
-    to always fail with ENOSYS.  Some functions are actually named
-    something starting with __ and the normal name is an alias.  */
-#if defined (__stub_${cf_func}) || defined (__stub___${cf_func})
-choke me
-#else
-f = ${cf_func};
-#endif
-
-  ;
-  return 0;
-}
-_ACEOF
-rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3712: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:3715: \$? = $ac_status" >&5
-  (exit $ac_status); } &&
-         { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:3718: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:3721: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  eval "$as_ac_var=yes"
-else
-  echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-eval "$as_ac_var=no"
-fi
-rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
-fi
-echo "$as_me:3731: result: `eval echo '${'$as_ac_var'}'`" >&5
-echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
-if test `eval echo '${'$as_ac_var'}'` = yes; then
-  :
-else
-
-cf_check_func=`echo "NO_${cf_func}" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
-
-        cat >>confdefs.h <<EOF
-#define $cf_check_func 1
-EOF
-
-fi
-
-done
-
-echo "$as_me:3747: checking for limits.h" >&5
-echo $ECHO_N "checking for limits.h... $ECHO_C" >&6
-if test "${ac_cv_header_limits_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 3753 "configure"
-#include "confdefs.h"
-#include <limits.h>
-_ACEOF
-if { (eval echo "$as_me:3757: \"$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:3763: \$? = $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 "$ac_cpp_err"; then
-  ac_cv_header_limits_h=yes
-else
-  echo "$as_me: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  ac_cv_header_limits_h=no
-fi
-rm -f conftest.err conftest.$ac_ext
-fi
-echo "$as_me:3782: result: $ac_cv_header_limits_h" >&5
-echo "${ECHO_T}$ac_cv_header_limits_h" >&6
-if test $ac_cv_header_limits_h = yes; then
-  cf_limits_h=yes
-fi
-
-if test "$cf_limits_h" = yes ; then :
-else
-echo "$as_me:3790: checking for values.h" >&5
-echo $ECHO_N "checking for values.h... $ECHO_C" >&6
-if test "${ac_cv_header_values_h+set}" = set; then
-  echo $ECHO_N "(cached) $ECHO_C" >&6
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 3796 "configure"
-#include "confdefs.h"
-#include <values.h>
-_ACEOF
-if { (eval echo "$as_me:3800: \"$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:3806: \$? = $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 "$ac_cpp_err"; then
-  ac_cv_header_values_h=yes
-else
-  echo "$as_me: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  ac_cv_header_values_h=no
-fi
-rm -f conftest.err conftest.$ac_ext
-fi
-echo "$as_me:3825: result: $ac_cv_header_values_h" >&5
-echo "${ECHO_T}$ac_cv_header_values_h" >&6
-if test $ac_cv_header_values_h = yes; then
-  cf_values_h=yes
-fi
-
-   if test "$cf_values_h" = yes ; then
-   if test "$cross_compiling" = yes; then
-  { { echo "$as_me:3833: error: cannot run test program while cross compiling" >&5
-echo "$as_me: error: cannot run test program while cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 3838 "configure"
-#include "confdefs.h"
-#include <values.h>
-#include <stdio.h>
-int main()
-{   FILE *out = fopen("conftest.out", "w") ;
-	unsigned max_uint = 0;
-    if ( ! out ) exit(1) ;
-    fprintf(out, "MAX__INT  0x%x\n", MAXINT) ;
-    fprintf(out, "MAX__LONG 0x%lx\n", MAXLONG) ;
-#ifdef MAXUINT
-	max_uint = MAXUINT;	/* not likely (SunOS/Solaris lacks it) */
-#else
-	max_uint = MAXINT;
-	max_uint <<= 1;
-	max_uint |= 1;
-#endif
-    fprintf(out, "MAX__UINT 0x%lx\n", max_uint) ;
-    exit(0) ; return(0) ;
-}
-
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:3861: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:3864: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:3866: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:3869: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  cf_maxint_set=yes
-else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-{ { echo "$as_me:3876: error: C program to compute maxint and maxlong failed.
-Please send bug report to dickey@invisible-island.net." >&5
-echo "$as_me: error: C program to compute maxint and maxlong failed.
-Please send bug report to dickey@invisible-island.net." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-   fi
-if test "x$cf_maxint_set" != xyes ; then
-# compute it  --  assumes two's complement
-if test "$cross_compiling" = yes; then
-  { { echo "$as_me:3888: error: cannot run test program while cross compiling" >&5
-echo "$as_me: error: cannot run test program while cross compiling" >&2;}
-   { (exit 1); exit 1; }; }
-else
-  cat >conftest.$ac_ext <<_ACEOF
-#line 3893 "configure"
-#include "confdefs.h"
-#include <stdio.h>
-int main()
-{ int y ; unsigned yu; long yy ;
-  FILE *out ;
-
-    if ( !(out = fopen("conftest.out","w")) ) exit(1) ;
-    /* find max int and max long */
-    y = 0x1000 ;
-    while ( y > 0 ) { yu = y; y *= 2 ; }
-    fprintf(out,"MAX__INT  0x%x\n", y-1) ;
-
-	yu = yu - 1;
-	yu <<= 1;
-	yu |= 1;
-    fprintf(out,"MAX__UINT 0x%x\n", y-1) ;
-
-    yy = 0x1000 ;
-    while ( yy > 0 ) yy *= 2 ;
-    fprintf(out,"MAX__LONG 0x%lx\n", yy-1) ;
-    exit(0) ;
-    return 0 ;
- }
-_ACEOF
-rm -f conftest$ac_exeext
-if { (eval echo "$as_me:3919: \"$ac_link\"") >&5
-  (eval $ac_link) 2>&5
-  ac_status=$?
-  echo "$as_me:3922: \$? = $ac_status" >&5
-  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
-  { (eval echo "$as_me:3924: \"$ac_try\"") >&5
-  (eval $ac_try) 2>&5
-  ac_status=$?
-  echo "$as_me:3927: \$? = $ac_status" >&5
-  (exit $ac_status); }; }; then
-  :
-else
-  echo "$as_me: program exited with status $ac_status" >&5
-echo "$as_me: failed program was:" >&5
-cat conftest.$ac_ext >&5
-{ { echo "$as_me:3934: error: C program to compute maxint and maxlong failed.
-Please send bug report to dickey@invisible-island.net." >&5
-echo "$as_me: error: C program to compute maxint and maxlong failed.
-Please send bug report to dickey@invisible-island.net." >&2;}
-   { (exit 1); exit 1; }; }
-fi
-rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
-fi
-fi
-cat conftest.out | while true
-do
-	read name value
-	test -z "$name" && break
-	cat >>confdefs.h <<EOF
-#define $name $value
-EOF
-
-done
-rm -f conftest.out
-fi
-
-for ac_func in sigaction
+for ac_func in fork pipe wait
 do
 as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
-echo "$as_me:3958: checking for $ac_func" >&5
+echo "$as_me:3667: 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 $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 3964 "configure"
+#line 3673 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func (); below.  */
@@ -3992,16 +3701,16 @@ f = $ac_func;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:3995: \"$ac_link\"") >&5
+if { (eval echo "$as_me:3704: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:3998: \$? = $ac_status" >&5
+  echo "$as_me:3707: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:4001: \"$ac_try\"") >&5
+  { (eval echo "$as_me:3710: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4004: \$? = $ac_status" >&5
+  echo "$as_me:3713: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   eval "$as_ac_var=yes"
 else
@@ -4011,7 +3720,7 @@ eval "$as_ac_var=no"
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:4014: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "$as_me:3723: 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 <<EOF
@@ -4021,28 +3730,33 @@ EOF
 fi
 done
 
