Commit a48be954 authored by Andreas Oberritter's avatar Andreas Oberritter Committed by Matt Turner

ax_prog_flex.m4: change grep syntax to accept e.g. flex.real

This is required in case a wrapper or symlink is used. This patch
has also been sent upstream, awaiting moderation.
Reviewed-by: Matt Turner's avatarMatt Turner <>
Signed-off-by: default avatarAndreas Oberritter <>
parent 2da0bd05
......@@ -53,7 +53,7 @@ AC_DEFUN([AX_PROG_FLEX], [
AC_CACHE_CHECK([if flex is the lexer generator],[ax_cv_prog_flex],[
AS_IF([$LEX --version 2>/dev/null | $EGREP -q '^flex '],
AS_IF([$LEX --version 2>/dev/null | $EGREP -q '^\<flex\>'],
[ax_cv_prog_flex=yes], [ax_cv_prog_flex=no])
AS_IF([test "$ax_cv_prog_flex" = "yes"],
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