Checks for getsid and getpgid for better zwgc process group handling.

Get rid of obsolete libgen check.

2 files changed, 107 insertions, 99 deletions

diff --git a/configure b/configure
index 830177b..19feff6 100755
--- a/configure
+++ b/configure
@@ -2075,7 +2075,7 @@ EOF
 
 fi
 
-for ac_hdr in fcntl.h paths.h termios.h sgtty.h unistd.h libgen.h malloc.h
+for ac_hdr in fcntl.h paths.h termios.h sgtty.h unistd.h malloc.h
 do
 ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
 echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
@@ -2795,48 +2795,8 @@ else
 TLIB=-ltermcap
 fi
 
-echo $ac_n "checking for regcmp in -lgen""... $ac_c" 1>&6
-echo "configure:2800: checking for regcmp in -lgen" >&5
-ac_lib_var=`echo gen'_'regcmp | sed 'y%./+-%__p_%'`
-if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
-  echo $ac_n "(cached) $ac_c" 1>&6
-else
-  ac_save_LIBS="$LIBS"
-LIBS="-lgen  $LIBS"
-cat > conftest.$ac_ext <<EOF
-#line 2808 "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
-    builtin and then its argument prototype would still apply.  */
-char regcmp();
-
-int main() {
-regcmp()
-; return 0; }
-EOF
-if { (eval echo configure:2819: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=yes"
-else
-  echo "configure: failed program was:" >&5
-  cat conftest.$ac_ext >&5
-  rm -rf conftest*
-  eval "ac_cv_lib_$ac_lib_var=no"
-fi
-rm -f conftest*
-LIBS="$ac_save_LIBS"
-
-fi
-if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
-  echo "$ac_t""yes" 1>&6
-  RLIB=-lgen
-else
-  echo "$ac_t""no" 1>&6
-fi
-
 echo $ac_n "checking for srcsrpy in -lsrc""... $ac_c" 1>&6
-echo "configure:2840: checking for srcsrpy in -lsrc" >&5
+echo "configure:2800: checking for srcsrpy in -lsrc" >&5
 ac_lib_var=`echo src'_'srcsrpy | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2844,7 +2804,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsrc  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2848 "configure"
+#line 2808 "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
@@ -2855,7 +2815,7 @@ int main() {
 srcsrpy()
 ; return 0; }
 EOF
-if { (eval echo configure:2859: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2819: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2892,12 +2852,12 @@ fi
 
 if test "$krb4" != no; then
 	echo $ac_n "checking for gethostbyname""... $ac_c" 1>&6
-echo "configure:2896: checking for gethostbyname" >&5
+echo "configure:2856: checking for gethostbyname" >&5
 if eval "test \"`echo '$''{'ac_cv_func_gethostbyname'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2901 "configure"
+#line 2861 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char gethostbyname(); below.  */
@@ -2920,7 +2880,7 @@ gethostbyname();
 
 ; return 0; }
 EOF
-if { (eval echo configure:2924: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2884: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_gethostbyname=yes"
 else
@@ -2938,7 +2898,7 @@ if eval "test \"`echo '$ac_cv_func_'gethostbyname`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for gethostbyname in -lnsl""... $ac_c" 1>&6
-echo "configure:2942: checking for gethostbyname in -lnsl" >&5
+echo "configure:2902: checking for gethostbyname in -lnsl" >&5
 ac_lib_var=`echo nsl'_'gethostbyname | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -2946,7 +2906,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lnsl  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 2950 "configure"
+#line 2910 "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
@@ -2957,7 +2917,7 @@ int main() {
 gethostbyname()
 ; return 0; }
 EOF
-if { (eval echo configure:2961: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2921: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -2987,12 +2947,12 @@ fi
 fi
 