-test "$ac_cv_func_sigaction" = yes && sigaction=1
+test "$ac_cv_func_fork" = yes && \
+test "$ac_cv_func_pipe" = yes && \
+test "$ac_cv_func_wait" = yes && \
+cat >>confdefs.h <<\EOF
+#define HAVE_REAL_PIPES 1
+EOF
 
-for ac_header in siginfo.h
+for ac_header in sys/wait.h
 do
 as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
-echo "$as_me:4029: checking for $ac_header" >&5
+echo "$as_me:3743: checking for $ac_header" >&5
 echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
 if eval "test \"\${$as_ac_Header+set}\" = set"; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4035 "configure"
+#line 3749 "configure"
 #include "confdefs.h"
 #include <$ac_header>
 _ACEOF
-if { (eval echo "$as_me:4039: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:3753: \"$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:4045: \$? = $ac_status" >&5
+  echo "$as_me:3759: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4061,7 +3775,465 @@ else
 fi
 rm -f conftest.err conftest.$ac_ext
 fi
-echo "$as_me:4064: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "$as_me:3778: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_header" | $as_tr_cpp` 1
+EOF
+
+fi
+done
+
+for cf_func in fcntl.h errno.h math.h time.h stdarg.h stdlib.h string.h
+do
+
+    as_ac_Header=`echo "ac_cv_header_${cf_func}" | $as_tr_sh`
+echo "$as_me:3792: checking for ${cf_func}" >&5
+echo $ECHO_N "checking for ${cf_func}... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3798 "configure"
+#include "confdefs.h"
+#include <${cf_func}>
+_ACEOF
+if { (eval echo "$as_me:3802: \"$ac_cpp conftest.$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:3808: \$? = $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 "$ac_cpp_err"; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  eval "$as_ac_Header=no"
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:3827: result: `eval echo '${'$as_ac_Header'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
+if test `eval echo '${'$as_ac_Header'}'` = yes; then
+  :
+else
+
+cf_check_header=`echo "NO_${cf_func}" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
+
+        cat >>confdefs.h <<\EOF
+#define $cf_check_header 1
+EOF
+
+fi
+
+done
+
+for cf_func in memcpy strchr strerror vfprintf strtod fmod matherr
+do
+
+    as_ac_var=`echo "ac_cv_func_${cf_func}" | $as_tr_sh`
+echo "$as_me:3847: checking for ${cf_func}" >&5
+echo $ECHO_N "checking for ${cf_func}... $ECHO_C" >&6
+if eval "test \"\${$as_ac_var+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3853 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char ${cf_func} (); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+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 ${cf_func} ();
+char (*f) ();
+
+int
+main ()
+{
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_${cf_func}) || defined (__stub___${cf_func})
+choke me
+#else
+f = ${cf_func};
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:3884: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:3887: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:3890: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:3893: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_var=no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:3903: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  :
+else
+
+cf_check_func=`echo "NO_${cf_func}" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
+
+        cat >>confdefs.h <<EOF
+#define $cf_check_func 1
+EOF
+
+fi
+
+done
+
+echo "$as_me:3919: checking for limits.h" >&5
+echo $ECHO_N "checking for limits.h... $ECHO_C" >&6
+if test "${ac_cv_header_limits_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3925 "configure"
+#include "confdefs.h"
+#include <limits.h>
+_ACEOF
+if { (eval echo "$as_me:3929: \"$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:3935: \$? = $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 "$ac_cpp_err"; then
+  ac_cv_header_limits_h=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_header_limits_h=no
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:3954: result: $ac_cv_header_limits_h" >&5
+echo "${ECHO_T}$ac_cv_header_limits_h" >&6
+if test $ac_cv_header_limits_h = yes; then
+  cf_limits_h=yes
+fi
+
+if test "$cf_limits_h" = yes ; then :
+else
+echo "$as_me:3962: checking for values.h" >&5
+echo $ECHO_N "checking for values.h... $ECHO_C" >&6
+if test "${ac_cv_header_values_h+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 3968 "configure"
+#include "confdefs.h"
+#include <values.h>
+_ACEOF
+if { (eval echo "$as_me:3972: \"$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:3978: \$? = $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 "$ac_cpp_err"; then
+  ac_cv_header_values_h=yes
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  ac_cv_header_values_h=no
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:3997: result: $ac_cv_header_values_h" >&5
+echo "${ECHO_T}$ac_cv_header_values_h" >&6
+if test $ac_cv_header_values_h = yes; then
+  cf_values_h=yes
+fi
+
+   if test "$cf_values_h" = yes ; then
+   if test "$cross_compiling" = yes; then
+  { { echo "$as_me:4005: error: cannot run test program while cross compiling" >&5
+echo "$as_me: error: cannot run test program while cross compiling" >&2;}
+   { (exit 1); exit 1; }; }
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4010 "configure"
+#include "confdefs.h"
+#include <values.h>
+#include <stdio.h>
+int main()
+{   FILE *out = fopen("conftest.out", "w") ;
