279 |
my $m4 = $ENV{"M4"} || '@M4@'; |
my $m4 = $ENV{"M4"} || '@M4@'; |
280 |
# Some non-GNU m4's don't reject the --help option, so give them /dev/null. |
# Some non-GNU m4's don't reject the --help option, so give them /dev/null. |
281 |
die "$me: need GNU m4 1.4 or later: $m4\n" |
die "$me: need GNU m4 1.4 or later: $m4\n" |
282 |
if system "$m4 --help </dev/null 2>&1 | fgrep reload-state >/dev/null"; |
if system "$m4 --help </dev/null 2>&1 | grep reload-state >/dev/null"; |
283 |
|
|
284 |
# Set some high recursion limit as the default limit, 250, has already |
# Set some high recursion limit as the default limit, 250, has already |
285 |
# been hit with AC_OUTPUT. Don't override the user's choice. |
# been hit with AC_OUTPUT. Don't override the user's choice. |