AC_CONFIG_HEADERS([config/config.h])
AC_CONFIG_MACRO_DIR([m4])
dnl This defines PACKAGE and VERSION.
-AM_INIT_AUTOMAKE([gnu 1.8 dist-bzip2])
+AM_INIT_AUTOMAKE([gnu 1.8 dist-bzip2 subdir-objects])
dnl libtool versioning
LT_VERSION_INFO="ginac_lt_current:ginac_lt_revision:ginac_lt_age"
dnl Switch to C++ language mode for the following libraries and headers.
AC_LANG([C++])
+AX_CXX_COMPILE_STDCXX_11
dnl Make sure all the necessary standard headers are installed on the system.
GINAC_STD_CXX_HEADERS