dnl Copyright (C) 1998 Eleftherios Gkioulekas <lf@amath.washington.edu>
dnl  
dnl This program is free software; you can redistribute it and/or modify
dnl it 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 program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
dnl GNU General Public License for more details.
dnl 
dnl You should have received a copy of the GNU General Public License
dnl along with this program; if not, write to the Free Software 
dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
dnl 
dnl As a special exception to the GNU General Public License, if you distribute
dnl this file as part of a program that contains a configuration script 
dnl generated by Autoconf, you may include it under the same distribution 
dnl terms that you use for the rest of that program.

AC_DEFUN(LF_PROG_TXTC,[
  AC_MSG_CHECKING(for the txtc compiler)
  TXTC='$(SHELL) $(top_builddir)/txtc.sh'
  if test -f $srcdir/txtc.sh.in
  then
    AC_MSG_RESULT(yes)  
  else
    AC_MSG_RESULT(no)
    AC_MSG_WARN([Cannot find the txtc.sh compiler.])
    AC_MSG_WARN([Please use the mktxtc utility to generate one at the]), 
    AC_MSG_WARN([toplevel directory, otherwise this package will not compile.])
  fi
  AC_SUBST(TXTC)
])

dnl @synopsis AC_COMPILE_WARNINGS
dnl
dnl Set the maximum warning verbosity according to compiler used.
dnl Currently supports g++ and gcc.
dnl This macro must be put after AC_PROG_CC and AC_PROG_CXX in
dnl configure.in
dnl
dnl @version $Id: acinclude.m4,v 1.2 2001/02/09 18:17:14 bettini Exp $
dnl @author Loic Dachary <loic@senga.org>
dnl
AC_DEFUN(AC_COMPILE_WARNINGS,
[AC_MSG_CHECKING(maximum warning verbosity option)
if test -n "$CXX"
then
  if test "$GXX" = "yes"
  then
    ac_compile_warnings_opt='-Wall'
  fi
  CXXFLAGS="$CXXFLAGS $ac_compile_warnings_opt"
  ac_compile_warnings_msg="$ac_compile_warnings_opt for C++"
fi

if test -n "$CC"
then
  if test "$GCC" = "yes"
  then
    ac_compile_warnings_opt='-Wall'
  fi
  CFLAGS="$CFLAGS $ac_compile_warnings_opt"
  ac_compile_warnings_msg="$ac_compile_warnings_msg $ac_compile_warnings_opt for C"
fi
AC_MSG_RESULT($ac_compile_warnings_msg)
unset ac_compile_warnings_msg
unset ac_compile_warnings_opt
])

dnl Copyright (C) 2001 Lorenzo Bettini <bettini@gnu.org>
dnl  
dnl This program is free software; you can redistribute it and/or modify
dnl it 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 @synopsis AC_NONGNU_FLAGS
dnl
dnl check if the non-GNU C compiler accepts -Aa (HP-UX)

AC_DEFUN(AC_NONGNU_FLAGS,
[
  if test -z "$GCC"; then
    AC_CC_AA_FLAG
    if test $ac_cv_cc_aa_flag = yes; then
      CFLAGS="$CFLAGS -Aa"
    fi
  fi
])

dnl @synopsis AC_CC_AA_FLAG
dnl
dnl check if the C compiler accepts -Aa (HP-UX)

AC_DEFUN(AC_CC_AA_FLAG,
[AC_CACHE_CHECK(whether ${CC-cc} accepts -Aa, ac_cv_cc_aa_flag,
[echo 'void f(){}' > conftest.c
if test -z "`${CC-cc} -Aa -c conftest.c 2>&1`"; then
  ac_cv_cc_aa_flag=yes
else
  ac_cv_cc_aa_flag=no
fi
rm -f conftest*
])])