+	unsigned max_uint = 0;
+    if ( ! out ) exit(1) ;
+    fprintf(out, "MAX__INT  0x%x\n", MAXINT) ;
+    fprintf(out, "MAX__LONG 0x%lx\n", MAXLONG) ;
+#ifdef MAXUINT
+	max_uint = MAXUINT;	/* not likely (SunOS/Solaris lacks it) */
+#else
+	max_uint = MAXINT;
+	max_uint <<= 1;
+	max_uint |= 1;
+#endif
+    fprintf(out, "MAX__UINT 0x%lx\n", max_uint) ;
+    exit(0) ; return(0) ;
+}
+
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:4033: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4036: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:4038: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4041: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  cf_maxint_set=yes
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+{ { echo "$as_me:4048: error: C program to compute maxint and maxlong failed.
+Please send bug report to dickey@invisible-island.net." >&5
+echo "$as_me: error: C program to compute maxint and maxlong failed.
+Please send bug report to dickey@invisible-island.net." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+   fi
+if test "x$cf_maxint_set" != xyes ; then
+# compute it  --  assumes two's complement
+if test "$cross_compiling" = yes; then
+  { { echo "$as_me:4060: error: cannot run test program while cross compiling" >&5
+echo "$as_me: error: cannot run test program while cross compiling" >&2;}
+   { (exit 1); exit 1; }; }
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4065 "configure"
+#include "confdefs.h"
+#include <stdio.h>
+int main()
+{ int y ; unsigned yu; long yy ;
+  FILE *out ;
+
+    if ( !(out = fopen("conftest.out","w")) ) exit(1) ;
+    /* find max int and max long */
+    y = 0x1000 ;
+    while ( y > 0 ) { yu = y; y *= 2 ; }
+    fprintf(out,"MAX__INT  0x%x\n", y-1) ;
+
+	yu = yu - 1;
+	yu <<= 1;
+	yu |= 1;
+    fprintf(out,"MAX__UINT 0x%x\n", y-1) ;
+
+    yy = 0x1000 ;
+    while ( yy > 0 ) yy *= 2 ;
+    fprintf(out,"MAX__LONG 0x%lx\n", yy-1) ;
+    exit(0) ;
+    return 0 ;
+ }
+_ACEOF
+rm -f conftest$ac_exeext
+if { (eval echo "$as_me:4091: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4094: \$? = $ac_status" >&5
+  (exit $ac_status); } && { ac_try='./conftest$ac_exeext'
+  { (eval echo "$as_me:4096: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4099: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  :
+else
+  echo "$as_me: program exited with status $ac_status" >&5
+echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+{ { echo "$as_me:4106: error: C program to compute maxint and maxlong failed.
+Please send bug report to dickey@invisible-island.net." >&5
+echo "$as_me: error: C program to compute maxint and maxlong failed.
+Please send bug report to dickey@invisible-island.net." >&2;}
+   { (exit 1); exit 1; }; }
+fi
+rm -f core core.* *.core conftest$ac_exeext conftest.$ac_objext conftest.$ac_ext
+fi
+fi
+cat conftest.out | while true
+do
+	read name value
+	test -z "$name" && break
+	cat >>confdefs.h <<EOF
+#define $name $value
+EOF
+
+done
+rm -f conftest.out
+fi
+
+for ac_func in sigaction
+do
+as_ac_var=`echo "ac_cv_func_$ac_func" | $as_tr_sh`
+echo "$as_me:4130: 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 $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4136 "configure"
+#include "confdefs.h"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char $ac_func (); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+#ifdef __cplusplus
+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 $ac_func ();
+char (*f) ();
+
+int
+main ()
+{
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_$ac_func) || defined (__stub___$ac_func)
+choke me
+#else
+f = $ac_func;
+#endif
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:4167: \"$ac_link\"") >&5
+  (eval $ac_link) 2>&5
+  ac_status=$?
+  echo "$as_me:4170: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+         { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:4173: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:4176: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  eval "$as_ac_var=yes"
+else
+  echo "$as_me: failed program was:" >&5
+cat conftest.$ac_ext >&5
+eval "$as_ac_var=no"
+fi
+rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:4186: result: `eval echo '${'$as_ac_var'}'`" >&5
+echo "${ECHO_T}`eval echo '${'$as_ac_var'}'`" >&6
+if test `eval echo '${'$as_ac_var'}'` = yes; then
+  cat >>confdefs.h <<EOF
+#define `echo "HAVE_$ac_func" | $as_tr_cpp` 1
+EOF
+
+fi
+done
+
+test "$ac_cv_func_sigaction" = yes && sigaction=1
+
+for ac_header in siginfo.h
+do
+as_ac_Header=`echo "ac_cv_header_$ac_header" | $as_tr_sh`
+echo "$as_me:4201: checking for $ac_header" >&5
+echo $ECHO_N "checking for $ac_header... $ECHO_C" >&6
+if eval "test \"\${$as_ac_Header+set}\" = set"; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+#line 4207 "configure"
+#include "confdefs.h"
+#include <$ac_header>
+_ACEOF
+if { (eval echo "$as_me:4211: \"$ac_cpp conftest.$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:4217: \$? = $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 "$ac_cpp_err"; then
+  eval "$as_ac_Header=yes"
+else
+  echo "$as_me: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  eval "$as_ac_Header=no"
+fi
+rm -f conftest.err conftest.$ac_ext
+fi
+echo "$as_me:4236: result: `eval echo '${'$as_ac_Header'}'`" >&5
 echo "${ECHO_T}`eval echo '${'$as_ac_Header'}'`" >&6
 if test `eval echo '${'$as_ac_Header'}'` = yes; then
   cat >>confdefs.h <<EOF
@@ -4073,7 +4245,7 @@ done
 