 echo $ac_n "checking for socket""... $ac_c" 1>&6
-echo "configure:2991: checking for socket" >&5
+echo "configure:2951: checking for socket" >&5
 if eval "test \"`echo '$''{'ac_cv_func_socket'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 2996 "configure"
+#line 2956 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char socket(); below.  */
@@ -3015,7 +2975,7 @@ socket();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3019: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:2979: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_socket=yes"
 else
@@ -3033,7 +2993,7 @@ if eval "test \"`echo '$ac_cv_func_'socket`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for socket in -lsocket""... $ac_c" 1>&6
-echo "configure:3037: checking for socket in -lsocket" >&5
+echo "configure:2997: checking for socket in -lsocket" >&5
 ac_lib_var=`echo socket'_'socket | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3041,7 +3001,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lsocket  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3045 "configure"
+#line 3005 "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
@@ -3052,7 +3012,7 @@ int main() {
 socket()
 ; return 0; }
 EOF
-if { (eval echo configure:3056: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3016: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3082,7 +3042,7 @@ fi
 fi
 
 echo $ac_n "checking for compile in -lgen""... $ac_c" 1>&6
-echo "configure:3086: checking for compile in -lgen" >&5
+echo "configure:3046: checking for compile in -lgen" >&5
 ac_lib_var=`echo gen'_'compile | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3090,7 +3050,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lgen  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3094 "configure"
+#line 3054 "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
@@ -3101,7 +3061,7 @@ int main() {
 compile()
 ; return 0; }
 EOF
-if { (eval echo configure:3105: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3065: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3138,7 +3098,7 @@ elif test -d /usr/include/kerberosIV; then
 	CPPFLAGS="$CPPFLAGS -I/usr/include/kerberosIV"
 fi
 echo $ac_n "checking for krb_rd_req in -lkrb4""... $ac_c" 1>&6
-echo "configure:3142: checking for krb_rd_req in -lkrb4" >&5
+echo "configure:3102: checking for krb_rd_req in -lkrb4" >&5
 ac_lib_var=`echo krb4'_'krb_rd_req | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3146,7 +3106,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lkrb4 -ldes425 -lkrb5 -lcrypto -lcom_err $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3150 "configure"
+#line 3110 "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
@@ -3157,7 +3117,7 @@ int main() {
 krb_rd_req()
 ; return 0; }
 EOF
-if { (eval echo configure:3161: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3121: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3176,7 +3136,7 @@ if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for krb_rd_req in -lkrb""... $ac_c" 1>&6
-echo "configure:3180: checking for krb_rd_req in -lkrb" >&5
+echo "configure:3140: checking for krb_rd_req in -lkrb" >&5
 ac_lib_var=`echo krb'_'krb_rd_req | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3184,7 +3144,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lkrb -ldes $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3188 "configure"
+#line 3148 "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
@@ -3195,7 +3155,7 @@ int main() {
 krb_rd_req()
 ; return 0; }
 EOF
-if { (eval echo configure:3199: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3159: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3234,12 +3194,12 @@ fi
 
 if test "$hesiod" != no; then
 	echo $ac_n "checking for res_send""... $ac_c" 1>&6
-echo "configure:3238: checking for res_send" >&5
+echo "configure:3198: checking for res_send" >&5
 if eval "test \"`echo '$''{'ac_cv_func_res_send'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3243 "configure"
+#line 3203 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char res_send(); below.  */
@@ -3262,7 +3222,7 @@ res_send();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3266: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3226: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_res_send=yes"
 else
@@ -3280,7 +3240,7 @@ if eval "test \"`echo '$ac_cv_func_'res_send`\" = yes"; then
 else
   echo "$ac_t""no" 1>&6
 echo $ac_n "checking for res_send in -lresolv""... $ac_c" 1>&6
-echo "configure:3284: checking for res_send in -lresolv" >&5
+echo "configure:3244: checking for res_send in -lresolv" >&5
 ac_lib_var=`echo resolv'_'res_send | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3288,7 +3248,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lresolv  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3292 "configure"
+#line 3252 "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
@@ -3299,7 +3259,7 @@ int main() {
 res_send()
 ; return 0; }
 EOF
-if { (eval echo configure:3303: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3263: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3333,7 +3293,7 @@ if test "$hesiod" != yes; then
 	LDFLAGS="$LDFLAGS -L$hesiod/lib"
 fi
 echo $ac_n "checking for hes_resolve in -lhesiod""... $ac_c" 1>&6
-echo "configure:3337: checking for hes_resolve in -lhesiod" >&5
+echo "configure:3297: checking for hes_resolve in -lhesiod" >&5
 ac_lib_var=`echo hesiod'_'hes_resolve | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3341,7 +3301,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lhesiod  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3345 "configure"
+#line 3305 "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
@@ -3352,7 +3312,7 @@ int main() {
 hes_resolve()
 ; return 0; }
 EOF
-if { (eval echo configure:3356: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3316: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3394,7 +3354,7 @@ if test "$regex" != no; then
 		LDFLAGS="$LDFLAGS -L$regex/lib"
 	fi
 	echo $ac_n "checking for regcomp in -lregex""... $ac_c" 1>&6
-echo "configure:3398: checking for regcomp in -lregex" >&5
+echo "configure:3358: checking for regcomp in -lregex" >&5
 ac_lib_var=`echo regex'_'regcomp | sed 'y%./+-%__p_%'`
 if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -3402,7 +3362,7 @@ else
   ac_save_LIBS="$LIBS"
 LIBS="-lregex  $LIBS"
 cat > conftest.$ac_ext <<EOF
-#line 3406 "configure"
+#line 3366 "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
@@ -3413,7 +3373,7 @@ int main() {
 regcomp()
 ; return 0; }
 EOF
-if { (eval echo configure:3417: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3377: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_lib_$ac_lib_var=yes"
 else
@@ -3436,12 +3396,12 @@ fi
 
