aclocal.m4

模糊聚類分析源碼。包含教學文件

  LIBS="$FH_SAVE_LIBS"
  FH_SAVE_LIBS=""

  AC_LANG_RESTORE
])

dnl ########################### -*- Mode: M4 -*- #######################
dnl Copyright (C) 98, 1999 Matthew D. Langston <[e-mail]>
dnl
dnl This file is free software; you can redistribute it and/or modify it
dnl under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This file is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
dnl General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this file; if not, write to:
dnl
dnl   Free Software Foundation, Inc.
dnl   Suite 330
dnl   59 Temple Place
dnl   Boston, MA 02111-1307, USA.
dnl ####################################################################


dnl NOTE: The AC_HELP_STRING macro has been accepted for inclusion in
dnl       Autoconf 2.15, but this version of Autoconf hasn't been
dnl       released yet as of the time that I write this.  Therefore, I
dnl       am including it here for the time being


dnl AC_HELP_STRING
dnl --------------
dnl
dnl usage: AC_HELP_STRING(LHS, RHS, HELP-STRING)
dnl
dnl Format an Autoconf macro's help string so that it looks pretty when
dnl the user executes "configure --help".  This macro take three
dnl arguments, a "left hand side" (LHS), a "right hand side" (RHS), and
dnl a variable (HELP-STRING) to set to the pretty-printed concatenation
dnl of LHS and RHS (the new, pretty-printed "help string").
dnl
dnl The resulting string in HELP-STRING is suitable for use in other
dnl macros that require a help string (e.g. AC_ARG_WITH).
dnl 
dnl AC_DEFUN(AC_HELP_STRING,
pushdef([AC_HELP_STRING],
[
dnl 
dnl Here is the sample string from the Autoconf manual (Node: External
dnl Software) which shows the proper spacing for help strings.
dnl 
dnl    --with-readline         support fancy command line editing
dnl  ^ ^                       ^ 
dnl  | |                       |
dnl  | column 2                column 26     
dnl  |
dnl  column 0
dnl 
dnl A help string is made up of a "left hand side" (LHS) and a "right
dnl hand side" (RHS).  In the example above, the LHS is
dnl "--with-readline", while the RHS is "support fancy command line
dnl editing".
dnl 
dnl If the LHS extends past column 24, then the LHS is terminated with a
dnl newline so that the RHS is on a line of its own beginning in column
dnl 26.
dnl 
dnl Therefore, if the LHS were instead "--with-readline-blah-blah-blah",
dnl then the AC_HELP_STRING macro would expand into:
dnl
dnl
dnl    --with-readline-blah-blah-blah
dnl  ^ ^                       support fancy command line editing
dnl  | |                       ^ 
dnl  | column 2                |
dnl  column 0                  column 26     

dnl We divert everything to AC_DIVERSION_NOTICE (which gets output very
dnl early in the configure script) because we want the user's help
dnl string to be set before it is used.

AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)dnl
# This is from AC_HELP_STRING
lhs="$1"
rhs="$2"

lhs_column=25
rhs_column=`expr $lhs_column + 1`

# Insure that the LHS begins with exactly two spaces.
changequote(, )dnl
lhs=`echo "$lhs" | sed -n -e "s/[ ]*\(.*\)/  \1/p"`
changequote([, ])dnl

# Is the length of the LHS less than $lhs_column?
if ! `echo "$lhs" | grep ".\{$lhs_column\}" > /dev/null 2>&1`; then

  # Pad the LHS with spaces.  Note that padding the LHS is an
  # "expensive" operation (i.e. expensive in the sense of there being
  # multiple calls to `grep') only the first time AC_HELP_STRING is
  # called.  Once this macro is called once, subsequent calls will be
  # nice and zippy.
  : ${lhs_pad=""}
changequote(, )dnl
  while ! `echo "$lhs_pad" | grep "[ ]\{$lhs_column\}" > /dev/null 2>&1`; do
changequote([, ])dnl
    lhs_pad=" $lhs_pad"
  done

  lhs="${lhs}${lhs_pad}"
changequote(, )dnl
$3=`echo "$lhs" | sed -n -e "/.\{$lhs_column\}[ ][ ]*$/ s/\(.\{$rhs_column\}\).*/\1$rhs/p"`
changequote([, ])dnl

else

  # Build up a string of spaces to pad the left-hand-side of the RHS
  # with.  Note that padding the RHS is an "expensive" operation
  # (i.e. expensive in the sense of there being multiple calls to
  # `grep') only the first time AC_HELP_STRING is called.  Once this
  # macro is called once, subsequent calls will be nice and zippy.
  : ${rhs_pad=""}
changequote(, )dnl
  while ! `echo "$rhs_pad" | grep "[ ]\{$rhs_column\}" > /dev/null 2>&1`; do
changequote([, ])dnl
    rhs_pad=" $rhs_pad"
  done

  # Strip all leading spaces from the RHS.
changequote(, )dnl
  rhs=`echo "$rhs" | sed -n -e "s/[ ]*\(.*\)/\1/p"`
changequote([, ])dnl

