The GNU C Library (glibc) offers a way to load optimized libraries that use additional hardware features that might not be present on all systems. In this article, I discuss a new approach to building the x86-64 variant of Red Hat Enterprise Linux (RHEL) 9 and share Red Hat's recommendation for that build.īackground of the x86-64 microarchitecture levels Programs that use newer CPU instructions might not run on older CPUs. The distribution's default compiler flags are significant for hardware-platform compatibility. One of the most important early decisions when building a Linux distribution is the scope of supported hardware.
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