Fix armeabi and armv7-a for Android (GH #509)

1 files changed, 7 insertions, 0 deletions

diff --git a/crc.cpp b/crc.cpp
index 21153d3d..89df19fa 100644
--- a/crc.cpp
+++ b/crc.cpp
@@ -8,6 +8,13 @@
 

 NAMESPACE_BEGIN(CryptoPP)

 

+// We set CRYPTOPP_ARM_CRC32_AVAILABLE based on compiler version.

+// Android does not provide -march=armv8-a+crc or -march=armv8.1-a+crc, so

+// it looks like we will have to disable CRC acceleration of their devices.

+#if defined(__ANDROID__)

+# undef CRYPTOPP_ARM_CRC32_AVAILABLE

+#endif

+

 // crc-simd.cpp

 #if (CRYPTOPP_ARM_CRC32_AVAILABLE)

 extern void CRC32_Update_ARMV8(const byte *s, size_t n, word32& c);