Added fixes for Tcl Bug 999544 (ported from core-8-4-branch).

1 files changed, 1537 insertions, 0 deletions

diff --git a/unix/configure b/unix/configure
index 65ff57e..bf0d085 100755
--- a/unix/configure
+++ b/unix/configure
@@ -9805,6 +9805,1543 @@ _ACEOF
 fi
 
 
+#--------------------------------------------------------------------
+#	Look for thread-safe variants of some library functions.
+#--------------------------------------------------------------------
+
+if test "${TCL_THREADS}" = 1; then
+    echo "$as_me:$LINENO: checking for getpwuid_r" >&5
+echo $ECHO_N "checking for getpwuid_r... $ECHO_C" >&6
+if test "${ac_cv_func_getpwuid_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define getpwuid_r to an innocuous variant, in case <limits.h> declares getpwuid_r.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define getpwuid_r innocuous_getpwuid_r
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char getpwuid_r (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef getpwuid_r
+
+/* 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 getpwuid_r ();
+/* 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_getpwuid_r) || defined (__stub___getpwuid_r)
+choke me
+#else
+char (*f) () = getpwuid_r;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != getpwuid_r;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_getpwuid_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_getpwuid_r=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_getpwuid_r" >&5
+echo "${ECHO_T}$ac_cv_func_getpwuid_r" >&6
+if test $ac_cv_func_getpwuid_r = yes; then
+
+    echo "$as_me:$LINENO: checking for getpwuid_r with 5 args" >&5
+echo $ECHO_N "checking for getpwuid_r with 5 args... $ECHO_C" >&6
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+        #include <sys/types.h>
+        #include <pwd.h>
+
+int
+main ()
+{
+
+        uid_t uid;
+        struct passwd pw, *pwp;
+        char buf[512];
+        int buflen = 512;
+
+        (void) getpwuid_r(uid, &pw, buf, buflen, &pwp);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWUID_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWUID_R_5 1
+_ACEOF
+
+        echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+        echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+        echo "$as_me:$LINENO: checking for getpwuid_r with 4 args" >&5
+echo $ECHO_N "checking for getpwuid_r with 4 args... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+            #include <sys/types.h>
+            #include <pwd.h>
+
+int
+main ()
+{
+
+            uid_t uid;
+            struct passwd pw;
+            char buf[512];
+            int buflen = 512;
+
+            (void)getpwnam_r(uid, &pw, buf, buflen);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWUID_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWUID_R_4 1
+_ACEOF
+
+            echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+            echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+
+    echo "$as_me:$LINENO: checking for getpwnam_r" >&5
+echo $ECHO_N "checking for getpwnam_r... $ECHO_C" >&6
+if test "${ac_cv_func_getpwnam_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define getpwnam_r to an innocuous variant, in case <limits.h> declares getpwnam_r.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define getpwnam_r innocuous_getpwnam_r
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char getpwnam_r (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef getpwnam_r
+
+/* 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 getpwnam_r ();
+/* 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_getpwnam_r) || defined (__stub___getpwnam_r)
+choke me
+#else
+char (*f) () = getpwnam_r;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != getpwnam_r;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_getpwnam_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_getpwnam_r=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_getpwnam_r" >&5
+echo "${ECHO_T}$ac_cv_func_getpwnam_r" >&6
+if test $ac_cv_func_getpwnam_r = yes; then
+
+    echo "$as_me:$LINENO: checking for getpwnam_r with 5 args" >&5
+echo $ECHO_N "checking for getpwnam_r with 5 args... $ECHO_C" >&6
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+        #include <sys/types.h>
+        #include <pwd.h>
+
+int
+main ()
+{
+
+        char *name;
+        struct passwd pw, *pwp;
+        char buf[512];
+        int buflen = 512;
+
+        (void) getpwnam_r(name, &pw, buf, buflen, &pwp);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWNAM_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWNAM_R_5 1
+_ACEOF
+
+        echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+        echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+        echo "$as_me:$LINENO: checking for getpwnam_r with 4 args" >&5
