[Kde-imaging] library versioning question

[Seb Ruiz]

Hi Gilles,

Indeed, we did have a similar problem that you are facing.  SQLite
conveniently managed to break compatibility between releases, and at
one stage they removed all threading support which made it totally
useless for us.  What we have done is bundle the sqlite libraries
which are written as C, as part of the project.

But you are going to bundle a completely separate binary, does dcraw
not come with a library which you could use? It would probably be much
easier and a much nicer solution. Anyway...

In response to your question, I'm not sure why dcraw won't compile
with "-std=iso9899:1990", and I don't know how to remove a flag from
gcc, but you might be able to overcome it by overriding the CFLAGS.
This is really naughty behaviour, but it might work in the mean time
until someone can help out.  Perhaps you should try asking Dirk.

Seb


On 25/09/06, Gilles Caulier <caulier.gilles at kdemail.net> wrote:
> On Monday 25 September 2006 08:10, Seb Ruiz wrote:
> > On 25/09/06, Gilles Caulier <caulier.gilles at kdemail.net> wrote:
> > > We are already talking about lib version with Achim using IRC channel in
> > > the past. If i rememeber, --version-info need to be changed... and i'm so
> > > surprise than nobody have fixed that in svn.
> >
> > Speaking of which, what irc channel do you guys hangout in. I prefer
> > irc over email.
>
> Seb,
>
> I have an indeep technical question for you. Like you came from Amarok team,
> perhaps you have already talk about...
>
> My problem is relevant of dcraw program used in Rawconverter plugin (and also
> digiKam)
>
> Actually, we using an external instance of dcraw program. dcraw is a pure C
> Ansi implementation. It used to decode Raw image data to RGB color space.
>
> We have some problems with old dcraw versions. A lots of users report
> compatibilty dysfonctions, because dcraw command line options changes
> reguliary. There is no compatibility with command options.
>
> To have contacted the dcraw author, he will take a care about this problem in
> the future, but the problem will exist during any years...
>
> My idea to solve this problem at now, is to include dcraw source code itself
> into the plugin. We can just compile dcraw.c program to generate a dedicaced
> kipidcraw binary program witch will be used by the plugin instead dcraw. Like
> this we using a full tested and compatible dcraw version.
>
> The dcraw.c implementation embedded into kipi plugin will not be untouched.
>
> My problem using this way is to compile dcraw.c implementation with all C
> options used by kde project. I have a problem with the "-std=iso9899:1990"
> gcc option witch is uncompatible with the current implementation. Look like
> the dcraw compilation failed in my computer (here compiled into the digiKam
> core) :
>
> if gcc -DHAVE_CONFIG_H -I. -I. -I../../.. -I../../../digikam/digikam
> -I/opt/kde3/include -I/usr/lib/qt3/include -I/usr/X11R6/include
> -DQT_THREAD_SUPPORT  -D_REENTRANT -w -std=iso9899:1990 -W -Wall
> -Wchar-subscripts -Wshadow -Wpointer-arith -Wmissing-prototypes
> -Wwrite-strings -D_XOPEN_SOURCE=500 -D_BSD_SOURCE -g3 -fno-inline
> -Wformat-security -Wmissing-format-attribute -MT digikamdcraw-dcraw.o -MD -MP
> -MF ".deps/digikamdcraw-dcraw.Tpo" -c -o digikamdcraw-dcraw.o `test -f
> 'dcraw.c' || echo './'`dcraw.c; \
> then mv -f ".deps/digikamdcraw-dcraw.Tpo" ".deps/digikamdcraw-dcraw.Po"; else
> rm -f ".deps/digikamdcraw-dcraw.Tpo"; exit 1; fi
> In file included from dcraw.c:50:
> /usr/include/lcms.h:1340: error: expected â=â, â,â, â;â, âasmâ or
> â__attribute__â before âintâ
> /usr/include/lcms.h:1366: error: expected â=â, â,â, â;â, âasmâ or
> â__attribute__â before âWORDâ
> /usr/include/lcms.h:1417: error: expected â=â, â,â, â;â, âasmâ or
> â__attribute__â before âFixed32â
> /usr/include/lcms.h:1418: error: expected â=â, â,â, â;â, âasmâ or
> â__attribute__â before âintâ
> make: *** [digikamdcraw-dcraw.o] Erreur 1
>
> In the Makefile.am, i have this options :
>
> ...
> #-- dcraw binary -------------------------------------------------
>
> bin_PROGRAMS = digikamdcraw
>
> digikamdcraw_CFLAGS = -w
>
> digikamdcraw_SOURCES = dcraw.c
>
> digikamdcraw_LDFLAGS = -O4 -lm -ljpeg -llcms
> ...
>
> In fact, all compile fine if i remove by hand the "-std=iso9899:1990" gcc
> option from the command line !
>
> My question is simple : witch automake command i must use into the Makefile.am
> to force dcraw compilation to unuse this gcc option ?
>
> Thanks in advance for your help
>
> Gilles
>
>


-- 
http://www.sebruiz.net/