Re: Subtle bug in autoconf flex version test

Daniel Gustafsson <daniel@yesql.se> writes:
> The PGAC_PATH_FLEX version test in config/programs.m4 tests the major and minor
> versions with = rather than == which unless I’m missing something is performing
> assignment rather than testing equality?

Huh.  That's been broken since forever ... thanks for noticing!

> The attached diff makes the test
> trigger the expected warning on major/minor version on my OS X box (awk version
> 20070501).

Hm, is that a popular flex version?  I wonder whether we will get
complaints if we start warning about it.
        regards, tom lane