All-in-one build command

`./make-linux` clones and builds:

- arrow
- brotli
- lz4
- parquet
- snappy
- zlib
- zstd
- this project

as a statically linked binary. Two Boost libs are still pulled in as
shared libs, should probably fix that, too, for ultimate portability.

build-sqlite

@@ -8,7 +8,7 @@ fetch_if_needed() {
     curl --fail "https://sqlite.org/2018/sqlite-autoconf-${VERSION}.tar.gz" > sqlite.tar.gz
     tar xf sqlite.tar.gz
     rm sqlite.tar.gz
-    ln -s sqlite-autoconf-${VERSION} sqlite
+    mv sqlite-autoconf-${VERSION} sqlite
   fi
 }