+echo $ECHO_N "checking for getpwnam_r with 4 args... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+            #include <sys/types.h>
+            #include <pwd.h>
+
+int
+main ()
+{
+
+            char *name;
+            struct passwd pw;
+            char buf[512];
+            int buflen = 512;
+
+            (void)getpwnam_r(name, &pw, buf, buflen);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWNAM_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETPWNAM_R_4 1
+_ACEOF
+
+            echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+            echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+
+    echo "$as_me:$LINENO: checking for getgrgid_r" >&5
+echo $ECHO_N "checking for getgrgid_r... $ECHO_C" >&6
+if test "${ac_cv_func_getgrgid_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define getgrgid_r to an innocuous variant, in case <limits.h> declares getgrgid_r.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define getgrgid_r innocuous_getgrgid_r
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char getgrgid_r (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef getgrgid_r
+
+/* 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 getgrgid_r ();
+/* 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_getgrgid_r) || defined (__stub___getgrgid_r)
+choke me
+#else
+char (*f) () = getgrgid_r;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != getgrgid_r;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_getgrgid_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_getgrgid_r=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_getgrgid_r" >&5
+echo "${ECHO_T}$ac_cv_func_getgrgid_r" >&6
+if test $ac_cv_func_getgrgid_r = yes; then
+
+    echo "$as_me:$LINENO: checking for getgrgid_r with 5 args" >&5
+echo $ECHO_N "checking for getgrgid_r with 5 args... $ECHO_C" >&6
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+        #include <sys/types.h>
+        #include <grp.h>
+
+int
+main ()
+{
+
+        gid_t gid;
+        struct group gr, *grp;
+        char buf[512];
+        int buflen = 512;
+
+        (void) getgrgid_r(gid, &gr, buf, buflen, &grp);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRGID_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRGID_R_5 1
+_ACEOF
+
+        echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+        echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+        echo "$as_me:$LINENO: checking for getgrgid_r with 4 args" >&5
+echo $ECHO_N "checking for getgrgid_r with 4 args... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+            #include <sys/types.h>
+            #include <grp.h>
+
+int
+main ()
+{
+
+            gid_t gid;
+            struct group gr;
+            char buf[512];
+            int buflen = 512;
+
+            (void)getgrgid_r(gid, &gr, buf, buflen);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRGID_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRGID_R_4 1
+_ACEOF
+
+            echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+            echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+
+    echo "$as_me:$LINENO: checking for getgrnam_r" >&5
+echo $ECHO_N "checking for getgrnam_r... $ECHO_C" >&6
+if test "${ac_cv_func_getgrnam_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define getgrnam_r to an innocuous variant, in case <limits.h> declares getgrnam_r.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define getgrnam_r innocuous_getgrnam_r
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char getgrnam_r (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef getgrnam_r
+
+/* 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 getgrnam_r ();
+/* 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_getgrnam_r) || defined (__stub___getgrnam_r)
+choke me
+#else
+char (*f) () = getgrnam_r;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != getgrnam_r;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_getgrnam_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_getgrnam_r=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_getgrnam_r" >&5
+echo "${ECHO_T}$ac_cv_func_getgrnam_r" >&6
+if test $ac_cv_func_getgrnam_r = yes; then
+
+    echo "$as_me:$LINENO: checking for getgrnam_r with 5 args" >&5
+echo $ECHO_N "checking for getgrnam_r with 5 args... $ECHO_C" >&6
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+        #include <sys/types.h>
+        #include <grp.h>
+
+int
+main ()
+{
+
+        char *name;
+        struct group gr, *grp;
+        char buf[512];
+        int buflen = 512;
+
+        (void) getgrnam_r(name, &gr, buf, buflen, &grp);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRNAM_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRNAM_R_5 1
