diff --git a/src/template/hpux b/src/template/hpux
index ce4d93c..6349ae5 100644
--- a/src/template/hpux
+++ b/src/template/hpux
@@ -3,7 +3,9 @@
 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE_EXTENDED"
 
 if test "$GCC" != yes ; then
-  CC="$CC -Ae"
+  # -Ae enables C89/C99
+  # +W2177 should disable warnings about unused static inlines
+  CC="$CC -Ae +W2177"
   CFLAGS="+O2"
 fi