Compiled on X8DTU with 2 physical Intel Xeon E5530 CPU (8C16T)

Compile Flags:
# requires
# -fexceptions --> -fexceptions
# -frtti
# -fuse-linker-plugin --> would not link
# -flto depends on -fuse-linker-plugin
CFLAGS='-mtune=generic -Os -pipe -fuse-linker-plugin -flto'
CXXFLAGS='-mtune=generic -Os -pipe -fuse-linker-plugin -flto'
LDFLAGS='-Wl,-O1'
export CFLAGS CXXFLAGS LDFLAGS

Dependencies:
cmake
compiletc
gettext
libxslt-dev
qt-5.x-dev
git
apr-dev
apr-util-dev
boost-1.74-dev
curl-dev
libgd-dev
harfbuzz-icu-dev
hunspell-dev
log4cxx-dev
mpfr-dev
libmspack-dev
popt-dev
poppler07-dev.tcz
uriparser-dev
libzzip-dev

Commands:

cd /tmp

tar xf miktex-21.3.tar.xz

cd miktex-21.3

# replace '~/bin' to '~/.local/bin' for TC
# cmake comes with this option
# -DMIKTEX_USER_LINK_TARGET_DIR='~/.local/bin'
# but it doesn't affect some files

sed -i 's:~/bin:~/.local/bin:g' $(grep -lrF '~/bin')

# IMPORTANT
# Don't do "mkdir build && cd build"
# the data files would not install properly
# they'll be moved by 'cmake' and can't be located by 'make install'

# Note these options remove -O3 from the .makefile 
# -DCMAKE_C_FLAGS_RELEASE='' \
# -DCMAKE_CXX_FLAGS_RELEASE=''

CC=gcc CXX=g++ cmake . \
-DCMAKE_INSTALL_PREFIX='/usr/local' \
-DCMAKE_INSTALL_LIBDIR='lib' \
-DCMAKE_INSTALL_LIBEXECDIR='/usr/local/lib/miktex' \
-DCMAKE_BUILD_TYPE='MinSizeRel' \
-DINSTALL_MIKTEX_HEADERS=ON \
-DINSTALL_STATIC_LIBRARIES=ON \
-DWITH_MAN_PAGES=OFF \
-DMIKTEX_USER_LINK_TARGET_DIR='~/.local/bin' \
-DMIKTEX_LINUX_DIST=TinyCore \
-DMIKTEX_LINUX_DIST_CODE_NAME=corepure64 \
-DMIKTEX_LINUX_DIST_VERSION=12.x \
-DCMAKE_C_FLAGS_RELEASE='' \
-DCMAKE_CXX_FLAGS_RELEASE=''

time make -j15
real    6m 39.60s
user    1h 31m 49s
sys     5m 12.53s

make DESTDIR=/tmp/b-miktex install

# desktop icon
echo X-FullPathIcon=/usr/local/share/pixmaps/miktex-console.png >> /tmp/b-miktex/usr/local/share/applications/miktex-console.desktop

# copyright
cd /tmp
mkdir -p b-miktex/usr/local/share/doc/miktex
cp miktex-21.3/COPYING.txt b-miktex/usr/local/share/doc/miktex

#########################################################################################################################
#############       for the record, log4cxx compiled with '-fno-rtti' cause miktex having this error       ##############
#########################################################################################################################
[ 19%] Linking CXX executable ../../../../sandbox/miktex/bin/linux-x86_64/miktex-pdftoppm
/usr/local/bin/ld: ../../../../sandbox/miktex/bin/linux-x86_64/libmiktex-app.so.4.1.0: undefined reference to `typeinfo for log4cxx::helpers::ObjectPtrBase'
collect2: error: ld returned 1 exit status
make[2]: *** [Libraries/3rd/poppler/utils/CMakeFiles/miktex-pdftoppm.dir/build.make:114: sandbox/miktex/bin/linux-x86_64/miktex-pdftoppm] Error 1
make[2]: Leaving directory '/tmp/miktex-21.3/build'
make[1]: *** [CMakeFiles/Makefile2:3839: Libraries/3rd/poppler/utils/CMakeFiles/miktex-pdftoppm.dir/all] Error 2
make[1]: Leaving directory '/tmp/miktex-21.3/build'
make: *** [Makefile:163: all] Error 2