 test "$ac_cv_header_siginfo_h" = yes && siginfo_h=1
 
-echo "$as_me:4076: checking if we should use siginfo" >&5
+echo "$as_me:4248: checking if we should use siginfo" >&5
 echo $ECHO_N "checking if we should use siginfo... $ECHO_C" >&6
 if test "${cf_cv_use_sv_siginfo+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
@@ -4086,16 +4258,16 @@ else
 fi
 
 fi
-echo "$as_me:4089: result: $cf_cv_use_sv_siginfo" >&5
+echo "$as_me:4261: result: $cf_cv_use_sv_siginfo" >&5
 echo "${ECHO_T}$cf_cv_use_sv_siginfo" >&6
 
-echo "$as_me:4092: checking return type of signal handlers" >&5
+echo "$as_me:4264: checking return type of signal handlers" >&5
 echo $ECHO_N "checking return type of signal handlers... $ECHO_C" >&6
 if test "${ac_cv_type_signal+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4098 "configure"
+#line 4270 "configure"
 #include "confdefs.h"
 #include <sys/types.h>
 #include <signal.h>
@@ -4117,16 +4289,16 @@ int i;
 }
 _ACEOF
 rm -f conftest.$ac_objext
-if { (eval echo "$as_me:4120: \"$ac_compile\"") >&5
+if { (eval echo "$as_me:4292: \"$ac_compile\"") >&5
   (eval $ac_compile) 2>&5
   ac_status=$?
-  echo "$as_me:4123: \$? = $ac_status" >&5
+  echo "$as_me:4295: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest.$ac_objext'
-  { (eval echo "$as_me:4126: \"$ac_try\"") >&5
+  { (eval echo "$as_me:4298: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4129: \$? = $ac_status" >&5
+  echo "$as_me:4301: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_type_signal=void
 else
@@ -4136,7 +4308,7 @@ ac_cv_type_signal=int
 fi
 rm -f conftest.$ac_objext conftest.$ac_ext
 fi
-echo "$as_me:4139: result: $ac_cv_type_signal" >&5
+echo "$as_me:4311: result: $ac_cv_type_signal" >&5
 echo "${ECHO_T}$ac_cv_type_signal" >&6
 
