auctex: Automatic Private
5.5.2 Automatic Customization for a User
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You should specify where you store your private TeX macros, so AUCTeX
can extract their information. The extracted information will go to the
directories listed in 'TeX-auto-private'
Use 'M-x TeX-auto-generate <RET>' to extract the information.
-- User Option: TeX-macro-private
Directories where you store your personal TeX macros. The value
defaults to the directories listed in the 'TEXINPUTS' and
'BIBINPUTS' environment variables or to the respective directories
in '$TEXMFHOME' if no results can be obtained from the environment
variables.
-- User Option: TeX-auto-private
List of directories containing automatically generated AUCTeX style
files. These correspond to the personal TeX macros.
-- Command: TeX-auto-generate TEX AUTO
('M-x TeX-auto-generate <RET>') Generate style hook for TEX and
store it in AUTO. If TEX is a directory, generate style hooks for
all files in the directory.
-- User Option: TeX-style-private
List of directories containing hand generated AUCTeX style files.
These correspond to the personal TeX macros.