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-rw-r--r--m4/ax_prog_cc_for_build.m4140
-rw-r--r--m4/ax_prog_cxx_for_build.m4123
2 files changed, 263 insertions, 0 deletions
diff --git a/m4/ax_prog_cc_for_build.m4 b/m4/ax_prog_cc_for_build.m4
new file mode 100644
index 00000000000..08095a83dfc
--- /dev/null
+++ b/m4/ax_prog_cc_for_build.m4
@@ -0,0 +1,140 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_prog_cc_for_build.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_PROG_CC_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 CC_FOR_BUILD and CPP_FOR_BUILD macros to anything
+# needed to compile or link (CC_FOR_BUILD) and preprocess (CPP_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 CC).
+#
+# It also sets BUILD_EXEEXT and BUILD_OBJEXT to the executable and object
+# file extensions for the build platform, and GCC_FOR_BUILD to `yes' if
+# the compiler we found is GCC. All these variables but GCC_FOR_BUILD are
+# substituted in the Makefile.
+#
+# LICENSE
+#
+# Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org>
+#
+# 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 5
+
+AU_ALIAS([AC_PROG_CC_FOR_BUILD], [AX_PROG_CC_FOR_BUILD])
+AC_DEFUN([AX_PROG_CC_FOR_BUILD], [dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_CPP])dnl
+AC_REQUIRE([AC_EXEEXT])dnl
+AC_REQUIRE([AC_CANONICAL_SYSTEM])dnl
+dnl
+pushdef([AC_TRY_COMPILER], [
+cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+#include "confdefs.h"
+[$1]
+EOF
+# If we can't run a trivial program, we are probably using a cross
+compiler.
+# Fail miserably.
+if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} && (./conftest;
+exit) 2>/dev/null; then
+ [$2]=yes
+else
+ echo "configure: failed program was:" >&AC_FD_CC
+ cat conftest.$ac_ext >&AC_FD_CC
+ [$2]=no
+fi
+[$3]=no
+rm -fr conftest*])dnl
+
+dnl Use the standard macros, but make them use other variable names
+dnl
+pushdef([cross_compiling], [#])dnl
+pushdef([ac_cv_prog_CPP], ac_cv_build_prog_CPP)dnl
+pushdef([ac_cv_prog_gcc], ac_cv_build_prog_gcc)dnl
+pushdef([ac_cv_prog_cc_works], ac_cv_build_prog_cc_works)dnl
+pushdef([ac_cv_prog_cc_cross], ac_cv_build_prog_cc_cross)dnl
+pushdef([ac_cv_prog_cc_g], ac_cv_build_prog_cc_g)dnl
+pushdef([ac_cv_exeext], ac_cv_build_exeext)dnl
+pushdef([ac_cv_objext], ac_cv_build_objext)dnl
+pushdef([ac_exeext], ac_build_exeext)dnl
+pushdef([ac_objext], ac_build_objext)dnl
+pushdef([CC], CC_FOR_BUILD)dnl
+pushdef([CPP], CPP_FOR_BUILD)dnl
+pushdef([CFLAGS], CFLAGS_FOR_BUILD)dnl
+pushdef([CPPFLAGS], CPPFLAGS_FOR_BUILD)dnl
+pushdef([LDFLAGS], LDFLAGS_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_cpp], ac_build_cpp)dnl
+pushdef([ac_compile], ac_build_compile)dnl
+pushdef([ac_link], ac_build_link)dnl
+pushdef([ac_tool_prefix], [#])dnl
+
+AC_PROG_CC
+AC_PROG_CPP
+AC_EXEEXT
+
+dnl Restore the old definitions
+dnl
+popdef([AC_TRY_COMPILER])dnl
+popdef([ac_tool_prefix])dnl
+popdef([ac_link])dnl
+popdef([ac_compile])dnl
+popdef([ac_cpp])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([CPPFLAGS])dnl
+popdef([CFLAGS])dnl
+popdef([CPP])dnl
+popdef([CC])dnl
+popdef([ac_objext])dnl
+popdef([ac_exeext])dnl
+popdef([ac_cv_objext])dnl
+popdef([ac_cv_exeext])dnl
+popdef([ac_cv_prog_cc_g])dnl
+popdef([ac_cv_prog_cc_works])dnl
