| # =========================================================================== |
| # http://www.gnu.org/software/autoconf-archive/ax_prog_cxx_for_build.html |
| # =========================================================================== |
| # |
| # SYNOPSIS |
| # |
| # AX_PROG_CXX_FOR_BUILD |
| # |
| # DESCRIPTION |
| # |
| # This macro searches for a C++ compiler that generates native |
| # executables, that is a C++ compiler that surely is not a cross-compiler. |
| # This can be useful if you have to generate source code at compile-time |
| # like for example GCC does. |
| # |
| # The macro sets the CXX_FOR_BUILD and CXXCPP_FOR_BUILD macros to anything |
| # needed to compile or link (CXX_FOR_BUILD) and preprocess |
| # (CXXCPP_FOR_BUILD). The value of these variables can be overridden by |
| # the user by specifying a compiler with an environment variable (like you |
| # do for standard CXX). |
| # |
| # LICENSE |
| # |
| # Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org> |
| # Copyright (c) 2012 Avionic Design GmbH |
| # |
| # Based on the AX_PROG_CC_FOR_BUILD macro by Paolo Bonzini. |
| # |
| # Copying and distribution of this file, with or without modification, are |
| # permitted in any medium without royalty provided the copyright notice |
| # and this notice are preserved. This file is offered as-is, without any |
| # warranty. |
| |
| #serial 2 |
| |
| AU_ALIAS([AC_PROG_CXX_FOR_BUILD], [AX_PROG_CXX_FOR_BUILD]) |
| AC_DEFUN([AX_PROG_CXX_FOR_BUILD], [dnl |
| AC_REQUIRE([AX_PROG_CC_FOR_BUILD])dnl |
| AC_REQUIRE([AC_PROG_CXX])dnl |
| AC_REQUIRE([AC_PROG_CXXCPP])dnl |
| AC_REQUIRE([AC_CANONICAL_HOST])dnl |
| |
| dnl Use the standard macros, but make them use other variable names |
| dnl |
| pushdef([ac_cv_prog_CXXCPP], ac_cv_build_prog_CXXCPP)dnl |
| pushdef([ac_cv_prog_gxx], ac_cv_build_prog_gxx)dnl |
| pushdef([ac_cv_prog_cxx_works], ac_cv_build_prog_cxx_works)dnl |
| pushdef([ac_cv_prog_cxx_cross], ac_cv_build_prog_cxx_cross)dnl |
| pushdef([ac_cv_prog_cxx_g], ac_cv_build_prog_cxx_g)dnl |
| pushdef([CXX], CXX_FOR_BUILD)dnl |
| pushdef([CXXCPP], CXXCPP_FOR_BUILD)dnl |
| pushdef([CXXFLAGS], CXXFLAGS_FOR_BUILD)dnl |
| pushdef([CPPFLAGS], CPPFLAGS_FOR_BUILD)dnl |
| pushdef([CXXCPPFLAGS], CXXCPPFLAGS_FOR_BUILD)dnl |
| pushdef([host], build)dnl |
| pushdef([host_alias], build_alias)dnl |
| pushdef([host_cpu], build_cpu)dnl |
| pushdef([host_vendor], build_vendor)dnl |
| pushdef([host_os], build_os)dnl |
| pushdef([ac_cv_host], ac_cv_build)dnl |
| pushdef([ac_cv_host_alias], ac_cv_build_alias)dnl |
| pushdef([ac_cv_host_cpu], ac_cv_build_cpu)dnl |
| pushdef([ac_cv_host_vendor], ac_cv_build_vendor)dnl |
| pushdef([ac_cv_host_os], ac_cv_build_os)dnl |
| pushdef([ac_cxxcpp], ac_build_cxxcpp)dnl |
| pushdef([ac_compile], ac_build_compile)dnl |
| pushdef([ac_link], ac_build_link)dnl |
| |
| save_cross_compiling=$cross_compiling |
| save_ac_tool_prefix=$ac_tool_prefix |
| cross_compiling=no |
| ac_tool_prefix= |
| |
| AC_PROG_CXX |
| AC_PROG_CXXCPP |
| |
| ac_tool_prefix=$save_ac_tool_prefix |
| cross_compiling=$save_cross_compiling |
| |
| dnl Restore the old definitions |
| dnl |
| popdef([ac_link])dnl |
| popdef([ac_compile])dnl |
| popdef([ac_cxxcpp])dnl |
| popdef([ac_cv_host_os])dnl |
| popdef([ac_cv_host_vendor])dnl |
| popdef([ac_cv_host_cpu])dnl |
| popdef([ac_cv_host_alias])dnl |
| popdef([ac_cv_host])dnl |
| popdef([host_os])dnl |
| popdef([host_vendor])dnl |
| popdef([host_cpu])dnl |
| popdef([host_alias])dnl |
| popdef([host])dnl |
| popdef([CXXCPPFLAGS])dnl |
| popdef([CPPFLAGS])dnl |
| popdef([CXXFLAGS])dnl |
| popdef([CXXCPP])dnl |
| popdef([CXX])dnl |
| popdef([ac_cv_prog_cxx_g])dnl |
| popdef([ac_cv_prog_cxx_cross])dnl |
| popdef([ac_cv_prog_cxx_works])dnl |
| popdef([ac_cv_prog_gxx])dnl |
| popdef([ac_cv_prog_CXXCPP])dnl |
| |
| dnl Finally, set Makefile variables |
| dnl |
| AC_SUBST([CXXFLAGS_FOR_BUILD])dnl |
| AC_SUBST([CXXCPPFLAGS_FOR_BUILD])dnl |
| ]) |