+_ACEOF
+
+        echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+        echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+        echo "$as_me:$LINENO: checking for getgrnam_r with 4 args" >&5
+echo $ECHO_N "checking for getgrnam_r with 4 args... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+            #include <sys/types.h>
+            #include <grp.h>
+
+int
+main ()
+{
+
+            char *name;
+            struct group gr;
+            char buf[512];
+            int buflen = 512;
+
+            (void)getgrnam_r(name, &gr, buf, buflen);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRNAM_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETGRNAM_R_4 1
+_ACEOF
+
+            echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+            echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+
+    echo "$as_me:$LINENO: checking for gethostbyname_r" >&5
+echo $ECHO_N "checking for gethostbyname_r... $ECHO_C" >&6
+if test "${ac_cv_func_gethostbyname_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define gethostbyname_r to an innocuous variant, in case <limits.h> declares gethostbyname_r.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define gethostbyname_r innocuous_gethostbyname_r
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char gethostbyname_r (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef gethostbyname_r
+
+/* 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 gethostbyname_r ();
+/* 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_gethostbyname_r) || defined (__stub___gethostbyname_r)
+choke me
+#else
+char (*f) () = gethostbyname_r;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != gethostbyname_r;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_gethostbyname_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_gethostbyname_r=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_gethostbyname_r" >&5
+echo "${ECHO_T}$ac_cv_func_gethostbyname_r" >&6
+if test $ac_cv_func_gethostbyname_r = yes; then
+
+    echo "$as_me:$LINENO: checking for gethostbyname_r with 6 args" >&5
+echo $ECHO_N "checking for gethostbyname_r with 6 args... $ECHO_C" >&6
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+        #include <netdb.h>
+
+int
+main ()
+{
+
+        char *name;
+        struct hostent *he, *res;
+        char buffer[2048];
+        int buflen = 2048;
+        int h_errnop;
+
+        (void) gethostbyname_r(name, he, buffer, buflen, &res, &h_errnop);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYNAME_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYNAME_R_6 1
+_ACEOF
+
+        echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+        echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+        echo "$as_me:$LINENO: checking for gethostbyname_r with 5 args" >&5
+echo $ECHO_N "checking for gethostbyname_r with 5 args... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+            #include <netdb.h>
+
+int
+main ()
+{
+
+            char *name;
+            struct hostent *he;
+            char buffer[2048];
+            int buflen = 2048;
+            int h_errnop;
+
+            (void) gethostbyname_r(name, he, buffer, buflen, &h_errnop);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYNAME_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYNAME_R_5 1
+_ACEOF
+
+            echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+            echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+            echo "$as_me:$LINENO: checking for gethostbyname_r with 3 args" >&5
+echo $ECHO_N "checking for gethostbyname_r with 3 args... $ECHO_C" >&6
+            cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+                #include <netdb.h>
+
+int
+main ()
+{
+
+                char *name;
+                struct hostent *he;
+                struct hostent_data data;
+
+                (void) gethostbyname_r(name, he, &data);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYNAME_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYNAME_R_3 1
+_ACEOF
+
+                echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+                echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+
+    echo "$as_me:$LINENO: checking for gethostbyaddr_r" >&5
+echo $ECHO_N "checking for gethostbyaddr_r... $ECHO_C" >&6
+if test "${ac_cv_func_gethostbyaddr_r+set}" = set; then
+  echo $ECHO_N "(cached) $ECHO_C" >&6
+else
+  cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+/* Define gethostbyaddr_r to an innocuous variant, in case <limits.h> declares gethostbyaddr_r.
+   For example, HP-UX 11i <limits.h> declares gettimeofday.  */
+#define gethostbyaddr_r innocuous_gethostbyaddr_r
+
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char gethostbyaddr_r (); below.
