note 57366 added to install.problems

hello everyone from php community i have trouble during an installation of Apache2/php5.0.5 on my mandrake 10.1 linux system installation of Apache2 is OK. my problem is during the "configure" step of PHP that's what the compiler said to me when i try to configure PHP : "checkin lex ouput file root... ./configure: line 2428: lex command not found" "configure: error: cannot find output from lex; giving up" i think there's a problem with lex execution but i have no idea of what it is and why it do that............ :-( i'm very unhappy cause i wanna test sh execution from php directives and i can't use a webserver on linux i'm bad and not powerful.................. can someone help me please :-) ---- Manual Page -- http://www.php.net/manual/en/install.problems.php Edit -- http://master.php.net/manage/user-notes.php?action=edit+57366 Delete: added to the manual -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes&reason=added+to+the+manual Delete: bad code -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes&reason=bad+code Delete: spam -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes&reason=spam Delete: useless -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes&reason=useless Delete: non-english -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes&reason=non-english Delete: already in docs -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes&reason=already+in+docs Delete: other reasons -- http://master.php.net/manage/user-notes.php?action=delete+57366&report=yes Reject -- http://master.php.net/manage/user-notes.php?action=reject+57366&report=yes Search -- http://master.php.net/manage/user-notes.php