 else
 	echo $ac_n "checking for regcomp""... $ac_c" 1>&6
-echo "configure:3440: checking for regcomp" >&5
+echo "configure:3400: checking for regcomp" >&5
 if eval "test \"`echo '$''{'ac_cv_func_regcomp'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3445 "configure"
+#line 3405 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char regcomp(); below.  */
@@ -3464,7 +3424,7 @@ regcomp();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3468: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3428: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_regcomp=yes"
 else
@@ -3490,13 +3450,13 @@ LIBS="$KRB4_LIBS $HESIOD_LIBS $LIBS"
 
 if test $ac_cv_prog_gcc = yes; then
     echo $ac_n "checking whether ${CC-cc} needs -traditional""... $ac_c" 1>&6
-echo "configure:3494: checking whether ${CC-cc} needs -traditional" >&5
+echo "configure:3454: checking whether ${CC-cc} needs -traditional" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc_traditional'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
     ac_pattern="Autoconf.*'x'"
   cat > conftest.$ac_ext <<EOF
-#line 3500 "configure"
+#line 3460 "configure"
 #include "confdefs.h"
 #include <sgtty.h>
 Autoconf TIOCGETP
@@ -3514,7 +3474,7 @@ rm -f conftest*
 
   if test $ac_cv_prog_gcc_traditional = no; then
     cat > conftest.$ac_ext <<EOF
-#line 3518 "configure"
+#line 3478 "configure"
 #include "confdefs.h"
 #include <termio.h>
 Autoconf TCGETA
@@ -3536,12 +3496,12 @@ echo "$ac_t""$ac_cv_prog_gcc_traditional" 1>&6
 fi
 
 echo $ac_n "checking for vprintf""... $ac_c" 1>&6
-echo "configure:3540: checking for vprintf" >&5
+echo "configure:3500: checking for vprintf" >&5
 if eval "test \"`echo '$''{'ac_cv_func_vprintf'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3545 "configure"
+#line 3505 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char vprintf(); below.  */
@@ -3564,7 +3524,7 @@ vprintf();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3568: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3528: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_vprintf=yes"
 else
@@ -3588,12 +3548,12 @@ fi
 
 if test "$ac_cv_func_vprintf" != yes; then
 echo $ac_n "checking for _doprnt""... $ac_c" 1>&6
-echo "configure:3592: checking for _doprnt" >&5
+echo "configure:3552: checking for _doprnt" >&5
 if eval "test \"`echo '$''{'ac_cv_func__doprnt'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3597 "configure"
+#line 3557 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char _doprnt(); below.  */
@@ -3616,7 +3576,7 @@ _doprnt();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3620: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3580: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func__doprnt=yes"
 else
@@ -3640,15 +3600,63 @@ fi
 
