Re: [Xen-devel] [PATCH 2 of 3] tools/m4: add AC_LANG_SOURCE to fix autoconf warnings

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Wed, 2012-06-13 at 14:10 +0100, Olaf Hering wrote:
> Please rerun autoconf after applying this.

I did this but there was no change to the configure script.

I'm going to assume this is normal with the 2.67 version of autoconf and
that changes would only be expected with 2.68 which you are using. IOW
I'll commit as is.

> Signed-off-by: Olaf Hering <olaf@xxxxxxxxx>
> 
> diff -r 0dfe08c91739 -r 59762b446ab4 tools/m4/pthread.m4
> --- a/tools/m4/pthread.m4
> +++ b/tools/m4/pthread.m4
> @@ -24,13 +24,13 @@ AC_DEFUN([AX_CHECK_PTHREAD],[
>          AX_PTHREAD_CV2VARS
>          AX_PTHREAD_VARS([AX_SAVEVAR_SAVE])
>          AX_PTHREAD_VARS([AX_PTHREAD_VAR_APPLY])
> -        AC_LINK_IFELSE([
> +        AC_LINK_IFELSE([AC_LANG_SOURCE([
>  #include <pthread.h>
>  int main(void) {
>    pthread_atfork(0,0,0);
>    pthread_create(0,0,0,0);
>  }
> -],[],[ax_cv_pthread_flags=failed])
> +])],[],[ax_cv_pthread_flags=failed])
>          AX_PTHREAD_VARS([AX_SAVEVAR_RESTORE])
>      ])
>      if test "x$ax_cv_pthread_flags" = xfailed; then
> diff -r 0dfe08c91739 -r 59762b446ab4 tools/m4/ptyfuncs.m4
> --- a/tools/m4/ptyfuncs.m4
> +++ b/tools/m4/ptyfuncs.m4
> @@ -9,7 +9,7 @@ AC_DEFUN([AX_CHECK_PTYFUNCS], [
>              fi
>              AX_SAVEVAR_SAVE(LIBS)
>              LIBS="$LIBS $ax_cv_ptyfuncs_libs"
> -            AC_LINK_IFELSE([
> +            AC_LINK_IFELSE([AC_LANG_SOURCE([
>  #ifdef INCLUDE_LIBUTIL_H
>  #include INCLUDE_LIBUTIL_H
>  #endif
> @@ -17,7 +17,7 @@ int main(void) {
>    openpty(0,0,0,0,0);
>    login_tty(0);
>  }
> -],[
> +])],[
>                  break
>              ],[])
>              AX_SAVEVAR_RESTORE(LIBS)
> 
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> http://lists.xen.org/xen-devel



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