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

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This is required in case a wrapper or symlink is used. This patch
has also been sent upstream, awaiting moderation.

Reviewed-by: Matt Turner <mattst88@gmail.com>
Signed-off-by: Andreas Oberritter <obi@saftware.de>
This commit is contained in:
Andreas Oberritter 2013-04-15 22:46:06 +02:00 committed by Matt Turner
parent 2da0bd0526
commit a48be954ce
1 changed files with 1 additions and 1 deletions
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2
m4/ax_prog_flex.m4
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@ -53,7 +53,7 @@ AC_DEFUN([AX_PROG_FLEX], [
AC_REQUIRE([AC_PROG_EGREP])
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"],