aclocal.m4

也是遗传算法的源代码

irix*)
  ac_symcode='[BCDEGRST]'
  ;;
solaris*)
  ac_symcode='[BDT]'
  ;;
esac

# If we're using GNU nm, then use its standard symbol codes.
if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
  ac_symcode='[ABCDGISTW]'
fi
changequote([,])dnl

# Try without a prefix undercore, then with it.
for ac_symprfx in "" "_"; do

  ac_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ 	]\($ac_symcode\)[ 	][ 	]*\($ac_symprfx\)$ac_sympat$/$ac_symxfrm/p'"

  # Check to see that the pipe works correctly.
  ac_pipe_works=no
  rm -f conftest.$ac_ext
  cat > conftest.$ac_ext <<EOF
#ifdef __cplusplus
extern "C" {
#endif
char nm_test_var;
void nm_test_func(){}
#ifdef __cplusplus
}
#endif
int main(){nm_test_var='a';nm_test_func;return 0;}
EOF

  if AC_TRY_EVAL(ac_compile); then
    # Now try to grab the symbols.
    ac_nlist=conftest.nm
  
    if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then

      # Try sorting and uniquifying the output.
      if sort "$ac_nlist" | uniq > "$ac_nlist"T; then
	mv -f "$ac_nlist"T "$ac_nlist"
      else
	rm -f "$ac_nlist"T
      fi

      # Make sure that we snagged all the symbols we need.
      if egrep ' nm_test_var$' "$ac_nlist" >/dev/null; then
	if egrep ' nm_test_func$' "$ac_nlist" >/dev/null; then
	  cat <<EOF > conftest.c
#ifdef __cplusplus
extern "C" {
#endif

EOF
	  # Now generate the symbol file.
	  eval "$ac_global_symbol_to_cdecl"' < "$ac_nlist" >> conftest.c'

	  cat <<EOF >> conftest.c
#if defined (__STDC__) && __STDC__
# define lt_ptr_t void *
#else
# define lt_ptr_t char *
# define const
#endif

/* The mapping between symbol names and symbols. */
const struct {
  const char *name;
  lt_ptr_t address;
}
changequote(,)dnl
lt_preloaded_symbols[] =
changequote([,])dnl
{
EOF
	sed 's/^. \(.*\) \(.*\)$/  {"\2", (lt_ptr_t) \&\2},/' < "$ac_nlist" >> conftest.c
	cat <<\EOF >> conftest.c
  {0, (lt_ptr_t) 0}
};

#ifdef __cplusplus
}
#endif
EOF
	  # Now try linking the two files.
	  mv conftest.$ac_objext conftestm.$ac_objext
	  ac_save_LIBS="$LIBS"
	  ac_save_CFLAGS="$CFLAGS"
	  LIBS="conftestm.$ac_objext"
	  CFLAGS="$CFLAGS$no_builtin_flag"
	  if AC_TRY_EVAL(ac_link) && test -s conftest; then
	    ac_pipe_works=yes
	  else
	    echo "configure: failed program was:" >&AC_FD_CC
	    cat conftest.c >&AC_FD_CC
	  fi
	  LIBS="$ac_save_LIBS"
	  CFLAGS="$ac_save_CFLAGS"
	else
	  echo "cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
	fi
      else
	echo "cannot find nm_test_var in $ac_nlist" >&AC_FD_CC
      fi
    else
      echo "cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
    fi
  else
    echo "$progname: failed program was:" >&AC_FD_CC
    cat conftest.c >&AC_FD_CC
  fi
  rm -rf conftest*

  # Do not use the global_symbol_pipe unless it works.
  if test "$ac_pipe_works" = yes; then
    if test x"$ac_symprfx" = x"_"; then
      ac_cv_sys_symbol_underscore=yes
    else
      ac_cv_sys_symbol_underscore=no
    fi
    break
  else
    ac_cv_sys_global_symbol_pipe=
  fi
done
])

ac_result=yes
if test -z "$ac_cv_sys_global_symbol_pipe"; then
   ac_result=no
fi
AC_MSG_RESULT($ac_result)
])

# AC_SYS_LIBTOOL_CYGWIN - find tools needed on cygwin
AC_DEFUN(AC_SYS_LIBTOOL_CYGWIN,
[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
AC_CHECK_TOOL(AS, as, false)
])

