[PATCH] Support Android NDK (which has neither futimes nor futimens)

[Neil Henning]

The latest NDK has no support for futimes nor funtimens. Following the ideas shown in this [[ http://stackoverflow.com/questions/19374749/how-to-work-around-absence-of-futimes-in-android-ndk | Stack Overflow post ]] I've created a simple patch which supports setLastModificationAndAccessTime using the NDK.

Comments and suggestions are welcome.

http://llvm-reviews.chandlerc.com/D2357

Files:
  lib/Support/Unix/Path.inc

Index: lib/Support/Unix/Path.inc
===================================================================
--- lib/Support/Unix/Path.inc
+++ lib/Support/Unix/Path.inc
@@ -50,6 +50,10 @@
 #include <mach-o/dyld.h>
 #endif
 
+#ifdef __ANDROID__
+#include <sys/syscall.h>
+#endif
+
 // Both stdio.h and cstdio are included via different pathes and
 // stdcxx's cstdio doesn't include stdio.h, so it doesn't #undef the macros
 // either.
@@ -536,6 +540,12 @@
   Times[0].tv_usec = 0;
   Times[1] = Times[0];
   if (::futimes(FD, Times))
+#elif defined(__ANDROID__)
+  timespec Times[2];
+  Times[0].tv_sec = Time.toPosixTime();
+  Times[0].tv_nsec = 0;
+  Times[1] = Times[0];
+  if (syscall(__NR_utimensat, FD, NULL, Times, 0))
 #else
 #error Missing futimes() and futimens()
 #endif
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