Qt Creator Can Be Compiled In Under 3 Minutes With Clang

[Ansla]

sqlite from 2007 is recent stuff. The first use of this tech that I am aware was in KDE 2 with the --enable-final argument to configure. But it looks like in those dark ages it didn't work so well so they dropped it sometime during KDE 3 development.

[Zan Lynx]

The Meson build system

Unity builds are a technique for cutting down build times. The way it works is relatively straightforward. Suppose we have source files src1.c, src2.c and src3.c. Normally we would run the compiler three times, once for each file. In a unity build we instead compile all these sources in a single unit.

Unity builds speed up build time? Since when?

My last experience building KDE and Qt anything was with Gentoo in 2009. Building with O3, GCC seemed to have geometrically increasing RAM and CPU requirements as the file size grew, and therefore unity builds took 3x to 5x longer.