* Both were grievously broken, trying to run binaries which just
didn't exist. Check existence (and executability) of binaries
before actually running them.
* Python version checking had m4 quoting problems. Fix them by
liberal application of changequote.
* Both failed to quote the proposed binary names properly. This
probably wasn't a problem, but I wouldn't put money on it.
dnl right?
AC_DEFUN([mdw__PYTHON_VERSION],
dnl right?
AC_DEFUN([mdw__PYTHON_VERSION],
-[$1 -c 'from sys import *; v = argv[1]; vv = v.split("."); x = 0
+[changequote(<:, :>)dnl
+test -x $1 && dnl
+"$1" -c 'from sys import *; v = argv[1]; vv = v.split("."); x = 0
for i in range(len(vv)): x = x | (int(vv[i]) << (24 - i * 8))
for i in range(len(vv)): x = x | (int(vv[i]) << (24 - i * 8))
-exit(x > hexversion)' $2])
+exit(x > hexversion)' $2dnl
+changequote([, ])])
dnl --- *@-mdw_PROG_PYTHON-@* ---
dnl
dnl --- *@-mdw_PROG_PYTHON-@* ---
dnl
[AC_CACHE_CHECK([for Python version $1 or later], mdw_cv_prog_python,
[mdw_cv_prog_python="none"
for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
[AC_CACHE_CHECK([for Python version $1 or later], mdw_cv_prog_python,
[mdw_cv_prog_python="none"
for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
- case $p in /*) ;; *) p=`pwd`/$p ;; esac
+ case "$p" in /*) ;; *) p=`pwd`/$p ;; esac
if mdw__PYTHON_VERSION(["$p/python"], $1); then
mdw_cv_prog_python="$p/python"
break
if mdw__PYTHON_VERSION(["$p/python"], $1); then
mdw_cv_prog_python="$p/python"
break
dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
AC_DEFUN([mdw__PERL_VERSION], [mdw__PERL_VERSION_hack([$1], [$2])])
dnl AC_DEFUN relies on `[', `]' being quotes, so I have to drop down a level.
AC_DEFUN([mdw__PERL_VERSION], [mdw__PERL_VERSION_hack([$1], [$2])])
-changequote(<<, >>)
-define(<<mdw__PERL_VERSION_hack>>, <<$1 -e 'exit ($] < $2);' >&5 2>&5>>)
+changequote(<:, :>)
+define(<:mdw__PERL_VERSION_hack:>,
+<:test -x $1 && $1 -e 'exit ($] < $2);' >&5 2>&5:>)
changequote([, ])
dnl --- *@-mdw_PROG_PERL-@* ---
changequote([, ])
dnl --- *@-mdw_PROG_PERL-@* ---
[AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
[mdw_cv_prog_perl="none"
for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
[AC_CACHE_CHECK([for Perl version $1 or later], mdw_cv_prog_perl,
[mdw_cv_prog_perl="none"
for p in `echo "$PATH:/usr/local/bin" | tr ":" " "`; do
- case $p in /*) ;; *) p=`pwd`/$p ;; esac
+ case "$p" in /*) ;; *) p=`pwd`/$p ;; esac
if mdw__PERL_VERSION(["$p/perl"], $1); then
mdw_cv_prog_perl="$p/perl"
break
if mdw__PERL_VERSION(["$p/perl"], $1); then
mdw_cv_prog_perl="$p/perl"
break