Fails to build on GNU/Hurd due to PATH_MAX

[sthibaul]

Hello,

As reported on http://bugs.debian.org/838133 , flex currently fails to build on GNU/Hurd because it unconditionnally uses PATH_MAX. The attached patchpatch.txt makes it just dynamically allocate the proper buffer size.

Actually flex even bogusly used PATH_MAX, since it checked for "path" being not too long, but didn't take into account the additional length of "m4", so the proposed patch is actually a bugfix on !hurd too: if PATH contains a path with more than PATH_MAX characters, the additional "m4" two bytes were overflowing the m4_path array.

Samuel

[westes]

This patch does not apply against master. Could you check out the current tree and resubmit?know if you need a

[sthibaul]

Here is a rebased patch
patch.txt

[westes]

What email address should I use for you on this patch?

[sthibaul]

samuel.thibault@ens-lyon.org please