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-rw-r--r--include/platform.h7
-rw-r--r--libbb/missing_syscalls.c2
2 files changed, 8 insertions, 1 deletions
diff --git a/include/platform.h b/include/platform.h
index 1706b1847..026ebbe17 100644
--- a/include/platform.h
+++ b/include/platform.h
@@ -481,9 +481,14 @@ typedef unsigned smalluint;
#if defined(ANDROID) || defined(__ANDROID__)
# if __ANDROID_API__ < 8
+ /* ANDROID < 8 has no [f]dprintf at all */
# undef HAVE_DPRINTF
-# else
+# elif __ANDROID_API__ < 21
+ /* ANDROID < 21 has fdprintf */
# define dprintf fdprintf
+# else
+ /* ANDROID >= 21 has standard dprintf */
+# endif
# endif
# if __ANDROID_API__ < 21
# undef HAVE_TTYNAME_R
diff --git a/libbb/missing_syscalls.c b/libbb/missing_syscalls.c
index e3c1e924b..093412811 100644
--- a/libbb/missing_syscalls.c
+++ b/libbb/missing_syscalls.c
@@ -40,8 +40,10 @@ int pivot_root(const char *new_root, const char *put_old)
return syscall(__NR_pivot_root, new_root, put_old);
}
+# if __ANDROID_API__ < 21
int tcdrain(int fd)
{
return ioctl(fd, TCSBRK, 1);
}
+# endif
#endif