AC_ARG_VAR([PERL], [command to execute perl programs])
AC_CHECK_PROGS([PERL], [perl], [false])
AM_CONDITIONAL([HAVE_PERL], [$PERL -e 'my $x = 42; exit $x'; test $? = 42])
AC_ARG_VAR([PERL], [command to execute perl programs])
AC_CHECK_PROGS([PERL], [perl], [false])
AM_CONDITIONAL([HAVE_PERL], [$PERL -e 'my $x = 42; exit $x'; test $? = 42])