* configure.ac: Comment.

diff --git a/configure.ac b/configure.ac
index 1381f3669dd6b16f231f4dc65e5063ead1610d28..d398e31f89e0f5a1e2ff8b84f979748ab59ad031 100644 (file)
--- a/configure.ac
+++ b/configure.ac
@@ -84,6 +84,7 @@ AC_CONFIG_HEADERS(src/config.h:src/config.in)
 AC_CONFIG_SRCDIR(src/lisp.h)
 AC_CONFIG_AUX_DIR(build-aux)
 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
+dnl With older versions this is a no-op.
 AC_CONFIG_MACRO_DIR(m4)
 
 xcsdkdir=