guile-config/guile.m4

   1 dnl   Automake macros for working with Guile.
   2 dnl
   3 dnl     Copyright (C) 1998 Free Software Foundation, Inc.
   4 dnl
   5 dnl   This program is free software; you can redistribute it and/or modify
   6 dnl   it under the terms of the GNU General Public License as published by
   7 dnl   the Free Software Foundation; either version 2, or (at your option)
   8 dnl   any later version.
   9 dnl
  10 dnl   This program is distributed in the hope that it will be useful,
  11 dnl   but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 dnl   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 dnl   GNU General Public License for more details.
  14 dnl
  15 dnl   You should have received a copy of the GNU General Public License
  16 dnl   along with this software; see the file COPYING.  If not, write to
  17 dnl   the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18 dnl   Boston, MA 02111-1307 USA
  19 dnl
  20 dnl   As a special exception, the Free Software Foundation gives permission
  21 dnl   for additional uses of the text contained in its release of GUILE.
  22 dnl
  23 dnl   The exception is that, if you link the GUILE library with other files
  24 dnl   to produce an executable, this does not by itself cause the
  25 dnl   resulting executable to be covered by the GNU General Public License.
  26 dnl   Your use of that executable is in no way restricted on account of
  27 dnl   linking the GUILE library code into it.
  28 dnl
  29 dnl   This exception does not however invalidate any other reasons why
  30 dnl   the executable file might be covered by the GNU General Public License.
  31 dnl
  32 dnl   This exception applies only to the code released by the
  33 dnl   Free Software Foundation under the name GUILE.  If you copy
  34 dnl   code from other Free Software Foundation releases into a copy of
  35 dnl   GUILE, as the General Public License permits, the exception does
  36 dnl   not apply to the code that you add in this way.  To avoid misleading
  37 dnl   anyone as to the status of such modified files, you must delete
  38 dnl   this exception notice from them.
  39 dnl
  40 dnl   If you write modifications of your own for GUILE, it is your choice
  41 dnl   whether to permit this exception to apply to your modifications.
  42 dnl   If you do not wish that, delete this exception notice.
  43
  44
  45 dnl   GUILE_FLAGS --- set flags for compiling and linking with Guile
  46 dnl
  47 dnl   This macro runs the `guile-config' script, installed with Guile,
  48 dnl   to find out where Guile's header files and libraries are
  49 dnl   installed.  It sets two variables, marked for substitution, as
  50 dnl   by AC_SUBST.
  51 dnl
  52 dnl     GUILE_CFLAGS --- flags to pass to a C or C++ compiler to build
  53 dnl             code that uses Guile header files.  This is almost
  54 dnl             always just a -I flag.
  55 dnl
  56 dnl     GUILE_LDFLAGS --- flags to pass to the linker to link a
  57 dnl             program against Guile.  This includes `-lguile' for
  58 dnl             the Guile library itself, any libraries that Guile
  59 dnl             itself requires (like -lqthreads), and so on.  It may
  60 dnl             also include a -L flag to tell the compiler where to
  61 dnl             find the libraries.
  62
  63 AC_DEFUN([GUILE_FLAGS],[
  64 ## The GUILE_FLAGS macro.
  65   ## First, let's just see if we can find Guile at all.
  66   AC_MSG_CHECKING(for Guile)
  67   guile-config link > /dev/null || {
  68     echo "configure: cannot find guile-config; is Guile installed?" 1>&2
  69     exit 1
  70   }
  71   GUILE_CFLAGS="`guile-config compile`"
  72   GUILE_LDFLAGS="`guile-config link`"
  73   AC_SUBST(GUILE_CFLAGS)
  74   AC_SUBST(GUILE_LDFLAGS)
  75   AC_MSG_RESULT(yes)
  76 ])