libxcb-1.12: optimizations above -O1 causing multiple applications to stop working
Submitted by Jonas Stein
Assigned to xcb mailing list dummy
initially reported on Gentoo https://bugs.gentoo.org/616402
Problem: TeamViewer 12 and Adobe acroread 9.x and probably other closed source applications do not start anymore
Workaround: compile with CFLAGS="-march=native -O1 -pipe"
Compiler used: gcc-6.4.0