From 33fb2d6b4fb9e8ab317560733d65c848ff1b3fdf Mon Sep 17 00:00:00 2001
From: Liu Yiqun <liuyiqun01@baidu.com>
Date: Mon, 8 May 2017 04:05:58 +0000
Subject: [PATCH] Add some annotations to different OpenBLAS versions.

---
 cmake/external/openblas.cmake | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/cmake/external/openblas.cmake b/cmake/external/openblas.cmake
index 97b6768dec..9d3428cc5b 100644
--- a/cmake/external/openblas.cmake
+++ b/cmake/external/openblas.cmake
@@ -27,9 +27,12 @@ IF(NOT ${CBLAS_FOUND})
     SET(COMMON_ARGS CC=${CMAKE_C_COMPILER} NO_LAPACK=1 NO_SHARED=1)
 
     IF(ANDROID)
+        # arm_soft_fp_abi branch of OpenBLAS to support softfp
+        #   https://github.com/xianyi/OpenBLAS/tree/arm_soft_fp_abi
         SET(OPENBLAS_COMMIT "b5c96fcfcdc82945502a2303116a64d89985daf5")
         SET(OPTIONAL_ARGS HOSTCC=${HOST_C_COMPILER} TARGET=ARMV7 ARM_SOFTFP_ABI=1 USE_THREAD=0 libs)
     ELSEIF(RPI)
+        # use hardfp
         SET(OPENBLAS_COMMIT "v0.2.19")
         SET(OPTIONAL_ARGS HOSTCC=${HOST_C_COMPILER} TARGET=ARMV7 USE_THREAD=0 libs)
     ELSE()
-- 
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