文件操作 - ax_cxx_header_pre_stdcxx.m4
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文件: /usr/share/aclocal/ax_cxx_header_pre_stdcxx.m4
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# ============================================================================= # https://www.gnu.org/software/autoconf-archive/ax_cxx_header_pre_stdcxx.html # ============================================================================= # # SYNOPSIS # # AX_CXX_HEADER_PRE_STDCXX # # DESCRIPTION # # Check whether pre-ISO-C++ headers exist. # # LICENSE # # Copyright (c) 2008 Benjamin Kosnik <bkoz@redhat.com> # # 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 7 AU_ALIAS([AC_CXX_HEADER_PRE_STDCXX], [AX_CXX_HEADER_PRE_STDCXX]) AC_DEFUN([AX_CXX_HEADER_PRE_STDCXX], [ AC_CACHE_CHECK(for pre-ISO C++ include files, ax_cv_cxx_pre_stdcxx, [AC_LANG_SAVE AC_LANG_CPLUSPLUS ac_save_CXXFLAGS="$CXXFLAGS" CXXFLAGS="$CXXFLAGS -Wno-deprecated" # Omit defalloc.h, as compilation with newer compilers is problematic. AC_TRY_COMPILE([ #include <new.h> #include <iterator.h> #include <alloc.h> #include <set.h> #include <hashtable.h> #include <hash_set.h> #include <fstream.h> #include <tempbuf.h> #include <istream.h> #include <bvector.h> #include <stack.h> #include <rope.h> #include <complex.h> #include <ostream.h> #include <heap.h> #include <iostream.h> #include <function.h> #include <multimap.h> #include <pair.h> #include <stream.h> #include <iomanip.h> #include <slist.h> #include <tree.h> #include <vector.h> #include <deque.h> #include <multiset.h> #include <list.h> #include <map.h> #include <algobase.h> #include <hash_map.h> #include <algo.h> #include <queue.h> #include <streambuf.h> ],, ax_cv_cxx_pre_stdcxx=yes, ax_cv_cxx_pre_stdcxx=no) CXXFLAGS="$ac_save_CXXFLAGS" AC_LANG_RESTORE ]) if test "$ax_cv_cxx_pre_stdcxx" = yes; then AC_DEFINE(PRE_STDCXX_HEADERS,,[Define if pre-ISO C++ header files are present. ]) fi ])
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