diff --git a/MANIFEST b/MANIFEST
index 80dd5efe01..21b935b327 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -544,6 +544,7 @@ ext/Thread/unsync2.tx		Test thread implicit synchronisation
 ext/Thread/unsync3.tx		Test thread implicit synchronisation
 ext/Thread/unsync4.tx		Test thread implicit synchronisation
 ext/Time/HiRes/Changes		Time::HiRes extension
+ext/Time/HiRes/hints/dynixptx.pl	Hint for Time::HiRes for named architecture
 ext/Time/HiRes/hints/sco.pl	Hints for Time::HiRes for named architecture
 ext/Time/HiRes/HiRes.pm		Time::HiRes extension
 ext/Time/HiRes/HiRes.t		Test for Time::HiRes
diff --git a/ext/Time/HiRes/hints/dynixptx.pl b/ext/Time/HiRes/hints/dynixptx.pl
new file mode 100644
index 0000000000..0a1e5db38f
--- /dev/null
+++ b/ext/Time/HiRes/hints/dynixptx.pl
@@ -0,0 +1,5 @@
+# uname -v
+# V4.5.2
+# needs to explicitly link against libc to pull in usleep
+$self->{LIBS} = ['-lc'];
+
diff --git a/hints/dynixptx.sh b/hints/dynixptx.sh
index 11c6b5b3b0..b08dbc29d7 100644
--- a/hints/dynixptx.sh
+++ b/hints/dynixptx.sh
@@ -44,7 +44,7 @@ esac
 # Jarkko Hietaniemi November 1998
 
 case "$osvers" in
-4.4*) # configure doesn't find sockets, as they're in libsocket, not libc
+4.[45]*) # configure doesn't find sockets, as they're in libsocket, not libc
         d_socket='define'
         d_oldsock='undef'
         d_sockpair='define'