From: taigacon <taigacon@gmail.com>
Date: Mon, 23 Apr 2018 22:41:50 +0000 (+0800)
Subject: Fix the problem that enables DYNAMIC_BMI2 macro by mistake on ARM architecture with... 
X-Git-Tag: v1.3.5~3^2~73
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2c3ad058121f0ffa567805a09993c94669f07f3a;p=thirdparty%2Fzstd.git

Fix the problem that enables DYNAMIC_BMI2 macro by mistake on ARM architecture with Clang (#1110)
---

diff --git a/lib/common/compiler.h b/lib/common/compiler.h
index e90a3bcde..b588e1104 100644
--- a/lib/common/compiler.h
+++ b/lib/common/compiler.h
@@ -77,9 +77,9 @@
  * Enabled for clang & gcc >=4.8 on x86 when BMI2 isn't enabled by default.
  */
 #ifndef DYNAMIC_BMI2
-  #if (defined(__clang__) && __has_attribute(__target__)) \
+  #if ((defined(__clang__) && __has_attribute(__target__)) \
       || (defined(__GNUC__) \
-          && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8))) \
+          && (__GNUC__ >= 5 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 8)))) \
       && (defined(__x86_64__) || defined(_M_X86)) \
       && !defined(__BMI2__)
   #  define DYNAMIC_BMI2 1