akhiezer wrote:
>> From: William Harrington <kb0...@berzerkula.org>
>> To: BLFS Support List <blfs-support@linuxfromscratch.org>
>> Date: Mon, 23 Dec 2013 04:07:25 -0600
>> Subject: [blfs-support] Xorg required dep when following links in BLFS
>>
>> Greetings,
>>
>> There is a problem with BLFS and Xorg deps when someone follows the
>> links for required dependencies of Xorg libs.
>>
>> An example:
>>
>> When a user attempts to build WIreshark, the require deps will take
>> them all the way to xorg-proto.
>>
>> I have also been told that util-macros isn't required for xproto. I
>> haven't confirmed, so I won't deal with that here.
>>
>> THe problem is, that when someone is following required dependencies
>> and gets to xorg-proto or util macros, XORG_PREFIX won't be set if
>> they follow dependencies rather than going straight to the Xorg
>> introduction page.
>>
>> xorg-proto ( which has util-macros as required dependency) does not
>> have Xorg introduction as a required dependency where XORG_PREFIX and
>> XORG_CONFIG is set.
>>
>> This is a problem and has been for some time. Users constantly come to
>> support (more irc than the mailing list) with issues regarding
>> libraries and headers not found. Of course, we don't support zombies,
>> but clearly, if you go from top to bottom and then someone decides
>> that they would want to install Xorg dependencies while following
>> required dependency links, they don't get XORG_CONFIG or XORG_PREFIX
>> set.
>>
>> Since the Xorg libs will eventually link the required deps all the way
>> to util-macros as a required dependency of xorg-proto, I think it'd be
>> a suggestion to have the xorg introduction as a dependency of util-
>> macros or xorg-proto or both.
>>
>> A lot of people do follow links rather than know if they want to build
>> some or all of Xorg, and when they do this, they don't get to the Xorg
>> introduction page for Xorg. People can argue all they want that users
>> should know if they want any or all of Xorg installed before building
>> an app that may use a GUI. The problem is that the required dependency
>> chain is broken. I followed Wireshark all the way back to util-macros,
>> and nothing about XORG_PREFIX and XORG_CONFIG was mentioned.
>>
>
>
> Might it be best addressed in blfs chapter 2 or 3, if it's considered to
> be a 'global', 'overview' kind of issue? BLFS users are ~expected to have
> processed those chapters. That would help avoid a lot of repetition
> elsewhere?

 From a practical matter, those sections will be skipped by a lot of 
users.  Adding the preface matter as a prereq to a couple of packages 
seems to be the minimal solution.

   -- Bruce

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