$3="$lhs
${rhs_pad}${rhs}"
fi 
AC_DIVERT_POP()dnl
])

dnl ########################### -*- Mode: M4 -*- #######################
dnl Copyright (C) 98, 1999 Matthew D. Langston <[e-mail]>
dnl
dnl This file is free software; you can redistribute it and/or modify it
dnl under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 2 of the License, or
dnl (at your option) any later version.
dnl
dnl This file is distributed in the hope that it will be useful, but
dnl WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
dnl General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this file; if not, write to:
dnl
dnl   Free Software Foundation, Inc.
dnl   Suite 330
dnl   59 Temple Place
dnl   Boston, MA 02111-1307, USA.
dnl ####################################################################


dnl @synopsis MDL_HAVE_OPENGL
dnl 
dnl Search for OpenGL.  We search first for Mesa (a GPL'ed version of
dnl Mesa) before a vendor's version of OpenGL, unless we were
dnl specifically asked not to with `--with-Mesa=no' or `--without-Mesa'.
dnl
dnl The four "standard" OpenGL libraries are searched for: "-lGL",
dnl "-lGLU", "-lGLX" (or "-lMesaGL", "-lMesaGLU" as the case may be) and
dnl "-lglut".
dnl
dnl All of the libraries that are found (since "-lglut" or "-lGLX" might
dnl be missing) are added to the shell output variable "GL_LIBS", along
dnl with any other libraries that are necessary to successfully link an
dnl OpenGL application (e.g. the X11 libraries).  Care has been taken to
dnl make sure that all of the libraries in "GL_LIBS" are listed in the
dnl proper order.
dnl
dnl Additionally, the shell output variable "GL_CFLAGS" is set to any
dnl flags (e.g. "-I" flags) that are necessary to successfully compile
dnl an OpenGL application.
dnl
dnl The following shell variable (which are not output variables) are
dnl also set to either "yes" or "no" (depending on which libraries were
dnl found) to help you determine exactly what was found.
dnl
dnl   have_GL
dnl   have_GLU
dnl   have_GLX
dnl   have_glut
dnl
dnl A complete little toy "Automake `make distcheck'" package of how to
dnl use this macro is available at:
dnl
dnl   ftp://ftp.slac.stanford.edu/users/langston/autoconf/ac_opengl-0.01.tar.gz
dnl
dnl Please note that as the ac_opengl macro and the toy example evolves,
dnl the version number increases, so you may have to adjust the above
dnl URL accordingly.
dnl
dnl @version 0.01 $Id$
dnl @author Matthew D. Langston <[e-mail]>

AC_DEFUN(MDL_HAVE_OPENGL,
[
  AC_REQUIRE([AC_PROG_CC])
  AC_REQUIRE([AC_PATH_X])
  AC_REQUIRE([AC_PATH_XTRA])

  AC_CACHE_CHECK([for OpenGL], mdl_cv_have_OpenGL,
  [
dnl Check for Mesa first, unless we were asked not to.
    AC_HELP_STRING([--with-Mesa],
                   [Prefer the Mesa library over a vendors native OpenGL library (default=yes)],
                   with_Mesa_help_string)
    AC_ARG_ENABLE(Mesa, $with_Mesa_help_string, use_Mesa=$enableval, use_Mesa=yes)

    if test x"$use_Mesa" = xyes; then
       GL_search_list="MesaGL   GL"
      GLU_search_list="MesaGLU GLU"
      GLX_search_list="MesaGLX GLX"
    else
       GL_search_list="GL  MesaGL"
      GLU_search_list="GLU MesaGLU"
      GLX_search_list="GLX MesaGLX"
    fi      

    AC_LANG_SAVE
    AC_LANG_C

dnl If we are running under X11 then add in the appropriate libraries.
if ! test x"$no_x" = xyes; then
dnl Add everything we need to compile and link X programs to GL_X_CFLAGS
dnl and GL_X_LIBS.
  GL_CFLAGS="$X_CFLAGS"
  GL_X_LIBS="$X_PRE_LIBS $X_LIBS -lX11 -lXext -lXmu -lXt -lXi $X_EXTRA_LIBS"
fi
    GL_save_CPPFLAGS="$CPPFLAGS"
    CPPFLAGS="$GL_CFLAGS"

    GL_save_LIBS="$LIBS"
    LIBS="$GL_X_LIBS"


    # Save the "AC_MSG_RESULT file descriptor" to FD 8.
    exec 8>&AC_FD_MSG

    # Temporarily turn off AC_MSG_RESULT so that the user gets pretty
    # messages.
    exec AC_FD_MSG>/dev/null

    AC_SEARCH_LIBS(glAccum,          $GL_search_list, have_GL=yes,   have_GL=no)
    AC_SEARCH_LIBS(gluBeginCurve,   $GLU_search_list, have_GLU=yes,  have_GLU=no)
    AC_SEARCH_LIBS(glXChooseVisual, $GLX_search_list, have_GLX=yes,  have_GLX=no)
    AC_SEARCH_LIBS(glutInit,        glut,             have_glut=yes, have_glut=no)



    # Restore pretty messages.
    exec AC_FD_MSG>&8

    if test -n "$LIBS"; then
      mdl_cv_have_OpenGL=yes
      GL_LIBS="$LIBS"
      AC_SUBST(GL_CFLAGS)
      AC_SUBST(GL_LIBS)
    else
      mdl_cv_have_OpenGL=no
      GL_CFLAGS=
    fi

dnl Reset GL_X_LIBS regardless, since it was just a temporary variable
dnl and we don't want to be global namespace polluters.
    GL_X_LIBS=

    LIBS="$GL_save_LIBS"
    CPPFLAGS="$GL_save_CPPFLAGS"

    AC_LANG_RESTORE
  ])
])