文件操作 - ax_cxx_gcc_abi_demangle.m4
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文件: /usr/local/src/libmemcached-1.0.18/m4/ax_cxx_gcc_abi_demangle.m4
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# =========================================================================== # http://www.gnu.org/software/autoconf-archive/ax_cxx_gcc_abi_demangle.html # =========================================================================== # # SYNOPSIS # # AX_CXX_GCC_ABI_DEMANGLE # # DESCRIPTION # # If the compiler supports GCC C++ ABI name demangling (has header # cxxabi.h and abi::__cxa_demangle() function), define # HAVE_GCC_ABI_DEMANGLE # # Adapted from AX_CXX_RTTI by Luc Maisonobe # # LICENSE # # Copyright (c) 2012 Brian Aker <brian@tangent.org> # Copyright (c) 2008 Neil Ferguson <nferguso@eso.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 10 AC_DEFUN([AX_CXX_GCC_ABI_DEMANGLE], [AC_PREREQ([2.63])dnl AC_CACHE_CHECK([whether the compiler supports GCC C++ ABI name demangling], [ax_cv_cxx_gcc_abi_demangle], [AC_LANG_PUSH([C++]) AC_RUN_IFELSE([AC_LANG_PROGRAM([[#include <typeinfo> #include <cxxabi.h> #include <cstdlib> #include <string> template<typename TYPE> class A {};]], [[A<int> instance; #if defined(_WIN32) return EXIT_FAILURE; #endif int status = 0; char* c_name = abi::__cxa_demangle(typeid(instance).name(), 0, 0, &status); std::string name(c_name); ::free(c_name); if (name.compare("A<int>") != 0) { return EXIT_FAILURE; }]])], [ax_cv_cxx_gcc_abi_demangle=yes], [ax_cv_cxx_gcc_abi_demangle=no], [ax_cv_cxx_gcc_abi_demangle=no]) AC_LANG_POP]) AC_MSG_CHECKING([checking for cxx_gcc_abi_demangle]) AC_MSG_RESULT(["$ax_cv_cxx_gcc_abi_demangle"]) AS_IF([test "x$ax_cv_cxx_gcc_abi_demangle" = xyes], [AC_DEFINE([HAVE_GCC_ABI_DEMANGLE],[1],[define if the compiler supports GCC C++ ABI name demangling])]) ])
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