[prev in list] [next in list] [prev in thread] [next in thread] 

List:       graphicsmagick-help
Subject:    Re: [GM-help] Cross compiling ARM sysroot
From:       Bob Friesenhahn <bfriesen () simple ! dallas ! tx ! us>
Date:       2015-05-19 13:48:53
Message-ID: alpine.GSO.2.01.1505190831440.4186 () freddy ! simplesystems ! org
[Download RAW message or body]

On Tue, 19 May 2015, Francesco Aru wrote:

>>> I really appreciate you shared your recipe !
>> Sorry for this problem.  I will try to make things better.
>>
>> Bob
>
> I think is not a GraphicsMagick issue but a build system problem.
> I use a similar recipe for ImageMagick but I really prefer
> GraphicsMagick because of the preformance ;)

Perhaps the issue could be described as both a GraphicsMagick issue 
and a build system problem.  The problem partly stems from my prior 
descision to search for libraries and headers based on the package 
installation prefix (impacts FreeType, libxml2, and libwmf).  This 
breaks detection of libraries and headers installed in an 
architecture-specific subdirectory.

Unfortunately, the problem is difficult to solve properly because the 
various *-config scripts output a wide variety of content, including 
content (e.g. spurious -I/usr/include) which would subsequently block 
users from using libraries that they installed themselves and might 
result in a broken build.  This forces me to still make value 
judgements as to the parts of the output to include, and the parts to 
ignore.

The various *-config scripts are very "selfish" and output supposedly 
required options which might work ok with a simple "Hello world" 
application but not for a complex application like GraphicsMagick. 
All of these disparate demands must somehow be balanced in order to 
provide reliable compilation, but also the freedom for the user to 
install libraries in multiple places, and to install versions which 
are different which came with the base OS.

There are admonishments to switch to relying on pkg-config, but 
pkg-config is partially platform specific, requires a carefully 
managed pkg-config installation, and still seems to work best with all 
libraries installed in the same directory.

Bob
-- 
Bob Friesenhahn
bfriesen@simple.dallas.tx.us, http://www.simplesystems.org/users/bfriesen/
GraphicsMagick Maintainer,    http://www.GraphicsMagick.org/

------------------------------------------------------------------------------
One dashboard for servers and applications across Physical-Virtual-Cloud 
Widest out-of-the-box monitoring support with 50+ applications
Performance metrics, stats and reports that give you Actionable Insights
Deep dive visibility with transaction tracing using APM Insight.
http://ad.doubleclick.net/ddm/clk/290420510;117567292;y
_______________________________________________
Graphicsmagick-help mailing list
Graphicsmagick-help@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/graphicsmagick-help
[prev in list] [next in list] [prev in thread] [next in thread]