[sr #110269] AC_PROG_LEX failing

[Paul Eggert]

Update of sr #110269 (project autoconf):

                  Status:                    None => Done                   

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Follow-up Comment #6:

Thanks for the bug report and detailed analysis. I looked into the commit that
you mentioned, and the problem seems to be that it introduced an AC_MSG_ERROR
which causes 'configure' to fail entirely, whereas what it should do is give
up on 'flex'. In your case you have a cross-build where 'flex' (on your build
platform) is available but the 'flex' library (on your host platform) is not,
and this causes the AC_MSG_ERROR to trigger.

For your particular case I expect it's better for 'configure' to behave as if
'flex' does not exist, so I installed the attached patch into Autoconf master
on Savannah. Please give it a try.

I am boldly marking this bug report as "done" but will change its status back
if the patch doesn't fix things for you.

(file #49491)
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Additional Item Attachment:

File name: 0001-Fix-AC_PROG_LEX-regression.patch Size:2 KB
   
<https://file.savannah.gnu.org/file/0001-Fix-AC_PROG_LEX-regression.patch?file_id=49491>



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