[Rpm-maint] [rpm-software-management/rpm] Revert "Revert "Only build bundled fts if system has a bad version th… (#324)

[Jeff Johnson]

I should supply the reasoning for internalizing ...

glibc always adds a symbol version to deal with incompatible "security related" changes.

The constraint imposed (for better or worse) on rpm at the time was that the *binary* would Just Work independent of LFS. Internalizing a copy of a useful interface seemed the most robust implementation at the time. Chasing glibc symbol versioning as well as achieving "portable" to non-glibc systems would have been enormously invasive.

The internal copy of fts.c has always been difficult to maintain on *BSD systems. But at least the changes are well localized, and do not involve trying to call versioned symbols peculiar to glibc alone.

YMMV, everyone's does.

Any other questions? 

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