helo frnds,

Currently i m facing very critical problem.

I am using RHEL5 and programming language is C.

My problem is how to resolve the package depandancy list.

For example I have a xxx-1.2.2 package currently installed on my system,
and I want to install xxx-1.2.6 package.

Then I must have to install xxx-1.2.3, xxx-1.2.4, xxx-1.2.5 and then after I can install the desired xxx-1.2.6 package.

Dependancy tree like :
===================
xxx-1.2.2 --> xxx-1.2.3--> xxx-1.2.4--> xxx-1.2.5 --> xxx-1.2.6


yum does this exact things. yum first resolves the dependancy list and then after it downlodas all the required package list need to install the dsired packge.

So how can I achive this programatically ?

Yum resolves the dependancy tree but from where ? and how ?

or is there any other way to resolve the package dependancy problem ?

any kind of help is appriciated.

"Yum resolves the dependancy tree but from where ? and how ?"

Each rpm package contains a list of other packages that this rpm depends on. The rpm command does the same thing. So you could find out how to do the things that you want to do by reading the rpm source code.

Rather than reinventing the rpm command you could try issuing the rpm command from within your C program.

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Steve Stites

thnx jailbait

let me describe in some detail...(Its like version dependency)

(what i mean to say is version dependency not package dependency)
for example,
A "xxx-1.2.4" package is installed on my system. and further I wannna just upgrade this package by installing higher version "xxx-1.2.6".

For tht I have 2 questions.

(1) Is it require all the in between packages versions ? (over here is it necessary to install "xxx-1.2.5").

(2) If it is then how can I know the inbetween versions ? and where can I get ?


thnx for ur replay...once again...

(1) No


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Steve Stites

thnx jailbait

ur answer is really very-very much helpfull to me.

thnk u very much 1s again.

thnx a lot.