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Old March 24th, 2004, 10:54 AM
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Default php installation problem


I've installed an apache2.0 server on my linux system (it works fine) and tried to install php 4.3.4 enabling apache and mysql, when running configure however I got the following error:
  ./configure: line 2425: lex: command not found
  configure: error: cannot find output from lex; giving up
since I'm sort of new to linux I don't know what to do about it...
I was using these installation instructions: http://www.php.net/manual/en/install.apache2.php

Does anyone have any idea what it means and/or how to fix it?
Any help will be greatly appreciated.

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Old March 25th, 2004, 07:58 AM
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It looks like whoever built your version of PHP assumed people would have flex installed. Flex is a free reimplementation of a program callled "Lex" : a tool for generating programs that perform pattern-matching on text. If you install Flex, the compilation of PHP should proceed peacefully.

Zend recommend installing Flex and Bison before installing PHP:

You don't say which version (if any) of GNU/Linux distribution you are using, but here are debian's notes on flex:

I hope that helps
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Old March 25th, 2004, 10:43 AM
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I missed the flex and bison requirements for php, but after installing them php configuration and installation indeed proceeded as expected.

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