AC_INIT(main.c)AM_INIT_AUTOMAKE(fcrackzip,0.2.4)AM_CONFIG_HEADER(config.h)AC_PROG_CCAC_HEADER_STDCAC_CHECK_SIZEOF(short, 2)AC_CHECK_SIZEOF(int,   4)AC_CHECK_SIZEOF(long,  4)AC_C_CONSTAC_C_INLINEAC_CHECK_PROGS(PERL,perl5.00502 perl5.00501 perl5.00500 perl5.005 perl5.00404 perl5.004 perl5 perl)AM_CONDITIONAL(HAVE_PERL,test -n "$PERL")LIBOBJS=dnl configure depends on this, so we blindly define it anyways.AC_DEFINE(USE_UNIX_REDIRECTION)if test "$GCC" = yes; then   AC_DEFINE(USE_GCC_ASM)   AC_MSG_CHECKING(for pgcc/egcs)   case `$CC -v 2>&1` in      *pgcc-* )         AC_MSG_RESULT(pgcc)         ;;      *egcs-* )         AC_MSG_RESULT(egcs)         ;;   esac   AC_MSG_CHECKING(for x86 asm)   case `uname -m` in      i386 | i486 | i586 | ix86 | i86 )         AC_DEFINE(COMPILE_CPU,5)         AC_MSG_RESULT(pentium)         ;;      i686 | i786 )         AC_DEFINE(COMPILE_CPU,6)         AC_MSG_RESULT(pentiumpro)         ;;      *)         AC_MSG_RESULT(not x86)   esacelse   AC_MSG_RESULT(no gcc)fiAC_SUBST(PERL)AC_SUBST(LIBOBJS)AC_CHECK_HEADERS(stdbool.h getopt.h unistd.h sys/time.h)AC_CHECK_FUNCS(gettimeofday)AC_CHECK_FUNCS(getopt_long,,[LIBOBJS="$LIBOBJS getopt.o getopt1.o"])AC_OUTPUT(Makefile)