compiled on RPI3B with 5.4.51-piCore-v8 (beta release)

Compile Flags:
CFLAGS="-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe"
CPPFLAGS="-march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fno-exceptions -fno-rtti"
LDFLAGS="-Wl,-O1"
export CFLAGS CPPFLAGS LDFLAGS

Dependencies:
automake
compiletc
git
libtool-dev
ncurses-dev
sqlite3-dev
texinfo

Commands:

git clone https://github.com/chewing/libchewing.git

cd libchewing

# enable "subdir-objects" #
sed -i 's/AM_INIT_AUTOMAKE/AM_INIT_AUTOMAKE(\[subdir-objects\])/g' configure.ac

./autogen.sh

./configure --prefix=/usr/local

make -j

# configure summary
Build options:
  Build OS                linux-gnu
  Host OS                 linux-gnu
  Version                 0.5.1
  Install prefix          /usr/local
  Enable gcov             false
  With sqlite3            yes
  With internal sqlite3   no
  Build TextUI sample     yes
  Default CFLAGS           -Wall -march=armv8-a+crc -mtune=cortex-a72 -Os -pipe -fvisibility=hidden
  Default CPPFLAGS         -D_GNU_SOURCE
  Default LDFLAGS          -lsqlite3