m4: syntax fix for lex change.

* m4/lex.m4: dnl caused "fiif" in output.

diff --git a/m4/lex.m4 b/m4/lex.m4
index 8830113d716c4682b873eac82955f0220a49c82f..8e26774eccd93e5856f65a8fcd84b7e828666679 100644 (file)
--- a/m4/lex.m4
+++ b/m4/lex.m4
@@ -7,13 +7,14 @@
 # with or without modifications, as long as this notice is preserved.
 
 # AM_PROG_LEX([OPTIONS])
-# --------------------
+# ----------------------
 # Autoconf leaves LEX=: if lex or flex can't be found.  Change that to a
 # "missing" invocation, for better error output.
 AC_DEFUN([AM_PROG_LEX],
 [AC_PREREQ([2.50])dnl
 AC_REQUIRE([AM_MISSING_HAS_RUN])dnl
-AC_PROVIDE_IFELSE([AC_PROG_LEX], [], [AC_PROG_LEX($@)])dnl
+AC_PROVIDE_IFELSE([AC_PROG_LEX], [], [AC_PROG_LEX($@)])
+dnl Do not dnl on previous line, or output has "fiif".
 if test "$LEX" = :; then
   LEX=${am_missing_run}flex
 fi])