Only set -mcpu=sandybridge on x86_64

diff --git a/genbindings.sh b/genbindings.sh
index b5cbca366dace820b8dffcdfcdf8fcd748938d42..0e426022ca334c03420239475f31fbb6bb07193f 100755 (executable)
--- a/genbindings.sh
+++ b/genbindings.sh
@@ -147,7 +147,17 @@ clang -o /dev/null -ffile-prefix-map=$HOME/.cargo= genbindings_path_map_test_fil
 # Now that we've done our last non-LTO build, turn on LTO in CFLAGS as well
 export BASE_CFLAGS="-ffile-prefix-map=$HOME/.cargo= -frandom-seed=42"
 ENV_TARGET=$(rustc --version --verbose | grep host | awk '{ print $2 }' | sed 's/-/_/g')
-export CFLAGS_$ENV_TARGET="$BASE_CFLAGS -march=sandybridge -mcpu=sandybridge -mtune=sandybridge"
+case "$ENV_TARGET" in
+       "x86_64"*)
+               export RUSTFLAGS="$RUSTFLAGS -C target-cpu=sandybridge"
+               export CFLAGS_$ENV_TARGET="$BASE_CFLAGS -march=sandybridge -mcpu=sandybridge -mtune=sandybridge"
+               ;;
+       *)
+               # Assume this isn't targeted at another host and build for the host's CPU.
+               export RUSTFLAGS="$RUSTFLAGS -C target-cpu=native"
+               export CFLAGS_$ENV_TARGET="$BASE_CFLAGS -mcpu=native"
+               ;;
+esac
 rm genbindings_path_map_test_file.c
 
 cargo build