- my $configure_in=_readfile("configure.in");
- do { $$_=1 if !defined($$_) && $configure_in=~/^AM_GNU_GETTEXT\b/m; }
+ my $configure_name;
+ do { $configure_name||=$_ if -f $_ } for ("configure.in");
+ do { $configure_name||=$_ if -f $_ } for ("configure.ac");
+ $configure_name or confess "Cannot find configure.{in,ac}";
+ my $configure_in=_readfile($configure_name);
+ do { $$_=1 if !defined($$_) && $configure_in=~/^\s*AM_GNU_GETTEXT\b/m; }