+    Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+    <limits.h> exists even on freestanding compilers.  */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef gethostbyaddr_r
+
+/* 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 gethostbyaddr_r ();
+/* 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_gethostbyaddr_r) || defined (__stub___gethostbyaddr_r)
+choke me
+#else
+char (*f) () = gethostbyaddr_r;
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+int
+main ()
+{
+return f != gethostbyaddr_r;
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext conftest$ac_exeext
+if { (eval echo "$as_me:$LINENO: \"$ac_link\"") >&5
+  (eval $ac_link) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest$ac_exeext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+  ac_cv_func_gethostbyaddr_r=yes
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ac_cv_func_gethostbyaddr_r=no
+fi
+rm -f conftest.err conftest.$ac_objext \
+      conftest$ac_exeext conftest.$ac_ext
+fi
+echo "$as_me:$LINENO: result: $ac_cv_func_gethostbyaddr_r" >&5
+echo "${ECHO_T}$ac_cv_func_gethostbyaddr_r" >&6
+if test $ac_cv_func_gethostbyaddr_r = yes; then
+
+    echo "$as_me:$LINENO: checking for gethostbyaddr_r with 7 args" >&5
+echo $ECHO_N "checking for gethostbyaddr_r with 7 args... $ECHO_C" >&6
+    cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+        #include <netdb.h>
+
+int
+main ()
+{
+
+        char *addr;
+        int length;
+        int type;
+        struct hostent *result;
+        char buffer[2048];
+        int buflen = 2048;
+        int h_errnop;
+
+        (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
+                               &h_errnop);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYADDR_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYADDR_R_7 1
+_ACEOF
+
+        echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+        echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+        echo "$as_me:$LINENO: checking for gethostbyaddr_r with 8 args" >&5
+echo $ECHO_N "checking for gethostbyaddr_r with 8 args... $ECHO_C" >&6
+        cat >conftest.$ac_ext <<_ACEOF
+/* confdefs.h.  */
+_ACEOF
+cat confdefs.h >>conftest.$ac_ext
+cat >>conftest.$ac_ext <<_ACEOF
+/* end confdefs.h.  */
+
+            #include <netdb.h>
+
+int
+main ()
+{
+
+            char *addr;
+            int length;
+            int type;
+            struct hostent *result, *resultp;
+            char buffer[2048];
+            int buflen = 2048;
+            int h_errnop;
+
+            (void) gethostbyaddr_r(addr, length, type, result, buffer, buflen,
+                                   &resultp, &h_errnop);
+
+  ;
+  return 0;
+}
+_ACEOF
+rm -f conftest.$ac_objext
+if { (eval echo "$as_me:$LINENO: \"$ac_compile\"") >&5
+  (eval $ac_compile) 2>conftest.er1
+  ac_status=$?
+  grep -v '^ *+' conftest.er1 >conftest.err
+  rm -f conftest.er1
+  cat conftest.err >&5
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); } &&
+	 { ac_try='test -z "$ac_c_werror_flag"
+			 || test ! -s conftest.err'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; } &&
+	 { ac_try='test -s conftest.$ac_objext'
+  { (eval echo "$as_me:$LINENO: \"$ac_try\"") >&5
+  (eval $ac_try) 2>&5
+  ac_status=$?
+  echo "$as_me:$LINENO: \$? = $ac_status" >&5
+  (exit $ac_status); }; }; then
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYADDR_R 1
+_ACEOF
+
+
+cat >>confdefs.h <<\_ACEOF
+#define HAVE_GETHOSTBYADDR_R_8 1
+_ACEOF
+
+            echo "$as_me:$LINENO: result: yes" >&5
+echo "${ECHO_T}yes" >&6
+
+else
+  echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+
+            echo "$as_me:$LINENO: result: no" >&5
+echo "${ECHO_T}no" >&6
+
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+rm -f conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+
+fi
+
 #---------------------------------------------------------------------------
 #	Determine which interface to use to talk to the serial port.
 #	Note that #include lines must begin in leftmost column for