COMPVER(5) Standards, Environments, and Macros COMPVER(5)
compver - compatible versions file
is an ASCII
file used to specify previous versions of the
associated package which are upward compatible. It is created by a
Each line of the file specifies a previous version of the associated
package with which the current version is backward compatible.
Since some packages may require installation of a specific version of
another software package, compatibility information is extremely crucial.
Consider, for example, a package called "A" which requires version "1.0"
of application "B" as a prerequisite for installation. If the customer
installing "A" has a newer version of "B" (version 1.3), the compver
for "B" must indicate that "1.3" is compatible with version "1.0" in
order for the customer to install package "A".
Example 1: Sample compver file.
A sample compver
file is shown below: Version 1.3 Version 1.0
SEE ALSO pkginfo(5) Application Packaging Developer's Guide
The comparison of the version string disregards white space and tabs. It
is performed on a word-by-word basis. Thus, "Version 1.3" and "Version
1.3" would be considered the same.
The entries in the compver
file must match the values assigned to the VERSION
parameter in the pkginfo(5)
October 4, 1996 COMPVER(5)