[PATCH] fixes for android in libraries/unix
ian at well-typed.com
Sun Feb 17 13:58:17 CET 2013
On Tue, Jan 29, 2013 at 07:45:34PM +0100, Nathan Hüsken wrote:
> 2 is difficult. To correctly test if _POSIX_VDISABLE is supported, a
> program must be compiled and run which test if _POSIX_VDISABLE is != -1.
> But that is not possible for cross compilation, because the program can
> not be run.
> Suggestion what should be done here?
The patch did:
+-- the android ndk does not define this symbol
+#define _POSIX_VDISABLE _PC_VDISABLE
so can't you test whether compiling
int i = _POSIX_VDISABLE;
succeeds? I assume that that will fail on Android with an undefined
variable error. Or we could just do
#if !defined(_POSIX_VDISABLE) && defined(_PC_VDISABLE)
#define _POSIX_VDISABLE _PC_VDISABLE
Are you sure the patch is right, though? On Linux I have
_POSIX_VDISABLE == 0 and _PC_VDISABLE == 8.
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