From f6d4c27f49cfe5c411e6388333e7db6917a60560 Mon Sep 17 00:00:00 2001
From: Francis Dupont <fdupont@isc.org>
Date: Sat, 15 Oct 2016 11:20:55 +0200
Subject: Added check for nanosleep in -lrt

---
 configure | 53 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 53 insertions(+)

(limited to 'configure')

diff --git a/configure b/configure
index 5fce52b7..6d8c1a9e 100755
--- a/configure
+++ b/configure
@@ -6686,6 +6686,59 @@ if test "$ac_res" != no; then :
 fi
 
 
+# For some Solaris nanosleep is found by BIND in librt
+have_nanosleep="no"
+ac_fn_c_check_func "$LINENO" "nanosleep" "ac_cv_func_nanosleep"
+if test "x$ac_cv_func_nanosleep" = xyes; then :
+  have_nanosleep="yes"
+fi
+
+if test "$have_nanosleep" = "no"; then
+	{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for nanosleep in -lrt" >&5
+$as_echo_n "checking for nanosleep in -lrt... " >&6; }
+if ${ac_cv_lib_rt_nanosleep+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  ac_check_lib_save_LIBS=$LIBS
+LIBS="-lrt  $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h.  */
+
+/* Override any GCC internal prototype to avoid an error.
+   Use char because int might match the return type of a GCC
+   builtin and then its argument prototype would still apply.  */
+#ifdef __cplusplus
+extern "C"
+#endif
+char nanosleep ();
+int
+main ()
+{
+return nanosleep ();
+  ;
+  return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+  ac_cv_lib_rt_nanosleep=yes
+else
+  ac_cv_lib_rt_nanosleep=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+    conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_rt_nanosleep" >&5
+$as_echo "$ac_cv_lib_rt_nanosleep" >&6; }
+if test "x$ac_cv_lib_rt_nanosleep" = xyes; then :
+  have_nanosleep="rt"
+fi
+
+fi
+if test "$have_nanosleep" = "rt"; then
+	LIBS="-lrt $LIBS"
+fi
+
 # check for /dev/random (declares HAVE_DEV_RANDOM)
 { $as_echo "$as_me:${as_lineno-$LINENO}: checking for random device" >&5
 $as_echo_n "checking for random device... " >&6; }
-- 
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