| dnl AC_SINGLE_CXX_CHECK(DEFINEVAR, CACHEVAR, FUNCTION, HEADER, PROGRAM) | |
| dnl $1, $2, $3, $4, $5 | |
| dnl | |
| AC_DEFUN([AC_SINGLE_CXX_CHECK], | |
| [AC_CACHE_CHECK([for $3 in $4], [$2], | |
| [AC_LANG_PUSH([C++]) | |
| AC_COMPILE_IFELSE(AC_LANG_SOURCE([$5]),[$2=yes],[$2=no]) | |
| AC_LANG_POP([C++])]) | |
| if test "$$2" = "yes" | |
| then | |
| AC_DEFINE($1, 1, [Define to 1 if your compiler defines $3 in the $4 | |
| header file.]) | |
| fi]) | |