Re: [PATCH] autoconf: Add test for sys/select.h header file

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Hi,

On Fri, 25 Jan 2008, Jakub Narebski wrote:

> diff --git a/configure.ac b/configure.ac
> index af177fd..85d7ef5 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -235,6 +235,12 @@ test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
>  ## Checks for header files.
>  AC_MSG_NOTICE([CHECKS for header files])
>  #
> +# Define NO_SYS_SELECT_H if you don't have sys/select.h.
> +AC_CHECK_HEADER([sys/select.h],
> +[NO_SYS_SELECT_H=],
> +[NO_SYS_SELECT_H=UnfortunatelyYes])
> +AC_SUBST(NO_SYS_SELECT_H)
> +#

Just because I am curious: would that not define "NO_SYS_SELECT_H" in both 
cases?  IOW would the "ifdef NO_SYS_SELECT_H" not be triggered all the 
time?

Thanks,
Dscho

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