+#!/bin/sh
+set -e -u
+
+command -v brew >/dev/null 2>&1 || {
+ echo >&2 "Install homebrew first: http://brew.sh"
+ exit 1
+}
+
+PACKAGES=""
+PACKAGES="$PACKAGES bison"
+PACKAGES="$PACKAGES cmake"
+PACKAGES="$PACKAGES coreutils"
+PACKAGES="$PACKAGES gawk"
+PACKAGES="$PACKAGES gnu-sed --with-default-names" # For busybox build.
+PACKAGES="$PACKAGES gnu-tar"
+PACKAGES="$PACKAGES lzip"
+PACKAGES="$PACKAGES pkgconfig"
+PACKAGES="$PACKAGES python3"
+brew install $PACKAGES
+
+# bison is keg-only, but we need updated 'bison' in path:
+brew link bison --force
+
+sudo mkdir -p /data/data/com.termux/files/usr
+sudo chown -R `whoami` /data