Re: AC_PATH_PROG fails in 2.53?

[Akim Demaille]

| I'm having a very strange problem since I upgraded to 2.53 this morning.  I 
have some m4 code that previously worked under autoconf-2.52 but now it fails 
under 2.53.  I'm trying to check for the script cgicc-config in the given path. 
 configure is failing with the message
| configure: error: cgicc-config not found in 
/tmp/bin:/usr/local/bin:/usr/bin:/bin:/usr/bin/X11:/usr/games:/usr/bin:/usr/X11R6/bin:/usr/mozilla:/usr/mysql/bin:/home/sbooth/bin:/usr/X11R6/bin:/usr/mozilla:/usr/mysql/bin:/home/sbooth/bin
| make: *** [config.status] Error 1
| 
| but
| 
| % ls -l /tmp/bin/
| total 4
| -rwxr-xr-x    1 sbooth   sbooth       2204 Mar  9 11:46 cgicc-config*
| 
| 
| The m4 code I've written to check for the script looks like this:
| 
| dnl
| dnl CGICC_CHECK_CONFIG([PREFIX])
| dnl
| dnl Check for the configuration script 'cgicc-config' in PATH.  Define
| dnl  the macros cgicc_libdir and cgicc_includedir to the values
| dnl  obtained from 'cgicc-config'.
| dnl
| AC_DEFUN(CGICC_CHECK_CONFIG, [
|   AC_PATH_PROG(CGICC_CONFIG, cgicc-config, no, [$1/bin:$PATH])
|   if test "$CGICC_CONFIG" = no; then
|     AC_MSG_ERROR(cgicc-config not found in $1/bin:$PATH)
|   fi
| 
|   cgicc_libdir=`$CGICC_CONFIG --libdir`
|   cgicc_includedir=`$CGICC_CONFIG --includedir`
| 
|   AC_SUBST(cgicc_libdir)
|   AC_SUBST(cgicc_includedir)
| ])
| 

It looks correct.  What does sh -x ./configure show about this chunk?