meson.sh: Invoke meson correctly

Either source or build directory is required as a command line
parameter.

Also use mkdir -p when creating the build directory to avoid errors
when it already exists.

Signed-off-by: Petri Latvala <petri.latvala@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 2 insertions, 2 deletions

diff --git a/meson.sh b/meson.sh
index eff86adb..cbf1a932 100755
--- a/meson.sh
+++ b/meson.sh
@@ -6,8 +6,8 @@ cat > Makefile <<EOF
 default: all
 
 build/build.ninja:
-	mkdir build
-	meson
+	mkdir -p build
+	meson build
 
 all: build/build.ninja
 	ninja -C build