1From e94589ed36c4a311355efc46ba3f76523c546057 Mon Sep 17 00:00:00 2001 2From: Thomas Petazzoni <thomas.petazzoni@bootlin.com> 3Date: Wed, 7 Aug 2019 16:17:16 +0200 4Subject: [PATCH] Add RISC-V endian detection 5 63rdparty/msgpack-c/include/msgpack/predef/other/endian.h (which comes 7from Boost) two ways of detecting the endianess: 8 9 (1) It includes <endian.h> if BOOST_LIB_C_GNU is defined, and then 10 use __BYTE_ORDER to decide the endianness. 11 12 (2) Otherwise, if (1) was not possible for some reason, it uses 13 architecture defines to decide the endianness. 14 15(1) works perfectly fine with glibc toolchains, because 16BOOST_LIB_C_GNU is defined, but it doesn't work with musl. Due to 17this, <endian.h> is not included, __BYTE_ORDER is not defined, and 18method (1) does not work, causing build failures on musl toolchains 19that don't have explicit handling by architecture name (method 2). 20 21So this commit fixes RISC-V musl build by adding support for the 22__riscv architecture define, to determine that the endianness is 23little endian. 24 25Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> 26--- 27 3rdparty/msgpack-c/include/msgpack/predef/other/endian.h | 3 ++- 28 1 file changed, 2 insertions(+), 1 deletion(-) 29 30diff --git a/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h b/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h 31index 3c609fa..63a5722 100644 32--- a/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h 33+++ b/3rdparty/msgpack-c/include/msgpack/predef/other/endian.h 34@@ -127,7 +127,8 @@ information and acquired knowledge: 35 defined(__AARCH64EL__) || \ 36 defined(_MIPSEL) || \ 37 defined(__MIPSEL) || \ 38- defined(__MIPSEL__) 39+ defined(__MIPSEL__) || \ 40+ defined(__riscv) 41 # undef MSGPACK_ENDIAN_LITTLE_BYTE 42 # define MSGPACK_ENDIAN_LITTLE_BYTE MSGPACK_VERSION_NUMBER_AVAILABLE 43 # endif 44-- 452.21.0 46 47