 cat >>confdefs.h <<EOF
@@ -4170,13 +4342,13 @@ EOF
 
 if test "x$cf_cv_use_sv_siginfo" = "xno"
 then
-   echo "$as_me:4173: checking for sigvec" >&5
+   echo "$as_me:4345: checking for sigvec" >&5
 echo $ECHO_N "checking for sigvec... $ECHO_C" >&6
 if test "${ac_cv_func_sigvec+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4179 "configure"
+#line 4351 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sigvec (); below.  */
@@ -4207,16 +4379,16 @@ f = sigvec;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:4210: \"$ac_link\"") >&5
+if { (eval echo "$as_me:4382: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:4213: \$? = $ac_status" >&5
+  echo "$as_me:4385: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:4216: \"$ac_try\"") >&5
+  { (eval echo "$as_me:4388: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4219: \$? = $ac_status" >&5
+  echo "$as_me:4391: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_func_sigvec=yes
 else
@@ -4226,7 +4398,7 @@ ac_cv_func_sigvec=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:4229: result: $ac_cv_func_sigvec" >&5
+echo "$as_me:4401: result: $ac_cv_func_sigvec" >&5
 echo "${ECHO_T}$ac_cv_func_sigvec" >&6
 if test $ac_cv_func_sigvec = yes; then
   sigvec=1
@@ -4245,23 +4417,23 @@ fi ;;
 
    1|2|4)   # bad news have to turn off traps
 	    # only know how to do this on systemV and solaris
-echo "$as_me:4248: checking for ieeefp.h" >&5
+echo "$as_me:4420: checking for ieeefp.h" >&5
 echo $ECHO_N "checking for ieeefp.h... $ECHO_C" >&6
 if test "${ac_cv_header_ieeefp_h+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4254 "configure"
+#line 4426 "configure"
 #include "confdefs.h"
 #include <ieeefp.h>
 _ACEOF
-if { (eval echo "$as_me:4258: \"$ac_cpp conftest.$ac_ext\"") >&5
+if { (eval echo "$as_me:4430: \"$ac_cpp conftest.$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:4264: \$? = $ac_status" >&5
+  echo "$as_me:4436: \$? = $ac_status" >&5
   (exit $ac_status); } >/dev/null; then
   if test -s conftest.err; then
     ac_cpp_err=$ac_c_preproc_warn_flag
@@ -4280,19 +4452,19 @@ else
 fi
 rm -f conftest.err conftest.$ac_ext
 fi
-echo "$as_me:4283: result: $ac_cv_header_ieeefp_h" >&5
+echo "$as_me:4455: result: $ac_cv_header_ieeefp_h" >&5
 echo "${ECHO_T}$ac_cv_header_ieeefp_h" >&6
 if test $ac_cv_header_ieeefp_h = yes; then
   ieeefp_h=1
 fi
 
-echo "$as_me:4289: checking for fpsetmask" >&5
+echo "$as_me:4461: checking for fpsetmask" >&5
 echo $ECHO_N "checking for fpsetmask... $ECHO_C" >&6
 if test "${ac_cv_func_fpsetmask+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4295 "configure"
+#line 4467 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char fpsetmask (); below.  */
@@ -4323,16 +4495,16 @@ f = fpsetmask;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:4326: \"$ac_link\"") >&5
+if { (eval echo "$as_me:4498: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:4329: \$? = $ac_status" >&5
+  echo "$as_me:4501: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:4332: \"$ac_try\"") >&5
+  { (eval echo "$as_me:4504: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4335: \$? = $ac_status" >&5
+  echo "$as_me:4507: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_func_fpsetmask=yes
 else
@@ -4342,7 +4514,7 @@ ac_cv_func_fpsetmask=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:4345: result: $ac_cv_func_fpsetmask" >&5
+echo "$as_me:4517: result: $ac_cv_func_fpsetmask" >&5
 echo "${ECHO_T}$ac_cv_func_fpsetmask" >&6
 if test $ac_cv_func_fpsetmask = yes; then
   fpsetmask=1
@@ -4363,13 +4535,13 @@ EOF
 
