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AC_CONFIG_HEADERS. This should prevent LLVM from needlessly re-compiling on a re-configure. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@16510 91177308-0d34-0410-b5e6-96231b3b80d8
27 lines
784 B
Plaintext
27 lines
784 B
Plaintext
# Check for standard iterator extension. This is modified from
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# http://www.gnu.org/software/ac-archive/htmldoc/ac_cxx_have_ext_hash_set.html
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AC_DEFUN([AC_CXX_HAVE_STD_ITERATOR],
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[AC_CACHE_CHECK(whether the compiler has the standard iterator,
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ac_cv_cxx_have_std_iterator,
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[AC_REQUIRE([AC_CXX_NAMESPACES])
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AC_LANG_PUSH([C++])
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AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
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[[#include <iterator>
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#ifdef HAVE_NAMESPACES
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using namespace std;
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#endif]],
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[[iterator<int,int,int> t; return 0;]])],
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ac_cv_cxx_have_std_iterator=yes,
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ac_cv_cxx_have_std_iterator=no)
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AC_LANG_POP([C++])
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])
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if test "$ac_cv_cxx_have_std_iterator" = yes
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then
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AC_DEFINE(HAVE_STD_ITERATOR,1,[Have std namespace iterator])
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else
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AC_DEFINE(HAVE_STD_ITERATOR,0,[Does not have std namespace iterator])
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fi
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])
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