--- autoconf/ast_check_pwlib.m4	(Asterisk 15.2)
+++ autoconf/ast_check_pwlib.m4	(working copy)
@@ -106 +106 @@
-        AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/local/bin$PATH_SEPARATOR/usr/local/share/pwlib/make)
+        AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/local/bin$PATH_SEPARATOR/usr/local/share/ptlib/make$PATH_SEPARATOR/usr/local/share/pwlib/make)
@@ -124 +124 @@
-          AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/bin$PATH_SEPARATOR/usr/share/pwlib/make)
+          AC_PATH_PROG(PTLIB_CONFIG, ptlib-config, , /usr/bin$PATH_SEPARATOR/usr/share/ptlib/make$PATH_SEPARATOR/usr/share/pwlib/make)