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., 51 Franklin Street, Fifth Floor, Boston,
 dnl   MA 02110-1301, USA.
 
 AC_PREREQ([2.59])
 AC_INIT([libclamavc++],[devel],[http://bugs.clamav.net])
 AC_CONFIG_AUX_DIR([config])
 AC_CONFIG_SRCDIR([llvm/configure])
 AC_CONFIG_MACRO_DIR([m4])
 AC_CONFIG_HEADER([clamavcxx-config.h])
 AC_CANONICAL_TARGET
 AM_INIT_AUTOMAKE([-Wall -Wportability -Werror foreign no-define])
 AM_SILENT_RULES([yes])
 
 AC_PROG_CXX
 LT_INIT
 if test "$GXX" != "yes"; then
     AC_MSG_ERROR([GNU C++ compiler not found, not building LLVM])
 fi
 
 AC_CHECK_GNU_MAKE
 if test -z "$llvm_cv_gnu_make_command"; then
     AC_MSG_ERROR([GNU make not found])
 fi
 GMAKE="$llvm_cv_gnu_make_command"
 AC_SUBST([GMAKE])
 AC_CONFIG_SUBDIRS([llvm])
 AC_ARG_ENABLE([llvm],AC_HELP_STRING([-enable-llvm],
 				    [Enable 'llvm' JIT/verifier support @<:@default=auto@:>@]),
 				    [enable_llvm=$enableval], [enable_llvm="auto"])
 
 AC_ARG_ENABLE(optimized, AC_HELP_STRING([-enable-optimized],
 	      [Compile with optimizations enabled (default is YES)]),
 	      enable_optimized=$enableval, enable_optimized=default)
 AM_CONDITIONAL(DEBUG_BUILD,[test "x$enable_optimized" == "xno"])
 
 dnl Set configure args for subdir
 if test "$enable_optimized" = "default"; then
     ac_configure_args="$ac_configure_args --enable-optimized"
 fi
 ac_configure_args="$ac_configure_args --enable-targets=host-only --enable-bindings=none --enable-libffi=no --without-llvmgcc --without-llvmgxx"
 
 if test "$enable_llvm" = "auto"; then
     dnl Do some sanity checks, and don't automatically build on platforms
     dnl that are not supported or have broken compilers.
     dnl The user can override this by specifying --enable-llvm=yes.
     gxx_version=`${CXX} -dumpversion` ||
     AC_MSG_ERROR([Unable to get GNU C++ compiler version])
     case "${gxx_version}" in
      [012].*|3.[0123].*)
 	AC_MSG_ERROR([C++ compiler too old (${gxx_version})])
         ;;
      3.4.[012]*|4.0.1*|4.1.[12]*)
         AC_MSG_ERROR([C++ compiler is buggy])
         ;;
     esac
 
     case "$target_cpu" in
 	i?86|amd64|x86_64|powerpc*)
 	    case "$target_os" in
 		darwin*|freebsd*|openbsd*|netbsd*|dragonfly*|linux*|solaris*|win32*|mingw*)
 		    ;;
 		*)
                     AC_MSG_ERROR([OS is not supported, not building LLVM])
                     ;;
 	    esac
 	    ;;
 	alpha*|arm*)
 	    AC_MSG_ERROR([CPU support is untested, not building LLVM])
 	    ;;
 	*)
 	    AC_MSG_ERROR([Unsupported CPU for JIT: $target_cpu, not building LLVM])
 	    ;;
     esac
 fi
 
 AC_OUTPUT([
     Makefile
 ])