Fix default args for cpu features.

facebookresearch · Sep 20, 2019 · abdc114 · abdc114
1 parent 86adbd5
commit abdc114
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Showing 2 changed files with 11 additions and 2 deletions.
diff --git a/acinclude/ax_check_cpu.m4 b/acinclude/ax_check_cpu.m4
@@ -9,7 +9,12 @@ AC_MSG_CHECKING([for cpu arch])
   case $target in
     amd64-* | x86_64-*)
       ARCH_CPUFLAGS="-mpopcnt -msse4"
-      ARCH_CXXFLAGS="-m64";;
+      ARCH_CXXFLAGS="-m64"
+      ;;
+    aarch64*-*)
+dnl This is an arch for Nvidia Xavier a proper detection would be nice.
+      ARCH_CPUFLAGS="-march=armv8.2-a"
+      ;;
     *) ;;
   esac
 

diff --git a/configure b/configure
@@ -6816,7 +6816,11 @@ $as_echo_n "checking for cpu arch... " >&6; }
   case $target in
     amd64-* | x86_64-*)
       ARCH_CPUFLAGS="-mpopcnt -msse4"
-      ARCH_CXXFLAGS="-m64";;
+      ARCH_CXXFLAGS="-m64"
+      ;;
+    aarch64*-*)
+      ARCH_CPUFLAGS="-march=armv8.2-a"
+      ;;
     *) ;;
   esac