 if test "x$cf_cv_use_sv_siginfo" = "xno"
 then
-   echo "$as_me:4366: checking for sigvec" >&5
+   echo "$as_me:4538: checking for sigvec" >&5
 echo $ECHO_N "checking for sigvec... $ECHO_C" >&6
 if test "${ac_cv_func_sigvec+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4372 "configure"
+#line 4544 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sigvec (); below.  */
@@ -4400,16 +4572,16 @@ f = sigvec;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:4403: \"$ac_link\"") >&5
+if { (eval echo "$as_me:4575: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:4406: \$? = $ac_status" >&5
+  echo "$as_me:4578: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:4409: \"$ac_try\"") >&5
+  { (eval echo "$as_me:4581: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4412: \$? = $ac_status" >&5
+  echo "$as_me:4584: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_func_sigvec=yes
 else
@@ -4419,7 +4591,7 @@ ac_cv_func_sigvec=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:4422: result: $ac_cv_func_sigvec" >&5
+echo "$as_me:4594: result: $ac_cv_func_sigvec" >&5
 echo "${ECHO_T}$ac_cv_func_sigvec" >&6
 if test $ac_cv_func_sigvec = yes; then
   sigvec=1
@@ -4437,7 +4609,7 @@ EOF
 fi
 
 # look for strtod overflow bug
-echo "$as_me:4440: checking strtod bug on overflow" >&5
+echo "$as_me:4612: checking strtod bug on overflow" >&5
 echo $ECHO_N "checking strtod bug on overflow... $ECHO_C" >&6
 
 rm -f fpe_check$ac_exeext
@@ -4446,10 +4618,10 @@ $CC $CFLAGS $cf_FPE_DEFS -DUSE_IEEEFP_H -o fpe_check $srcdir/fpe_check.c $MATHLI
 # FPE_CHECK 3:check_strtod_ovf
 if ./fpe_check phoney_arg phoney_arg 2>/dev/null
 then
-   echo "$as_me:4449: result: no bug" >&5
+   echo "$as_me:4621: result: no bug" >&5
 echo "${ECHO_T}no bug" >&6
 else
-   echo "$as_me:4452: result: buggy -- will use work around" >&5
+   echo "$as_me:4624: result: buggy -- will use work around" >&5
 echo "${ECHO_T}buggy -- will use work around" >&6
    cat >>confdefs.h <<EOF
 #define HAVE_STRTOD_OVF_BUG 1
@@ -4465,13 +4637,13 @@ EOF
 
 if test "x$cf_cv_use_sv_siginfo" = "xno"
 then
-   echo "$as_me:4468: checking for sigvec" >&5
+   echo "$as_me:4640: checking for sigvec" >&5
 echo $ECHO_N "checking for sigvec... $ECHO_C" >&6
 if test "${ac_cv_func_sigvec+set}" = set; then
   echo $ECHO_N "(cached) $ECHO_C" >&6
 else
   cat >conftest.$ac_ext <<_ACEOF
-#line 4474 "configure"
+#line 4646 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char sigvec (); below.  */
@@ -4502,16 +4674,16 @@ f = sigvec;
 }
 _ACEOF
 rm -f conftest.$ac_objext conftest$ac_exeext
-if { (eval echo "$as_me:4505: \"$ac_link\"") >&5
+if { (eval echo "$as_me:4677: \"$ac_link\"") >&5
   (eval $ac_link) 2>&5
   ac_status=$?
-  echo "$as_me:4508: \$? = $ac_status" >&5
+  echo "$as_me:4680: \$? = $ac_status" >&5
   (exit $ac_status); } &&
          { ac_try='test -s conftest$ac_exeext'
-  { (eval echo "$as_me:4511: \"$ac_try\"") >&5
+  { (eval echo "$as_me:4683: \"$ac_try\"") >&5
   (eval $ac_try) 2>&5
   ac_status=$?
-  echo "$as_me:4514: \$? = $ac_status" >&5
+  echo "$as_me:4686: \$? = $ac_status" >&5
   (exit $ac_status); }; }; then
   ac_cv_func_sigvec=yes
 else
@@ -4521,7 +4693,7 @@ ac_cv_func_sigvec=no
 fi
 rm -f conftest.$ac_objext conftest$ac_exeext conftest.$ac_ext
 fi
-echo "$as_me:4524: result: $ac_cv_func_sigvec" >&5
+echo "$as_me:4696: result: $ac_cv_func_sigvec" >&5
 echo "${ECHO_T}$ac_cv_func_sigvec" >&6
 if test $ac_cv_func_sigvec = yes; then
   sigvec=1
@@ -4662,7 +4834,7 @@ DEFS=-DHAVE_CONFIG_H
 : ${CONFIG_STATUS=./config.status}
 ac_clean_files_save=$ac_clean_files
 ac_clean_files="$ac_clean_files $CONFIG_STATUS"
-{ echo "$as_me:4665: creating $CONFIG_STATUS" >&5
+{ echo "$as_me:4837: creating $CONFIG_STATUS" >&5
 echo "$as_me: creating $CONFIG_STATUS" >&6;}
 cat >$CONFIG_STATUS <<_ACEOF
 #! $SHELL
@@ -4835,7 +5007,7 @@ cat >>$CONFIG_STATUS <<\EOF
     echo "$ac_cs_version"; exit 0 ;;
   --he | --h)
     # Conflict between --help and --header
-    { { echo "$as_me:4838: error: ambiguous option: $1
+    { { echo "$as_me:5010: error: ambiguous option: $1
 Try \`$0 --help' for more information." >&5
 echo "$as_me: error: ambiguous option: $1
 Try \`$0 --help' for more information." >&2;}
@@ -4854,7 +5026,7 @@ Try \`$0 --help' for more information." >&2;}
     ac_need_defaults=false;;
 
