aclocal.m4

移植到WLIT项目的redboot源代码

dnl --------------------------------------------------------------------
dnl Convert a cygwin pathname to something acceptable to VC++ (but
dnl still invoked from bash and cygwin's make). This means using
dnl the cygpath utility and then translating any backslashes into
dnl forward slashes to avoid confusing make.

AC_DEFUN(CYG_AC_MSVC_PATH, [
    AC_REQUIRE([CYG_AC_PROG_MSVC])
    ifelse($#, 1, , AC_MSG_ERROR("Invalid number of arguments passed to CYG AC_MSVC_PATH"))

    if test "${MSVC}" = "yes" ; then
      $1=`cygpath -w ${$1} | tr \\\\\\\\ /`
    fi
])


dnl --------------------------------------------------------------------
dnl Work out details of the Tcl installation that should be used.
dnl This adds two command-line options, --with-tcl=<prefix> to
dnl specify the Tcl install directory, and --with-tcl-version=<vsn>
dnl to control which version of Tcl should be used.
dnl
dnl On Unix systems and under cygwin there should be a file
dnl $(tcl_prefix)/lib/tclConfig.sh containing all the information
dnl needed for Tcl. This file are consulted and the appropriate
dnl variables extracted.
dnl
dnl To confuse matters, subtly different naming conventions are used
dnl under Unix and NT. Under Unix the Tcl library will be called
dnl libtcl8.0.a, libtcl8.1.a, etc. with a dot between the major and
dnl minor version. Under NT (including cygwin) the library will be
dnl called tcl80.lib, dnl tcl81.lib, libtcl80.a, libtcl81.a, etc.
dnl without a dot.
dnl
dnl The macro should really assume that it is running inside devo,
dnl with tcl and tcl8.1 directories present and already configured.
dnl This is tricky for a number of reasons, including confusion about
dnl the meaning of top_srcdir.
dnl
dnl This macro defines four new shell variables which will be
dnl substituted (typically into Makefile.in):
dnl
dnl    cyg_ac_tcl_version	- the version of Tcl that is to be used
dnl    cyg_ac_tcl_incdir	- location of <tcl.h> etc al
dnl    cyg_ac_tcl_libdir	- location of libtcl.a/tcl.lib etc.
dnl    cyg_ac_tcl_libs		- all of the libraries that are needed for Tcl

AC_DEFUN(CYG_AC_PATH_TCL, [

AC_REQUIRE([CYG_AC_PROG_MSVC])
AC_REQUIRE([AC_CYGWIN])

dnl Look for the version of Tcl. If none is specified, default to
dnl 8.0 under VC++ and cygwin, nothing under Unix. A version has to be
dnl specified under NT because there is no symbolic link from libtcl.a
dnl to whatever happens to be the most recent installed version.

AC_MSG_CHECKING(for Tcl version)
AC_ARG_WITH(tcl-version,[ --with-tcl-version=<vsn> version of Tcl to be used],[
  cyg_ac_tcl_version=${with_tcl_version}
],[
  if test "${MSVC}" = "yes" ; then
    cyg_ac_tcl_version=80
  else
    if test "${ac_cv_cygwin}" = "yes" ; then
      cyg_ac_tcl_version=80
    else
      cyg_ac_tcl_version=""
    fi
  fi
])
AC_MSG_RESULT(${cyg_ac_tcl_version})
AC_SUBST(cyg_ac_tcl_version)

dnl Where is the Tcl installation? By default assume Tcl is already
dnl installed in the same place as the eCos host-side.
AC_ARG_WITH(tcl,[ --with-tcl-header=<path>        location of Tcl header])
AC_ARG_WITH(tcl,[ --with-tcl-lib=<path>        location of Tcl libraries])

AC_MSG_CHECKING(for Tcl installation)
AC_ARG_WITH(tcl,[ --with-tcl=<path>        location of Tcl header and libraries],[
  cyg_ac_tcl_incdir=${with_tcl}/include
  cyg_ac_tcl_libdir=${with_tcl}/lib
],[
  if test "${with_tcl_header}" = "no"; then
    cyg_ac_tcl_incdir=${prefix}/include
  else
    with_tcl=yes
    cyg_ac_tcl_incdir=${with_tcl_header}/include
  fi

  if test "${with_tcl_lib}" = "no"; then
    cyg_ac_tcl_libdir=${prefix}/lib
  else
    with_tcl=yes
    cyg_ac_tcl_libdir=${with_tcl_lib}/lib
  fi
])
AC_MSG_RESULT(${cyg_ac_tcl_libdir})

dnl Sanity check, make sure that there is a tcl.h header file.
dnl If not then there is no point in proceeding.
if test \! -r ${cyg_ac_tcl_incdir}/tcl.h ; then
  AC_MSG_ERROR(unable to locate Tcl header file tcl.h)
fi

