commit 785b249df02434764db052507e956a2655fed0bb
author Dan Albert <danalbert@google.com> Fri Mar 17 11:47:09 2017 -0700
committer Dan Albert <danalbert@google.com> Mon Mar 20 12:57:13 2017 -0700
tree 2eed4698abee108ebc71a25c82778a3beb220a96
parent 616b2d87eabee34559b12a3ddd3e057a1ad49879

Only rename mmap to mmap64 if we're L or newer.

Without this, setting `__USE_FILE_OFFSET64` and targeting pre-L made
mmap entirely unavailable.

Test: make checkbuild
Bug: https://github.com/android-ndk/ndk/issues/332
Change-Id: I9f61c44f8d9ab5c7cae845c9f89a7d889c6df365

libc/include/sys/mman.h

diff --git a/libc/include/sys/mman.h b/libc/include/sys/mman.h
index 79f1faf..a3dc95c 100644
--- a/libc/include/sys/mman.h
+++ b/libc/include/sys/mman.h
@@ -49,7 +49,7 @@
 #define POSIX_MADV_WILLNEED   MADV_WILLNEED
 #define POSIX_MADV_DONTNEED   MADV_DONTNEED
 
-#if defined(__USE_FILE_OFFSET64)
+#if defined(__USE_FILE_OFFSET64) && __ANDROID_API__ >= __ANDROID_API_L__
 void* mmap(void*, size_t, int, int, int, off_t) __RENAME(mmap64) __INTRODUCED_IN(21);
 #else
 void* mmap(void*, size_t, int, int, int, off_t);