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
])