[Buildroot] Building a usable ImageMagick

[Buildroot] Building a usable ImageMagick

[Baruch Siach]

Hi Buildroot list,

I'm trying to produce a working ImageMagick installation under Buildroot.  
According to my test ImageMagick depends on having *.la files in the 
/usr/lib/ImageMagick-6.4.8/modules-Q16/coders/ directory in order to find its 
codecs at run-time. Unfortunately, the target-finalize target in the main 
Makefile includes the following line:

find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0 | xargs -0 rm -f

which means that all *.la file get removed from the target. What is the best 
approach to solve this issue?

baruch

-- 
                                                     ~. .~   Tk Open Systems
=}------------------------------------------------ooO--U--Ooo------------{=
   - baruch at tkos.co.il - tel: +972.2.679.5364, http://www.tkos.co.il -

[Buildroot] Building a usable ImageMagick

[Thomas Petazzoni]

Hello,

Le Wed, 4 Nov 2009 09:26:40 +0200,
Baruch Siach <baruch@tkos.co.il> a ?crit :

> I'm trying to produce a working ImageMagick installation under
> Buildroot. According to my test ImageMagick depends on having *.la
> files in the /usr/lib/ImageMagick-6.4.8/modules-Q16/coders/ directory
> in order to find its codecs at run-time.

Argh, odd. I just had a quick look at ImageMagick source code, and
that's right, they seem to use the .la files at runtime, at least to
get the list of available modules.

> Unfortunately, the target-finalize target in the main Makefile
> includes the following line:
> 
> find $(TARGET_DIR)/usr/lib \( -name '*.a' -o -name '*.la' \) -print0
> | xargs -0 rm -f
> 
> which means that all *.la file get removed from the target. What is
> the best approach to solve this issue?

.la files really aren't meant to be used at run time, so I would
suggest to fix ImageMagick. Why don't they use the .so files to get the
list of available modules ?

Sincerly,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
http://free-electrons.com

[Buildroot] Building a usable ImageMagick

[Thomas Petazzoni]

Le Wed, 4 Nov 2009 09:24:38 +0100,
Thomas Petazzoni <thomas.petazzoni@free-electrons.com> a ?crit :

> .la files really aren't meant to be used at run time, so I would
> suggest to fix ImageMagick. Why don't they use the .so files to get
> the list of available modules ?

We're not the only ones having the issue it seems:
 http://src.opensolaris.org/source/xref/sfw/usr/src/cmd/ImageMagick/la.patch
 http://src.opensolaris.org/source/xref/jds/spec-files/branches/opensolaris-2008-05/patches/imagemagick-01-ltdl.diff

Sincerly,

Thomas
-- 
Thomas Petazzoni, Free Electrons
Kernel, drivers and embedded Linux development,
consulting, training and support.
http://free-electrons.com