I have a configure(.in) that breaks all over the place with autoconf 2.53. How can I debug this? I used to just
$ sh -x ./configure >log 2>&1 and then take a look at log, but this doesn't work anymore. config.log is no help either. One thing I'm trying to find out is why the PATH arg is ignored in AC_PATH_PROG([file],[file],,[/usr/local/bin:/bin:/usr/bin:$PATH]) (The file command exists in both /usr/local/bin and /bin, but only the latter is found. The generated configure code looks ok.)