 fi
 
+echo $ac_n "checking whether setpgrp takes no argument""... $ac_c" 1>&6
+echo "configure:3605: checking whether setpgrp takes no argument" >&5
+if eval "test \"`echo '$''{'ac_cv_func_setpgrp_void'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+  { echo "configure: error: cannot check setpgrp if cross compiling" 1>&2; exit 1; }
+else
+  cat > conftest.$ac_ext <<EOF
+#line 3613 "configure"
+#include "confdefs.h"
+
+/*
+ * If this system has a BSD-style setpgrp, which takes arguments, exit
+ * successfully.
+ */
+main()
+{
+    if (setpgrp(1,1) == -1)
+	exit(0);
+    else
+	exit(1);
+}
+
+EOF
+if { (eval echo configure:3629: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  ac_cv_func_setpgrp_void=no
+else
+  echo "configure: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  ac_cv_func_setpgrp_void=yes
+fi
+rm -fr conftest*
+fi
+
+
+fi
+
+echo "$ac_t""$ac_cv_func_setpgrp_void" 1>&6
+if test $ac_cv_func_setpgrp_void = yes; then
+  cat >> confdefs.h <<\EOF
+#define SETPGRP_VOID 1
+EOF
+
+fi
+
 for ac_func in putenv strchr memcpy memmove waitpid getlogin strerror random
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3647: checking for $ac_func" >&5
+echo "configure:3655: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3652 "configure"
+#line 3660 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3671,7 +3679,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3675: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3683: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
@@ -3695,15 +3703,15 @@ else
 fi
 done
 
-for ac_func in lrand48 gethostid krb_get_err_text krb_log
+for ac_func in lrand48 gethostid getsid getpgid krb_get_err_text krb_log
 do
 echo $ac_n "checking for $ac_func""... $ac_c" 1>&6
-echo "configure:3702: checking for $ac_func" >&5
+echo "configure:3710: checking for $ac_func" >&5
 if eval "test \"`echo '$''{'ac_cv_func_$ac_func'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
   cat > conftest.$ac_ext <<EOF
-#line 3707 "configure"
+#line 3715 "configure"
 #include "confdefs.h"
 /* System header to define __stub macros and hopefully few prototypes,
     which can conflict with char $ac_func(); below.  */
@@ -3726,7 +3734,7 @@ $ac_func();
 
 ; return 0; }
 EOF
-if { (eval echo configure:3730: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+if { (eval echo configure:3738: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
   rm -rf conftest*
   eval "ac_cv_func_$ac_func=yes"
 else
diff --git a/configure.in b/configure.in
index ead2e84..9ee0278 100644
--- a/configure.in
+++ b/configure.in
@@ -34,7 +34,7 @@ dnl Checks for header files.
 AC_PATH_XTRA
 AC_HEADER_STDC
 AC_HEADER_SYS_WAIT
-AC_CHECK_HEADERS(fcntl.h paths.h termios.h sgtty.h unistd.h libgen.h malloc.h)
+AC_CHECK_HEADERS(fcntl.h paths.h termios.h sgtty.h unistd.h malloc.h)
 AC_CHECK_HEADERS(sys/filio.h sys/ioctl.h sys/time.h sys/file.h sys/utsname.h)
 AC_CHECK_HEADERS(sys/select.h sys/msgbuf.h sys/cdefs.h)
 
@@ -83,7 +83,6 @@ if test "$hesiod" != "no"; then
 fi
 
 AC_CHECK_LIB(curses, tgetstr, [TLIB=-lcurses], [TLIB=-ltermcap])
-AC_CHECK_LIB(gen, regcmp, [RLIB=-lgen])
 AC_CHECK_LIB(src, srcsrpy, [SLIB=-lsrc; AC_DEFINE(HAVE_SRC)])
 AC_SUBST(TLIB)
 AC_SUBST(RLIB)
@@ -97,8 +96,9 @@ LIBS="$KRB4_LIBS $HESIOD_LIBS $LIBS"
 dnl Checks for library functions.
 AC_PROG_GCC_TRADITIONAL
 AC_FUNC_VPRINTF
+AC_FUNC_SETPGRP
 AC_CHECK_FUNCS(putenv strchr memcpy memmove waitpid getlogin strerror random)
-AC_CHECK_FUNCS(lrand48 gethostid krb_get_err_text krb_log)
+AC_CHECK_FUNCS(lrand48 gethostid getsid getpgid krb_get_err_text krb_log)
 
 AC_CONFIG_HEADER(h/config.h)
 AC_OUTPUT(Makefile clients/Makefile clients/syslogd/Makefile