Index: configure.ac
===================================================================
--- configure.ac	(revision 5390)
+++ configure.ac	(working copy)
@@ -466,6 +466,8 @@
 
 dnl Checks for libraries.
 
+PKG_PROG_PKG_CONFIG()
+
 if eval "test x$CURSES_LIB_NAME = x"; then
     if test "x$enable_utf8" != xno; then
 	PKG_CHECK_MODULES([NCURSESW], [ncursesw], [