   # This is an error.
-  -*) { { echo "$as_me:4857: error: unrecognized option: $1
+  -*) { { echo "$as_me:5029: error: unrecognized option: $1
 Try \`$0 --help' for more information." >&5
 echo "$as_me: error: unrecognized option: $1
 Try \`$0 --help' for more information." >&2;}
@@ -4891,7 +5063,7 @@ do
   # Handling of arguments.
   "Makefile" ) CONFIG_FILES="$CONFIG_FILES Makefile" ;;
   "config.h" ) CONFIG_HEADERS="$CONFIG_HEADERS config.h:config_h.in" ;;
-  *) { { echo "$as_me:4894: error: invalid argument: $ac_config_target" >&5
+  *) { { echo "$as_me:5066: error: invalid argument: $ac_config_target" >&5
 echo "$as_me: error: invalid argument: $ac_config_target" >&2;}
    { (exit 1); exit 1; }; };;
   esac
@@ -5115,7 +5287,7 @@ done; }
   esac
 
   if test x"$ac_file" != x-; then
-    { echo "$as_me:5118: creating $ac_file" >&5
+    { echo "$as_me:5290: creating $ac_file" >&5
 echo "$as_me: creating $ac_file" >&6;}
     rm -f "$ac_file"
   fi
@@ -5133,7 +5305,7 @@ echo "$as_me: creating $ac_file" >&6;}
       -) echo $tmp/stdin ;;
       [\\/$]*)
          # Absolute (can't be DOS-style, as IFS=:)
-         test -f "$f" || { { echo "$as_me:5136: error: cannot find input file: $f" >&5
+         test -f "$f" || { { echo "$as_me:5308: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          echo $f;;
@@ -5146,7 +5318,7 @@ echo "$as_me: error: cannot find input file: $f" >&2;}
            echo $srcdir/$f
          else
            # /dev/null tree
-           { { echo "$as_me:5149: error: cannot find input file: $f" >&5
+           { { echo "$as_me:5321: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          fi;;
@@ -5212,7 +5384,7 @@ for ac_file in : $CONFIG_HEADERS; do test "x$ac_file" = x: && continue
   * )   ac_file_in=$ac_file.in ;;
   esac
 
-  test x"$ac_file" != x- && { echo "$as_me:5215: creating $ac_file" >&5
+  test x"$ac_file" != x- && { echo "$as_me:5387: creating $ac_file" >&5
 echo "$as_me: creating $ac_file" >&6;}
 
   # First look for the input files in the build tree, otherwise in the
@@ -5223,7 +5395,7 @@ echo "$as_me: creating $ac_file" >&6;}
       -) echo $tmp/stdin ;;
       [\\/$]*)
          # Absolute (can't be DOS-style, as IFS=:)
-         test -f "$f" || { { echo "$as_me:5226: error: cannot find input file: $f" >&5
+         test -f "$f" || { { echo "$as_me:5398: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          echo $f;;
@@ -5236,7 +5408,7 @@ echo "$as_me: error: cannot find input file: $f" >&2;}
            echo $srcdir/$f
          else
            # /dev/null tree
-           { { echo "$as_me:5239: error: cannot find input file: $f" >&5
+           { { echo "$as_me:5411: error: cannot find input file: $f" >&5
 echo "$as_me: error: cannot find input file: $f" >&2;}
    { (exit 1); exit 1; }; }
          fi;;
@@ -5354,7 +5526,7 @@ cat >>$CONFIG_STATUS <<\EOF
   rm -f $tmp/in
   if test x"$ac_file" != x-; then
     if cmp -s $ac_file $tmp/config.h 2>/dev/null; then
-      { echo "$as_me:5357: $ac_file is unchanged" >&5
+      { echo "$as_me:5529: $ac_file is unchanged" >&5
 echo "$as_me: $ac_file is unchanged" >&6;}
     else
       ac_dir=`$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
diff --git a/configure.in b/configure.in
index 7254c22..ca783a6 100644
--- a/configure.in
+++ b/configure.in
@@ -1,4 +1,4 @@
-dnl $MawkId: configure.in,v 1.26 2009/12/16 00:23:15 tom Exp $
+dnl $MawkId: configure.in,v 1.28 2009/12/16 10:16:46 tom Exp $
 dnl configure.in for mawk
 dnl
 dnl @Log: configure.in,v @
@@ -58,6 +58,13 @@ if test "x${with_builtin_regex}" != xno; then
 fi
 AC_MSG_RESULT($with_builtin_regex)
 
