| Revision 217,
749 bytes
checked in by martin, 6 years ago
(diff) |
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Set svn:eol-style as appropriate for all files
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Property svn:eol-style set to
native
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| 1 | dnl @synopsis AC_CXX_NAMESPACES |
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| 2 | dnl |
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| 3 | dnl If the compiler can prevent names clashes using namespaces, define |
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| 4 | dnl HAVE_NAMESPACES. |
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| 5 | dnl |
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| 6 | dnl @category Cxx |
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| 7 | dnl @author Todd Veldhuizen |
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| 8 | dnl @author Luc Maisonobe <luc@spaceroots.org> |
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| 9 | dnl @version 2004-02-04 |
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| 10 | dnl @license AllPermissive |
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| 11 | |
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| 12 | AC_DEFUN([AC_CXX_NAMESPACES], |
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| 13 | [AC_CACHE_CHECK(whether the compiler implements namespaces, |
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| 14 | ac_cv_cxx_namespaces, |
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| 15 | [AC_LANG_SAVE |
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| 16 | AC_LANG_CPLUSPLUS |
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| 17 | AC_TRY_COMPILE([namespace Outer { namespace Inner { int i = 0; }}], |
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| 18 | [using namespace Outer::Inner; return i;], |
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| 19 | ac_cv_cxx_namespaces=yes, ac_cv_cxx_namespaces=no) |
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| 20 | AC_LANG_RESTORE |
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| 21 | ]) |
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| 22 | if test "$ac_cv_cxx_namespaces" = yes; then |
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| 23 | AC_DEFINE(HAVE_NAMESPACES,,[define if the compiler implements namespaces]) |
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| 24 | fi |
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| 25 | ]) |
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