diff --git a/NEWS b/NEWS
index ad8d0ae15ac..5efec222575 100644
--- a/NEWS
+++ b/NEWS
@@ -117,6 +117,8 @@
   both IPv4 and IPv6 addresses, on Windows). (Gustavo, Pierre)
 - Fixed bug #50524 (proc_open on Windows does not respect cwd as it does on
   other platforms). (Pierre)
+- Fixed bug #50345 (nanosleep not detected properly on some solaris versions).
+  (Ulf, Tony)
 - Fixed bug #49215 (make fails on glob_wrapper). (Felipe)
 - Fixed bug #48831 (php -i has different output to php --ini). (Richard, 
   Pierre)
diff --git a/configure.in b/configure.in
index ba1f73181db..0efb672e634 100644
--- a/configure.in
+++ b/configure.in
@@ -611,7 +611,7 @@ asprintf \
 )
 
 dnl Some systems (like OpenSolaris) do not have nanosleep in libc
-PHP_CHECK_FUNC(nanosleep, rt)
+PHP_CHECK_FUNC_LIB(nanosleep, rt)
 
 dnl Check for getaddrinfo, should be a better way, but...
 dnl Also check for working getaddrinfo