diff --git a/ares/m4/cares-compilers.m4 b/ares/m4/cares-compilers.m4
index 2bfe85664..5e5b3a82c 100644
--- a/ares/m4/cares-compilers.m4
+++ b/ares/m4/cares-compilers.m4
@@ -16,7 +16,7 @@
 #***************************************************************************
 
 # File version for 'aclocal' use. Keep it a single number.
-# serial 50
+# serial 51
 
 
 dnl CARES_CHECK_COMPILER
@@ -901,10 +901,6 @@ AC_DEFUN([CARES_SET_COMPILER_WARNING_OPTS], [
         if test "$want_warnings" = "yes"; then
           dnl Issue all warnings
           tmp_CFLAGS="$tmp_CFLAGS +w1"
-          dnl Due to the HP-UX socklen_t issue it is insane to use the +w1
-          dnl warning level. Until the issue is somehow fixed we will just
-          dnl use the +w2 warning level.
-          dnl tmp_CFLAGS="$tmp_CFLAGS +w2"
         fi
         ;;
         #
diff --git a/m4/curl-compilers.m4 b/m4/curl-compilers.m4
index e1337d961..9a0c66bf8 100644
--- a/m4/curl-compilers.m4
+++ b/m4/curl-compilers.m4
@@ -22,7 +22,7 @@
 #***************************************************************************
 
 # File version for 'aclocal' use. Keep it a single number.
-# serial 50
+# serial 51
 
 
 dnl CURL_CHECK_COMPILER
@@ -907,10 +907,6 @@ AC_DEFUN([CURL_SET_COMPILER_WARNING_OPTS], [
         if test "$want_warnings" = "yes"; then
           dnl Issue all warnings
           tmp_CFLAGS="$tmp_CFLAGS +w1"
-          dnl Due to the HP-UX socklen_t issue it is insane to use the +w1
-          dnl warning level. Until the issue is somehow fixed we will just
-          dnl use the +w2 warning level.
-          dnl tmp_CFLAGS="$tmp_CFLAGS +w2"
         fi
         ;;
         #