[Toybox] [PATCH] Fix glibc build after 013876f067a11ebfcf47789921b376e7bf3bf5b8.

[enh]

(note also that that value of $PATH doesn't make sense for Android. is
there a reason you didn't use _PATH_DEFPATH?)
On Fri, Sep 14, 2018 at 9:56 AM enh <enh at google.com> wrote:
>
> /usr/include/unistd.h:626:15: error: conflicting types for 'confstr'
> ---
>  lib/portability.h | 5 ++++-
>  1 file changed, 4 insertions(+), 1 deletion(-)
>
> diff --git a/lib/portability.h b/lib/portability.h
> index 0404c85..85ca42b 100644
> --- a/lib/portability.h
> +++ b/lib/portability.h
> @@ -257,10 +257,13 @@ extern CODE prioritynames[], facilitynames[];
>  #endif
>  void xgetrandom(void *buf, unsigned len, unsigned flags);
>
> -// android NDK doesn't have confstr
> +// Android's bionic libc doesn't have confstr.
> +#ifdef __BIONIC__
>  #ifndef _CS_PATH
>  #define _CS_PATH 0
>  #define _CS_V7_ENV 1
>  #include <string.h>
>  static inline void confstr(int a, char *b, int c) {strcpy(b, a ?
> "POSIXLY_CORRECT=1" : "/bin:/usr/bin");}
>  #endif
> +
> +#endif
> --
> 2.19.0.397.gdd90340f6a-goog