Fix default args for cpu features.

facebookresearch · Sep 20, 2019 · 59ebad5 · 59ebad5
1 parent 86adbd5
commit 59ebad5
Show file tree

Hide file tree

Showing 2 changed files with 13 additions and 4 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
@@ -6816,12 +6816,16 @@ $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
 
-{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $target CPUFLAGS+=\"$ARCH_CPUFLAGS\" CXXFLAGS+=\"$ARCH_CXXFLAGS\"" >&5
-$as_echo "$target CPUFLAGS+=\"$ARCH_CPUFLAGS\" CXXFLAGS+=\"$ARCH_CXXFLAGS\"" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $target CPUFLAGS+=\" $ARCH_CPUFLAGS\" CXXFLAGS+=\" $ARCH_CXXFLAGS\"" >&5
+$as_echo "$target CPUFLAGS+=\" $ARCH_CPUFLAGS\" CXXFLAGS+=\" $ARCH_CXXFLAGS\"" >&6; }