Published at LXer:

Many, if not most, free and open source software projects are developed primarily on Linux-based systems using the GNU C Library (glibc). Projects that use glibc are likely to depend on functions that are not available on systems that use different C libraries, such as the different BSD flavors. When packages are built on systems that don't use glibc they often fail, because the other C libraries are missing functions found in glibc. The GNU Portability Library can help developers with cross-platform programming needs.

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