tce-load -i compiletc glib2-dev automake libtool-dev

cd vala-0.40.3

sed -i '115d; 121,137d; 139,140d' configure.ac
sed -i '/valadoc/d' Makefile.am
ACLOCAL= autoreconf -fiv 

CC="gcc -flto -fuse-linker-plugin -mtune=generic -Os -pipe" CXX="g++ -flto -fuse-linker-plugin -mtune=generic -Os -pipe -fno-exceptions -fno-rtti" ./configure --prefix=/usr/local --localstatedir=/var --disable-static

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

make [1m 26.04s]
sudo make install