+popdef([ac_cv_prog_cc_cross])dnl
+popdef([ac_cv_prog_gcc])dnl
+popdef([cross_compiling])dnl
+
+dnl Finally, set Makefile variables
+dnl
+BUILD_EXEEXT=$ac_build_exeext
+BUILD_OBJEXT=$ac_build_objext
+AC_SUBST(BUILD_EXEEXT)dnl
+AC_SUBST(BUILD_OBJEXT)dnl
+AC_SUBST([CFLAGS_FOR_BUILD])dnl
+AC_SUBST([CPPFLAGS_FOR_BUILD])dnl
+AC_SUBST([LDFLAGS_FOR_BUILD])dnl
+])
diff --git a/m4/ax_prog_cxx_for_build.m4 b/m4/ax_prog_cxx_for_build.m4
new file mode 100644
index 00000000000..4a099f9fbd8
--- /dev/null
+++ b/m4/ax_prog_cxx_for_build.m4
@@ -0,0 +1,123 @@
+# ===========================================================================
+# http://www.gnu.org/software/autoconf-archive/ax_prog_cxx_for_build.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_PROG_CXX_FOR_BUILD
+#
+# DESCRIPTION
+#
+# This macro searches for a C++ compiler that generates native executables,
+# that is a C++ compiler that surely is not a cross-compiler. This can be
+# useful if you have to generate source code at compile-time like for
+# example GCC does.
+#
+# The macro sets the CXX_FOR_BUILD and CXXCPP_FOR_BUILD macros to anything
+# needed to compile or link (CXX_FOR_BUILD) and preprocess (CXXCPP_FOR_BUILD).
+# The value of these variables can be overridden by the user by specifying
+# a compiler with an environment variable (like you do for standard CXX).
+#
+# LICENSE
+#
+# Copyright (c) 2008 Paolo Bonzini <bonzini@gnu.org>
+# Copyright (c) 2012 Avionic Design GmbH
+#
+# Based on the AX_PROG_CC_FOR_BUILD macro by Paolo Bonzini.
+#
+# Copying and distribution of this file, with or without modification, are
+# permitted in any medium without royalty provided the copyright notice
+# and this notice are preserved. This file is offered as-is, without any
+# warranty.
+
+#serial 5
+
+AU_ALIAS([AC_PROG_CXX_FOR_BUILD], [AX_PROG_CXX_FOR_BUILD])
+AC_DEFUN([AX_PROG_CXX_FOR_BUILD], [dnl
+AC_REQUIRE([AX_PROG_CC_FOR_BUILD])dnl
+AC_REQUIRE([AC_PROG_CXX])dnl
+AC_REQUIRE([AC_PROG_CXXCPP])dnl
+AC_REQUIRE([AC_CANONICAL_SYSTEM])dnl
+dnl
+pushdef([AC_TRY_COMPILER], [
+cat > conftest.$ac_ext << EOF
+#line __oline__ "configure"
+#include "confdefs.h"
+[$1]
+EOF
+# If we can't run a trivial program, we are probably using a cross
+compiler.
+# Fail miserably.
+if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} && (./conftest;
+exit) 2>/dev/null; then
+ [$2]=yes
+else
+ echo "configure: failed program was:" >&AC_FD_CC
+ cat conftest.$ac_ext >&AC_FD_CC
+ [$2]=no
+fi
+[$3]=no
+rm -fr conftest*])dnl
+
+dnl Use the standard macros, but make them use other variable names
+dnl
+pushdef([cross_compiling], [#])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([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
+pushdef([ac_tool_prefix], [#])dnl
+
+AC_PROG_CXX
+AC_PROG_CXXCPP
+
+dnl Restore the old definitions
+dnl
+popdef([AC_TRY_COMPILER])dnl
+popdef([ac_tool_prefix])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([CXXFLAGS])dnl
+popdef([CXXCPP])dnl
+popdef([CXX])dnl
+popdef([ac_cv_prog_cxx_g])dnl
+popdef([ac_cv_prog_cxx_works])dnl
+popdef([ac_cv_prog_cxx_cross])dnl
+popdef([ac_cv_prog_gxx])dnl
+popdef([cross_compiling])dnl
+
+dnl Finally, set Makefile variables
+dnl
+AC_SUBST([CXXFLAGS_FOR_BUILD])dnl
+AC_SUBST([CXXCPPFLAGS_FOR_BUILD])dnl
+])