| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110 |
- # ===========================================================================
- # 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
- ])
|
