- Issue #14321: Do not run pgen during the build if files are up to date.
diff --git a/configure.ac b/configure.ac
index 47ba787..a38a5cc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -848,6 +848,7 @@
 	fi
 esac
 AC_PROG_INSTALL
+AC_PROG_MKDIR_P
 
 # Not every filesystem supports hard links
 AC_SUBST(LN)