Help required: bootstrap-build of java-1.8.0-openjdk for giflib-5.x update

[Sandro Mani]

Hi

I've proposed a change to update to giflib-5.x for F28+ [1] (which is an 
incompatible update from the current giflib-4.x). I did some initial 
testing in this COPR repo [1], and have hit a problem with 
java-1.8.0-openjdk, which has a BR on itself (java-1.8.0-openjdk-devel), 
resulting in it wanting to pull in also giflib-4 (since the current 
build is compiled against giflib-4), and hence leading to a conflict 
when installing the build dependencies. So I'd need to do a bootstrap 
build of java-1.8.0-openjdk without giflib support. Can someone familiar 
with openjdk packaging suggest the best way to proceed? My attempt to 
just leave out BR: giflib-devel ended up in

*** SRC specified to SetupNativeCompilation LIBSPLASHSCREEN contains 
missing directory 
/builddir/build/BUILD/java-1.8.0-openjdk-1.8.0.151-3.b12.fc28.x86_64/openjdk/jdk/src/share/native/sun/awt/giflib.

Stop.

Note: a side-by-side of giflib-4 and giflib-5 is not possible since per 
upstream both install the header to /usr/include/gif_lib.h, and moving 
the header downstream would require patching dependent packages to tell 
them where to find the correct header.

Thanks
Sandro

[1] https://fedoraproject.org/wiki/User:Smani/Changes/GifLib5
[2] https://copr.fedorainfracloud.org/coprs/smani/giflib5/builds/

[Florian Weimer]

On 01/24/2018 12:10 AM, Sandro Mani wrote:
>  I've proposed a change to update to giflib-5.x for F28+ [1]
> (which is an 
>  incompatible update from the current giflib-4.x). I did some initial 
>  testing in this COPR repo [1], and have hit a problem with 
>  java-1.8.0-openjdk, which has a BR on itself (java-1.8.0-openjdk-devel), 
>  resulting in it wanting to pull in also giflib-4 (since the current 
>  build is compiled against giflib-4), and hence leading to a conflict 
>  when installing the build dependencies. 
You could temporarily build a compat package for libgif.so.4.  I think 
this would help to address this case and others.  I don't see an 
inherent conflict here because OpenJDK only needs libgif.so.4 at build 
time, but not the -devel package for version 4.

Thanks,
Florian

[Sandro Mani]

On 24.01.2018 07:02, Florian Weimer wrote:
>  On 01/24/2018 12:10 AM, Sandro Mani wrote:
> > I've proposed a change to update to giflib-5.x for F28+ [1] (which is 
> > an incompatible update from the current giflib-4.x). I did some 
> > initial testing in this COPR repo [1], and have hit a problem with 
> > java-1.8.0-openjdk, which has a BR on itself 
> > (java-1.8.0-openjdk-devel), resulting in it wanting to pull in also 
> > giflib-4 (since the current build is compiled against giflib-4), and 
> > hence leading to a conflict when installing the build dependencies.
>
>  You could temporarily build a compat package for libgif.so.4.  I think 
>  this would help to address this case and others.  I don't see an 
>  inherent conflict here because OpenJDK only needs libgif.so.4 at build 
>  time, but not the -devel package for version 4. 
Ah good point, hadn't thought
of that!

Thanks
Sandro