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* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that

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'#include <map>' works and that you can apply ++ to iterators.
This commit is contained in:
Paul Eggert
2006-02-02 23:53:07 +00:00
parent 8c86f0ef98
commit d9735e9e3e
2 changed files with 16 additions and 1 deletions
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7
ChangeLog
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@@ -1,3 +1,10 @@
2006-02-02 Paul Eggert <eggert@cs.ucla.edu>
More portability fixes for problems summarized by Nelson H. F. Beebe.
* m4/cxx.m4 (BISON_TEST_FOR_WORKING_CXX_COMPILER): Check that
'#include <map>' works and that you can apply ++ to iterators.
2006-02-01 Paul Eggert <eggert@cs.ucla.edu> 2006-02-01 Paul Eggert <eggert@cs.ucla.edu>
Work around portability problems summarized by Nelson H. F. Beebe in Work around portability problems summarized by Nelson H. F. Beebe in

10
m4/cxx.m4
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@@ -29,10 +29,18 @@ AC_DEFUN([BISON_TEST_FOR_WORKING_CXX_COMPILER],
[AC_LANG_PROGRAM( [AC_LANG_PROGRAM(
[#include <cstdlib> [#include <cstdlib>
#include <iostream> #include <iostream>
#include <map>
#include <string> #include <string>
using namespace std;], using namespace std;],
[std::cerr << ""; [std::cerr << "";
cout << "";])], cout << "";
typedef std::pair<unsigned int, int> uipair;
std::map<unsigned int, int> m;
std::map<unsigned int, int>::iterator i;
m.insert (uipair (4, -4));
for (i = m.begin (); i != m.end (); ++i)
if (i->first != 4)
return 1;])],
[bison_cv_cxx_works=yes], [bison_cv_cxx_works=yes],
[bison_cv_cxx_works=no], [bison_cv_cxx_works=no],
[bison_cv_cxx_works=cross]) [bison_cv_cxx_works=cross])