build: add option to build only for native CPU

Significantly reduces compilation time for uses who are interested
to run binaries only on the build machine.

Type: make
Change-Id: I431f6f7374b6dfa8b3f7c72dc69f3d5cafd1f6bb
Signed-off-by: Damjan Marion <damarion@cisco.com>

1 files changed, 7 insertions, 0 deletions

diff --git a/configure b/configure
index d1a356e46a2..29f7dbd3258 100755
--- a/configure
+++ b/configure
@@ -11,6 +11,7 @@ build_type=release
 src_dir="$(dirname "$(readlink -f "$0")")"
 host_arch=$(uname -m)
 arch=${host_arch}
+native_only=no
 wipe=no
 args=()
 
@@ -27,6 +28,7 @@ OPTIONS:
   --build-dir, -b         Build directory
   --install-dir, -i       Install directory
   --build-type, -t        Build type (release, debug, ...)
+  --native-only, -n       Only compile for Native CPU (no multiarch)
   --wipe, -w              Wipe whole repo (except startup.* files)
 __EOF__
 }
@@ -73,6 +75,10 @@ while (( "$#" )); do
         exit 1
       fi
       ;;
+    -n|--native-only)
+      native_only=yes
+      shift 1
+      ;;
     -w|--wipe)
       wipe=yes
       shift 1
@@ -105,6 +111,7 @@ args+=("-DCMAKE_PREFIX_PATH=/opt/vpp/external/${arch}")
 args+=("-DCMAKE_EXPORT_COMPILE_COMMANDS:BOOL=ON")
 args+=("-DCMAKE_INSTALL_PREFIX=${install_dir}")
 args+=("-DCMAKE_BUILD_TYPE:STRING=${build_type}")
+[ "${native_only}" == "yes" ] && args+=("-DVPP_BUILD_NATIVE_ONLY:BOOL=ON")
 
 [ "${wipe}" == "yes" ] && git clean -fdx --exclude=startup.\*