dnl If using VC++ then there is no tclConfig.sh file, so the
dnl library information has to be hard-wired. Otherwise ther
dnl should be a tclConfig.sh file containing the necessary information.
if test "${MSVC}" = "yes" ; then
  cyg_ac_tcl_libs="tcl${cyg_ac_tcl_version}.lib"
  CYG_AC_MSVC_PATH(cyg_ac_tcl_incdir)
  CYG_AC_MSVC_PATH(cyg_ac_tcl_libdir)
else
  if test \! -r ${cyg_ac_tcl_libdir}/tclConfig.sh ; then
    AC_MSG_ERROR(unable to locate Tcl config file tclConfig.sh)
  else
    . ${cyg_ac_tcl_libdir}/tclConfig.sh
    cyg_ac_tcl_libs="-ltcl${cyg_ac_tcl_version} ${TCL_LIBS}"
  fi
fi

AC_SUBST(cyg_ac_tcl_incdir)
AC_SUBST(cyg_ac_tcl_libdir)
AC_SUBST(cyg_ac_tcl_libs)
AC_SUBST(cyg_ac_tk_libs)
])




# Do all the work for Automake.  This macro actually does too much --
# some checks are only needed if your package does certain things.
# But this isn't really a big deal.

# serial 1

dnl Usage:
dnl AM_INIT_AUTOMAKE(package,version, [no-define])

AC_DEFUN(AM_INIT_AUTOMAKE,
[AC_REQUIRE([AC_PROG_INSTALL])
PACKAGE=[$1]
AC_SUBST(PACKAGE)
VERSION=[$2]
AC_SUBST(VERSION)
dnl test to see if srcdir already configured
if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then
  AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
fi
ifelse([$3],,
AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package]))
AC_REQUIRE([AM_SANITY_CHECK])
AC_REQUIRE([AC_ARG_PROGRAM])
dnl FIXME This is truly gross.
missing_dir=`cd $ac_aux_dir && pwd`
AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir)
AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir)
AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir)
AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir)
AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir)
AC_REQUIRE([AC_PROG_MAKE_SET])])

#
# Check to make sure that the build environment is sane.
#

AC_DEFUN(AM_SANITY_CHECK,
[AC_MSG_CHECKING([whether build environment is sane])
# Just in case
sleep 1
echo timestamp > conftestfile
# Do `set' in a subshell so we don't clobber the current shell's
# arguments.  Must try -L first in case configure is actually a
# symlink; some systems play weird games with the mod time of symlinks
# (eg FreeBSD returns the mod time of the symlink's containing
# directory).
if (
   set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null`
   if test "[$]*" = "X"; then
      # -L didn't work.
      set X `ls -t $srcdir/configure conftestfile`
   fi
   if test "[$]*" != "X $srcdir/configure conftestfile" \
      && test "[$]*" != "X conftestfile $srcdir/configure"; then

      # If neither matched, then we have a broken ls.  This can happen
      # if, for instance, CONFIG_SHELL is bash and it inherits a
      # broken ls alias from the environment.  This has actually
      # happened.  Such a system could not be considered "sane".
      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
alias in your environment])
   fi

   test "[$]2" = conftestfile
   )
then
   # Ok.
   :
else
   AC_MSG_ERROR([newly created file is older than distributed files!
Check your system clock])
fi
rm -f conftest*
AC_MSG_RESULT(yes)])

dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY)
dnl The program must properly implement --version.
AC_DEFUN(AM_MISSING_PROG,
[AC_MSG_CHECKING(for working $2)
# Run test in a subshell; some versions of sh will print an error if
# an executable is not found, even if stderr is redirected.
# Redirect stdin to placate older versions of autoconf.  Sigh.
if ($2 --version) < /dev/null > /dev/null 2>&1; then
   $1=$2
   AC_MSG_RESULT(found)
else
   $1="$3/missing $2"
   AC_MSG_RESULT(missing)
fi
AC_SUBST($1)])

# Define a conditional.

AC_DEFUN(AM_CONDITIONAL,
[AC_SUBST($1_TRUE)
AC_SUBST($1_FALSE)
if $2; then
  $1_TRUE=
  $1_FALSE='#'
else
  $1_TRUE='#'
  $1_FALSE=
fi])

# Add --enable-maintainer-mode option to configure.
# From Jim Meyering

# serial 1

AC_DEFUN(AM_MAINTAINER_MODE,
[AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  dnl maintainer-mode is disabled by default
  AC_ARG_ENABLE(maintainer-mode,
[  --enable-maintainer-mode enable make rules and dependencies not useful
                          (and sometimes confusing) to the casual installer],
      USE_MAINTAINER_MODE=$enableval,
      USE_MAINTAINER_MODE=no)
  AC_MSG_RESULT($USE_MAINTAINER_MODE)
  AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes)
  MAINT=$MAINTAINER_MODE_TRUE
  AC_SUBST(MAINT)dnl
]
)