tce-load -wil compiletc lvm2-dev freetype-dev fuse-dev liblzma-dev dejavu-fonts-ttf

wget https://ftp.gnu.org/gnu/grub/grub-2.12.tar.xz
wget https://unifoundry.com/pub/unifont/unifont-15.1.04/font-builds/unifont-15.1.04.pcf.gz

cd grub-2.12

sudo mkdir -pv /usr/local/share/fonts/unifont
sudo gunzip -c ../unifont-15.1.04.pcf.gz > /usr/local/share/fonts/unifont/unifont.pcf
sudo ln -s /usr/local/share/fonts /usr/share

Add a file missing from the release tarball:
echo depends bli part_gpt > grub-core/extra_deps.lst

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --with-platform=efi --target=x86_64 --disable-werror --enable-grub-mkfont

CC="gcc -flto -mtune=generic -Os -pipe" CXX="g++ -flto -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --target=x86_64 --disable-werror

find . -name Makefile -type f -exec sed -i 's/-g -O2//g' {} \;

make [6m 36.58s, 6m 27.89s]
mkdir /tmp/dest
make DESTDIR=/tmp/dest install

*******************************************************
GRUB2 will be compiled with following components:
Platform: x86_64-efi
With devmapper support: Yes
With memory debugging: No
With disk cache statistics: No
With boot time statistics: No
efiemu runtime: No (not available on efi)
grub-mkfont: Yes
grub-mount: Yes
starfield theme: Yes
With DejaVuSans font from /usr/share/fonts/dejavu/DejaVuSans.ttf
With libzfs support: No (need zfs library)
Build-time grub-mkfont: Yes
With unifont from /usr/share/fonts/unifont/unifont.pcf
With liblzma from -llzma (support for XZ-compressed mips images)
With stack smashing protector: No
*******************************************************
*******************************************************
GRUB2 will be compiled with following components:
Platform: i386-pc
With devmapper support: Yes
With memory debugging: No
With disk cache statistics: No
With boot time statistics: No
efiemu runtime: Yes
grub-mkfont: Yes
grub-mount: Yes
starfield theme: Yes
With DejaVuSans font from /usr/share/fonts/dejavu/DejaVuSans.ttf
With libzfs support: No (need zfs library)
Build-time grub-mkfont: Yes
With unifont from /usr/share/fonts/unifont/unifont.pcf
With liblzma from -llzma (support for XZ-compressed mips images)
With stack smashing protector: No
*******************************************************