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