Chapter 11. Customized programs

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10 Font packages must declare a dependency on

xutils (>> 4.0.3)

in their control

data.

11 Font packages that provide one or more

fonts.scale

files as described above must

invoke

update fonts scale

on each directory into which they installed fonts before

invoking

update fonts dir

on that directory. This invocation must occur in both the

postinst

(for all arguments) and

postrm

(for all arguments except

upgrade

) scripts.

12 Font packages that provide one or more

fonts.alias

files as described above must

invoke

update fonts alias

on each directory into which they installed fonts. This

invocation must occur in both the

postinst

(for all arguments) and

postrm

(for all

arguments except

upgrade

) scripts.

13 Font packages must invoke

update fonts dir

on each directory into which they in 

stalled fonts. This invocation must occur in both the

postinst

(for all arguments) and

postrm

(for all arguments except

upgrade

) scripts.

14 Font packages must not provide alias names for the fonts they include which collide with

alias names already in use by fonts already packaged.

15 Font packages must not provide fonts with the same XLFD registry name as another font

already packaged.

11.8.6 Application defaults files

Application defaults files must be installed in the directory

/etc/X11/app defaults/

(use

of a localized subdirectory of

/etc/X11/

as described in the X Toolkit Intrinsics   C Lan 

guage Interface manual is also permitted). They must be registered as

conffile

s or han 

dled as configuration files. Packages must not provide the directory

/usr/X11R6/lib/X11

/app defaults/

.

Customization of programs' X resources may also be supported with the provision of a file

with the same name as that of the package placed in the

/etc/X11/Xresources/

directory,

which must registered as a

conffile

or handled as a configuration file.

9

Important: pack 

ages that install files into the

/etc/X11/Xresources/

directory must conflict with

xbase

(<< 3.3.2.3a 2)

; if this is not done it is possible for the installing package to destroy a

previously existing

/etc/X11/Xresources

file which had been customized by the system

administrator.

11.8.7 Installation directory issues

Packages using the X Window System should not be configured to install files under the

/usr

/X11R6/

directory unless they use

imake

. The

/usr/X11R6/

directory hierarchy should be

9

Note that this mechanism is not the same as using app defaults; app defaults are tied to the client binary on

the local file system, whereas X resources are stored in the X server and affect all connecting clients.