git.m6w6.name Git - awesomized/libmemcached/blob - m4/pandora_check_cxx_standard.m4

   1 dnl  Copyright (C) 2009 Sun Microsystems, Inc.
   2 dnl This file is free software; Sun Microsystems, Inc.
   3 dnl gives unlimited permission to copy and/or distribute it,
   4 dnl with or without modifications, as long as this notice is preserved.
   5
   6 AC_DEFUN([PANDORA_CHECK_CXX_STANDARD],[
   7   dnl AC_REQUIRE([AC_CXX_COMPILE_STDCXX_0X])
   8   AS_IF([test "$GCC" = "yes"],
   9         [AS_IF([test "$ac_cv_cxx_compile_cxx0x_native" = "yes"],[],
  10                [AS_IF([test "$ac_cv_cxx_compile_cxx0x_gxx" = "yes"],
  11                       [CXX_STANDARD="-std=gnu++0x"],
  12                       [CXX_STANDARD="-std=gnu++98"])
  13                ])
  14         ])
  15   AM_CXXFLAGS="${CXX_STANDARD} ${AM_CXXFLAGS}"
  16
  17   save_CXXFLAGS="${CXXFLAGS}"
  18   CXXFLAGS="${CXXFLAGS} ${CXX_STANDARD}"
  19   AC_CXX_HEADER_STDCXX_98
  20   CXXFLAGS="${save_CXXFLAGS}"
  21
  22   AC_SUBST([CXX_STANDARD])
  23 ])