--- recode-3.6-orig/m4/flex.m4	2000-06-28 16:39:06.000000000 +0200

+++ recode-3.6/m4/flex.m4	2010-07-07 12:23:49.000000000 +0200

@@ -8,11 +8,8 @@

 dnl Look for flex or missing, then run AC_PROG_LEX and AC_DECL_YYTEXT

 AC_DEFUN(ad_AC_PROG_FLEX,

 [AC_CHECK_PROGS(LEX, flex, missing)

-if test "$LEX" = missing; then

+AS_IF([test "$LEX" = missing], [

   LEX="\$(top_srcdir)/$ac_aux_dir/missing flex"

   LEX_OUTPUT_ROOT=lex.yy

   AC_SUBST(LEX_OUTPUT_ROOT)dnl

-else

-  AC_PROG_LEX

-  AC_DECL_YYTEXT

-fi])

+])])