1dnl AC_SINGLE_CXX_CHECK(CACHEVAR, FUNCTION, HEADER, PROGRAM)
2dnl                     $1,       $2,       $3,     $4,     
3dnl 
4AC_DEFUN([AC_SINGLE_CXX_CHECK],
5 [AC_CACHE_CHECK([for $2 in $3], [$1],
6  [AC_LANG_PUSH([C++])
7   AC_COMPILE_IFELSE(AC_LANG_PROGRAM([#include $3],[$4]),[$1=yes],[$1=no])
8  AC_LANG_POP([C++])])
9 ])
10
11