[sr #110312] 2.69b: broken AC_PROG_LEX macro

Update of sr #110312 (project autoconf):

                  Status:                    None => Need Info              

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Follow-up Comment #7:

I cannot reproduce the problem with this configure.ac:


AC_INIT([bug-110312], [1.0])
AC_PROG_LEX
AC_OUTPUT


It prints "checking for lex library... none needed" regardless of whether
libl.a or libfl.so is present on the system.  In fact, it says the same thing
even if *none* of the lib{f,}l.* files that my system usually has are
available.  There must be something else going on.

I'm going to need that minimal configure.ac I asked for on Thursday, and I'm
also going to need the config.log produced when you run it on your system.

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