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# ===========================================================================
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# https://github.com/BrianAker/ddm4/
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# ===========================================================================
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# AX_COMPILER_VERSION()
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# Capture version of C/C++ compiler
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# Copyright (C) 2012 Brian Aker
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# All rights reserved.
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following disclaimer
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# in the documentation and/or other materials provided with the
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# * The names of its contributors may not be used to endorse or
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# promote products derived from this software without specific prior
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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AC_DEFUN([_C_COMPILER_VERSION],
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[AC_MSG_CHECKING([C Compiler version])
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AS_CASE(["$ax_cv_c_compiler_vendor"],
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[sun],[ax_c_compiler_version=`$CC -V 2>&1 | sed 1q`],
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[intel],[ax_c_compiler_version=`$CC --version 2>&1 | sed 1q`],
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[clang],[ax_c_compiler_version=`$CC --version 2>&1 | sed 1q`],
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[gnu],[ax_c_compiler_version=`$CC --version | sed 1q`],
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[mingw],[ax_c_compiler_version=`$CC --version | sed 1q`],
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[ax_c_compiler_version="unknown: $ax_cv_c_compiler_vendor"])
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AC_MSG_RESULT(["$ax_c_compiler_version"])
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AC_SUBST([CC_VERSION_VENDOR],["$ax_cv_c_compiler_vendor"])
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AC_SUBST([CC_VERSION],["$ax_c_compiler_version"])
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AC_DEFUN([_CXX_COMPILER_VERSION],
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[AC_MSG_CHECKING([C++ Compiler version])
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AS_CASE(["$ax_cv_c_compiler_vendor"],
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[sun],[ax_cxx_compiler_version=`$CXX -V 2>&1 | sed 1q`],
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[intel],[ax_cxx_compiler_version=`$CXX --version 2>&1 | sed 1q`],
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[clang],[ax_cxx_compiler_version=`$CXX --version 2>&1 | sed 1q`],
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[gnu],[ax_cxx_compiler_version=`$CXX --version | sed 1q`],
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[mingw],[ax_cxx_compiler_version=`$CXX --version | sed 1q`],
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[ax_cxx_compiler_version="unknown: $ax_cv_c_compiler_vendor"])
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AC_MSG_RESULT(["$ax_cxx_compiler_version"])
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AC_SUBST([CXX_VERSION_VENDOR],["$ax_cv_c_compiler_vendor"])
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AC_SUBST([CXX_VERSION],["$ax_cxx_compiler_version"])
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AC_DEFUN([AX_COMPILER_VERSION],
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[AC_REQUIRE([AX_COMPILER_VENDOR])
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AC_MSG_CHECKING([MINGW])
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AC_CHECK_DECL([__MINGW32__],
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ax_c_compiler_version_vendor=mingw],
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AC_MSG_RESULT([$MINGW])
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AC_REQUIRE([_C_COMPILER_VERSION])
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AC_REQUIRE([_CXX_COMPILER_VERSION])
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AS_IF([test "x$GCC" = xyes],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#if !defined(__GNUC__) || (__GNUC__ < 4) || ((__GNUC__ >= 4) && (__GNUC_MINOR__ < 7))
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# error GCC is Too Old!
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[ac_c_gcc_recent=yes],
added
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m4/ax_compiler_version.m4