+if test "x${with_builtin_regex}" = xno; then
+    AC_CHECK_HEADER(regex.h,cf_have_regex_h=yes,cf_have_regex_h=no)
+    if test "$cf_have_regex_h" != yes ; then
+	AC_MSG_ERROR(could not find regex.h)
+    fi
+fi
+
 AC_PROG_YACC
 CF_ANSI_CC_REQD
 CF_XOPEN_SOURCE
@@ -65,7 +72,15 @@ CF_XOPEN_SOURCE
 CF_MAWK_FIND_SIZE_T
 CF_LOCALE
 CF_CHECK_ENVIRON(environ)
+
+AC_CHECK_FUNCS(fork pipe wait)
+test "$ac_cv_func_fork" = yes && \
+test "$ac_cv_func_pipe" = yes && \
+test "$ac_cv_func_wait" = yes && \
 AC_DEFINE(HAVE_REAL_PIPES)
+
+AC_CHECK_HEADERS(sys/wait.h)
+
 CF_MAWK_CHECK_HEADERS(fcntl.h errno.h math.h time.h stdarg.h stdlib.h string.h)
 CF_MAWK_CHECK_FUNCS(memcpy strchr strerror vfprintf strtod fmod matherr)
 CF_MAWK_FIND_MAX_INT
diff --git a/files.c b/files.c
index 2ddeb88..8728b6d 100644
--- a/files.c
+++ b/files.c
@@ -10,7 +10,7 @@ the GNU General Public License, version 2, 1991.
 ********************************************/
 
 /*
- * $MawkId: files.c,v 1.10 2009/12/14 01:17:34 tom Exp $
+ * $MawkId: files.c,v 1.11 2009/12/16 09:42:53 tom Exp $
  * @Log: files.c,v @
  * Revision 1.9  1996/01/14  17:14:10  mike
  * flush_all_output()
@@ -64,9 +64,12 @@ the GNU General Public License, version 2, 1991.
 #include "init.h"
 
 #include <sys/types.h>
-#include <sys/wait.h>
 #include <unistd.h>
 
+#ifdef HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
 #ifdef	V7
 #include  <sgtty.h>		/* defines FIOCLEX */
 #endif
diff --git a/init.c b/init.c
index ffda893..5351e80 100644
--- a/init.c
+++ b/init.c
@@ -10,7 +10,7 @@ the GNU General Public License, version 2, 1991.
 ********************************************/
 
 /*
- * $MawkId: init.c,v 1.14 2009/12/15 01:50:45 tom Exp $
+ * $MawkId: init.c,v 1.15 2009/12/16 09:54:23 tom Exp $
  * @Log: init.c,v @
  * Revision 1.11  1995/08/20  17:35:21  mike
  * include <stdlib.h> for MSC, needed for environ decl
@@ -354,9 +354,11 @@ set_ARGV(int argc, char **argv, int i)
 
 #ifdef DECL_ENVIRON
 #ifndef	 MSDOS_MSC		/* MSC declares it near */
+#ifndef environ
 extern char **environ;
 #endif
 #endif
+#endif
 
 void
 load_environ(ARRAY ENV)
diff --git a/patchlev.h b/patchlev.h
index 9b0e1ee..8e63867 100644
--- a/patchlev.h
+++ b/patchlev.h
@@ -1,6 +1,6 @@
 /*
- * $MawkId: patchlev.h,v 1.13 2009/12/15 11:44:27 tom Exp $
+ * $MawkId: patchlev.h,v 1.14 2009/12/16 09:35:25 tom Exp $
  */
 #define  PATCHLEVEL	3
 #define  PATCH_STRING	".4"
-#define  DATE_STRING    "20091215"
+#define  DATE_STRING    "20091216"
diff --git a/scan.c b/scan.c
index 290fc6c..6418743 100644
--- a/scan.c
+++ b/scan.c
@@ -10,7 +10,7 @@ the GNU General Public License, version 2, 1991.
 ********************************************/
 
 /*
- * $MawkId: scan.c,v 1.13 2009/12/14 01:09:18 tom Exp $
+ * $MawkId: scan.c,v 1.14 2009/12/16 09:57:25 tom Exp $
  * @Log: scan.c,v @
  * Revision 1.8  1996/07/28 21:47:05  mike
  * gnuish patch
@@ -733,6 +733,7 @@ collect_decimal(int c, int *flag)
 {
     register UChar *p = (UChar *) string_buff + 1;
     UChar *endp;
+    char *temp;
     double d;
 
     *flag = 0;
@@ -786,7 +787,8 @@ collect_decimal(int c, int *flag)
     }
 
     errno = 0;			/* check for overflow/underflow */
-    d = strtod(string_buff, (char **) &endp);
+    d = strtod(string_buff, &temp);
+    endp = (UChar *) temp;
 
 #ifndef	 STRTOD_UNDERFLOW_ON_ZERO_BUG
     if (errno)