if [ ! -d "$1" ]; then termux_error_exit "'$1' seems to be a path but is not a directory"; fi
export TERMUX_PKG_BUILDER_DIR
TERMUX_PKG_BUILDER_DIR=$(realpath "$1")
if [ ! -d "$1" ]; then termux_error_exit "'$1' seems to be a path but is not a directory"; fi
export TERMUX_PKG_BUILDER_DIR
TERMUX_PKG_BUILDER_DIR=$(realpath "$1")