commit 2cb1d3b7133149f7ce13ca7518d7f9e63c73864e
author Dan Albert <danalbert@google.com> Wed Jun 15 20:20:32 2016 +0000
committer Copybara-Service <copybara-worker@google.com> Thu Apr 02 13:48:02 2020 -0700
tree 8e0b60b082b1fd96d577b3ce1b768c162df2bdd2
parent 8b30793850021fd400777ed99d5cde83c7b5ca2d

Add an Android version check for GNU strerror_r.

Summary:
Android didn't gain GNU's strerror_r until Marshmallow. If we're
building libc++ against something older (we build the NDK library
against the oldest release we support, currently Gingerbread), fall
back to the POSIX version.

Reviewers: mclow.lists, EricWF

Subscribers: tberghammer, danalbert, srhines, cfe-commits

Differential Revision: http://reviews.llvm.org/D21402

llvm-svn: 272827
GitOrigin-RevId: 953d7d44755e9be7ffa4845cdcaf0ced7eec34fa

src/system_error.cpp

diff --git a/src/system_error.cpp b/src/system_error.cpp
index 885afd1..87f35ae 100644
--- a/src/system_error.cpp
+++ b/src/system_error.cpp
@@ -21,6 +21,10 @@
 #include "string"
 #include "string.h"
 
+#if defined(__ANDROID__)
+#include <android/api-level.h>
+#endif
+
 _LIBCPP_BEGIN_NAMESPACE_STD
 
 // class error_category
@@ -58,7 +62,8 @@
 
 string do_strerror_r(int ev);
 
-#if defined(__linux__) && !defined(_LIBCPP_HAS_MUSL_LIBC)
+#if defined(__linux__) && !defined(_LIBCPP_HAS_MUSL_LIBC)                      \
+    && (!defined(__ANDROID__) || __ANDROID_API__ >= 23)
 // GNU Extended version
 string do_strerror_r(int ev) {
     char buffer[strerror_buff_size];