configure.ac

dnl Process this file with autoconf to produce a configure script.

dnl Copyright © 2009-2022 Dynare Team
dnl
dnl This file is part of Dynare.
dnl
dnl Dynare 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 3 of the License, or
dnl (at your option) any later version.
dnl
dnl Dynare 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 Dynare.  If not, see <https://www.gnu.org/licenses/>.

AC_PREREQ([2.62])
AC_INIT([dynare-preprocessor], [6-unstable])
AC_CONFIG_AUX_DIR([build-aux])
AC_CONFIG_SRCDIR([src/DynareMain.cc])
AM_INIT_AUTOMAKE([1.11 -Wall -Wno-portability foreign no-dist-gzip dist-xz tar-pax])

AC_PROG_CC
AC_PROG_CXX

AC_CANONICAL_HOST
case ${host_os} in
  *mingw32*)
    # On Windows, we don't want dynamic linking
    AM_LDFLAGS="-static"
    AC_SUBST([AM_LDFLAGS])
    ;;
  *cygwin*)
    AC_MSG_WARN([You are compiling for the Cygwin target. This means that the preprocessor will])
    AC_MSG_WARN([not run from MATLAB unless you add the Cygwin DLL to the path.])
    AC_MSG_WARN([This is probably not what you want. Consider using a MinGW cross-compiler.])
    ;;
esac

# Use C++ for testing headers
AC_LANG([C++])

AM_CXXFLAGS="-std=gnu++20 -Wall -Wno-dangling-else -Wextra -Wold-style-cast"
AC_SUBST([AM_CXXFLAGS])

# If default 'ar' is not available, try to find one with a host prefix (see ticket #145)
AC_CHECK_PROGS([AR], [ar ${host_alias}-ar])

AC_PROG_RANLIB
AM_PROG_AR

AM_PROG_LEX
# Hack to get lex include dir, ticket #575
AC_SUBST([LEXINC], [$(echo "$(dirname "$(which $LEX)")"/../include)])

AC_CHECK_PROG([YACC], [bison], [bison])
if test -z "$YACC"; then
  unset YACC # AM_MISSING_PROG needs an unset variable: an empty variable won't do
  AM_MISSING_PROG([YACC], [bison])
fi

# We need 1.36 because of unordered_{set,hash} used by Dynare++
AX_BOOST_BASE([1.36], [], [AC_MSG_ERROR([Can't find Boost >= 1.36])])

CPPFLAGS_SAVED="$CPPFLAGS"
CPPFLAGS="$CPPFLAGS $BOOST_CPPFLAGS"
AC_CHECK_HEADERS([boost/graph/adjacency_list.hpp], [], [AC_MSG_ERROR([Can't find Boost Graph Library])])