tds: Unspecified pieces
Appendix A Unspecified pieces
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The TDS cannot address the following aspects of a functioning TeX
system:
1. The location of executable programs: this is too site-dependent
even to recommend a location, let alone require one. A site may
place executables outside the `texmf' tree altogether (e.g.,
`/usr/local/bin'), in a platform-dependent directory within
`texmf', or elsewhere.
2. Upgrading packages when new releases are made: we could find no
way of introducing version specifiers into `texmf' that would do
more good than harm, or that would be practical for even a
plurality of installations.
3. The location of implementation-specific files (e.g., TeX `.fmt'
files): by their nature, these must be left to the implementor or
TeX maintainer. See Section ⇒Example implementation-specific
trees.
4. Precisely when a package or file should be considered "local", and
where such local files are installed. See Section ⇒Local
additions for more discussion.
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