# AC_SYS_SYMBOL_UNDERSCORE - does the compiler prefix global symbols
#                            with an underscore?
AC_DEFUN(AC_SYS_SYMBOL_UNDERSCORE,
[AC_REQUIRE([AC_PROG_NM])dnl
AC_REQUIRE([AC_SYS_NM_PARSE])dnl
AC_MSG_CHECKING([for _ prefix in compiled symbols])
AC_CACHE_VAL(ac_cv_sys_symbol_underscore,
[ac_cv_sys_symbol_underscore=no
cat > conftest.$ac_ext <<EOF
void nm_test_func(){}
int main(){nm_test_func;return 0;}
EOF
if AC_TRY_EVAL(ac_compile); then
  # Now try to grab the symbols.
  ac_nlist=conftest.nm
  if AC_TRY_EVAL(NM conftest.$ac_objext \| $ac_cv_sys_global_symbol_pipe \> $ac_nlist) && test -s "$ac_nlist"; then
    # See whether the symbols have a leading underscore.
    if egrep '^. _nm_test_func' "$ac_nlist" >/dev/null; then
      ac_cv_sys_symbol_underscore=yes
    else
      if egrep '^. nm_test_func ' "$ac_nlist" >/dev/null; then
	:
      else
	echo "configure: cannot find nm_test_func in $ac_nlist" >&AC_FD_CC
      fi
    fi
  else
    echo "configure: cannot run $ac_cv_sys_global_symbol_pipe" >&AC_FD_CC
  fi
else
  echo "configure: failed program was:" >&AC_FD_CC
  cat conftest.c >&AC_FD_CC
fi
rm -rf conftest*
])
AC_MSG_RESULT($ac_cv_sys_symbol_underscore)
USE_SYMBOL_UNDERSCORE=${ac_cv_sys_symbol_underscore=no}
AC_SUBST(USE_SYMBOL_UNDERSCORE)dnl
])

# AC_CHECK_LIBM - check for math library
AC_DEFUN(AC_CHECK_LIBM, [
AC_CHECK_LIB(mw, _mwvalidcheckl)
AC_CHECK_LIB(m, cos)
])

# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl convenience library, adds --enable-ltdl-convenience to
# the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
# is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
# to be `${top_builddir}/libltdl'.  Make sure you start DIR with
# '${top_builddir}/' (note the single quotes!) if your package is not
# flat, and, if you're not using automake, define top_builddir as
# appropriate in the Makefiles.
AC_DEFUN(AC_LIBLTDL_CONVENIENCE, [
  case "$enable_ltdl_convenience" in
  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;
  "") enable_ltdl_convenience=yes
      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;
  esac
  LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdlc.la
])

# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for
# the libltdl installable library, and adds --enable-ltdl-install to
# the configure arguments.  Note that LIBLTDL is not AC_SUBSTed, nor
# is AC_CONFIG_SUBDIRS called.  If DIR is not provided, it is assumed
# to be `${top_builddir}/libltdl'.  Make sure you start DIR with
# '${top_builddir}/' (note the single quotes!) if your package is not
# flat, and, if you're not using automake, define top_builddir as
# appropriate in the Makefiles.
# In the future, this macro may have to be called after AC_PROG_LIBTOOL.
AC_DEFUN(AC_LIBLTDL_INSTALLABLE, [
  AC_CHECK_LIB(ltdl, main, LIBLTDL="-lltdl", [
    case "$enable_ltdl_install" in
    no) AC_MSG_WARN([libltdl not installed, but installation disabled]) ;;
    "") enable_ltdl_install=yes
        ac_configure_args="$ac_configure_args --enable-ltdl-install" ;;
    esac
  ])
  if test x"$enable_ltdl_install" != x"no"; then
    LIBLTDL=ifelse($#,1,$1,['${top_builddir}/libltdl'])/libltdl.la
  fi
])

dnl old names
AC_DEFUN(AM_PROG_LIBTOOL, [indir([AC_PROG_LIBTOOL])])dnl
AC_DEFUN(AM_ENABLE_SHARED, [indir([AC_ENABLE_SHARED], $@)])dnl
AC_DEFUN(AM_ENABLE_STATIC, [indir([AC_ENABLE_STATIC], $@)])dnl
AC_DEFUN(AM_DISABLE_SHARED, [indir([AC_DISABLE_SHARED], $@)])dnl
AC_DEFUN(AM_DISABLE_STATIC, [indir([AC_DISABLE_STATIC], $@)])dnl
AC_DEFUN(AM_PROG_LD, [indir([AC_PROG_LD])])dnl
AC_DEFUN(AM_PROG_NM, [indir([AC_PROG_NM])])dnl
AC_DEFUN(AM_SYS_NM_PARSE, [indir([AC_SYS_NM_PARSE])])dnl
AC_DEFUN(AM_SYS_SYMBOL_UNDERSCORE, [indir([AC_SYS_SYMBOL_UNDERSCORE])])dnl
AC_DEFUN(AM_SYS_LIBTOOL_CYGWIN, [indir([AC_SYS_LIBTOOL_CYGWIN])])dnl

dnl ----------------------------------------------------------------------
dnl Amygdala checks
AC_DEFUN(AMYG_SET_PREFIX,
[
  unset CDPATH
  if test "x$prefix" = "xNONE"; then
    prefix=$ac_default_prefix
    ac_configure_args="$ac_configure_args --prefix $prefix"
  fi
])

