In this short video I am showing the output from a compilation of Glibc 2.28, where I am showing how the build is using the -Werror flag of GCC. Most of the casual level programmers who are writing code nowadays, don't really care about the quality of their code, mostly because they are only paid to produce the code and then debug it. If a programmer also gets paid to do the debugging, then they are not really going to care about the quality of it and will probably just be like the average programmer who works at Microsoft. The Glibc programmers seem to be different from a lot of the other developers out there, because they actually seem to care about the quality of their code and they now require the whole build to be performed with the -Werror flag of GCC. Admittedly Glibc is coded in C rather than C++, so it is a bit easier for them to work out what the warnings mean.