dnl Based on aclocal.m4 from KDevelop 2.0.1
dnl AC_REMOVE_FORBIDDEN removes forbidden arguments from variables
dnl use: AC_REMOVE_FORBIDDEN(CC, [-forbid -bad-option whatever])
dnl it's all white-space separated
AC_DEFUN(AC_REMOVE_FORBIDDEN,
[ __val=$$1
  __forbid=" $2 "
  if test -n "$__val"; then
    __new=""
    ac_save_IFS=$IFS
    IFS=" 	"
    for i in $__val; do
      case "$__forbid" in
        *" $i "*) AC_MSG_WARN([found forbidden $i in $1, removing it]) ;;
	*) # Careful to not add spaces, where there were none, because otherwise
	   # libtool gets confused, if we change e.g. CXX
	   if test -z "$__new" ; then __new=$i ; else __new="$__new $i" ; fi ;;
      esac
    done
    IFS=$ac_save_IFS
    $1=$__new
  fi
])

dnl AC_VALIDIFY_CXXFLAGS checks for forbidden flags the user may have given
AC_DEFUN(AC_VALIDIFY_CXXFLAGS,
[dnl
 AC_REMOVE_FORBIDDEN(CXX, [-fno-rtti -rpath])
 AC_REMOVE_FORBIDDEN(CXXFLAGS, [-fno-rtti -rpath])
])

AC_DEFUN(AMYG_ADD_DEPENDENCIES,
[
   [A]M_DEPENDENCIES(CC)
   [A]M_DEPENDENCIES(CXX)
])

AC_DEFUN(AMYG_CHECK_COMPILER_FLAG,
[
    dnl AC_REQUIRE([AC_CHECK_COMPILERS]) <- breaks with autoconf 2.50
    AC_MSG_CHECKING(whether $CXX supports -$1)
    amyg_cache=`echo $1 | sed 'y%.=/+-%___p_%'`
    AC_CACHE_VAL(amyg_cv_prog_cxx_$amyg_cache,
    [
        echo 'int main() { return 0; }' >conftest.cc
        eval "amyg_cv_prog_cxx_$amyg_cache=no"
        if test -z "`$CXX -$1 -c conftest.cc 2>&1`"; then
            if test -z "`$CXX -$1 -o conftest conftest.o 2>&1`"; then
                eval "amyg_cv_prog_cxx_$amyg_cache=yes"
            fi
        fi
        rm -f conftest*
    ])
    if eval "test \"`echo '$amyg_cv_prog_cxx_'$amyg_cache`\" = yes"; then
        AC_MSG_RESULT(yes)
        :
        $2
    else
        AC_MSG_RESULT(no)
        :
        $3
    fi
])

AC_DEFUN(AC_CHECK_COMPILERS,
[
  AC_ARG_ENABLE(debug,[  --enable-debug          enables debug symbols [default=no]],
  [
   if test $enableval = "no"; dnl
     then
       amyg_use_debug_code="no"
       amyg_use_debug_define="yes"
     else
       amyg_use_debug_code="yes"
       amyg_use_debug_define="no"
   fi
  ],
    [amyg_use_debug_code="no"
      amyg_use_debug_define="no"
  ])

  dnl Just for configure --help
  AC_ARG_ENABLE(dummyoption,[  --disable-debug         disables debug output and debug symbols [default=no]],[],[])

  dnl enable-strict is not yet implemented, but left in place for future (possible) development
  AC_ARG_ENABLE(strict,[  --enable-strict         compiles with strict compiler options (may not work!)],
   [
    if test $enableval = "no"; then
         amyg_use_strict_options="no"
       else
         amyg_use_strict_options="yes"
    fi
   ], [amyg_use_strict_options="no"])

  AC_ARG_ENABLE(profile,[  --enable-profile        creates profiling infos [default=no]],
    [amyg_use_profiling=$enableval],
    [amyg_use_profiling="no"]
  )

  AC_ARG_ENABLE(optimize,[  --enable-optimize       enables optimization flag [default=no]],
    [amyg_use_optimize=$enableval],
    [amyg_use_optimize="no"]
  )

  AC_ARG_ENABLE(expensive,[  --enable-expensive      enables expensive optimizations [default=no]],
    [amyg_use_expensive=$enableval],
    [amyg_use_expensive="no"]
  )

  dnl this prevents stupid AC_PROG_CC to add "-g" to the default CFLAGS
  CFLAGS=" $CFLAGS"

  AC_PROG_CC

  if test "$GCC" = "yes"; then
    if test "$amyg_use_debug_code" = "yes"; then
      CFLAGS="-g $CFLAGS"
      case $host in
        *-*-linux-gnu)
          CFLAGS="-ansi -W -Wall -Wshadow -Wpointer-arith -Wmissing-prototypes -Wwrite-strings -D_XOPEN_SOURCE=500 -D_BSD_SOURCE $CFLAGS"
        ;;
      esac
    else
      CFLAGS="-O2 $CFLAGS"
    fi
  fi

  if test "$amyg_use_debug_define" = "yes"; then
    CFLAGS="-DNDEBUG $CFLAGS"
  fi

  case "$host" in
  *-*-sysv4.2uw*) CFLAGS="-D_UNIXWARE $CFLAGS";;