Bug#768741: phlipple: FTBFS in jessie: ld: engine.o: undefined reference to symbol 'cos@@GLIBC_2.2.5'

[Peter Pentchev]

package src:phlipple
tags 768741 + confirmed patch
thanks

On Sun, Nov 09, 2014 at 08:13:56AM +0100, Lucas Nussbaum wrote:
[snip]
> Usertags: qa-ftbfs-20141108 qa-ftbfs
> Justification: FTBFS in jessie on amd64
[snip]
> > gcc -std=gnu99 -Wall -g -g -O2 -fstack-protector-strong -Wformat -Werror=format-security -D_FORTIFY_SOURCE=2  -Wl,-z,relro -Wl,-z,defs  -Wl,-as-needed -Wl,--no-undefined -o phlipple camera.o engine.o game.o gfxconstants.o gradientrenderer.o interpolator.o levels.o main.o mainscreen.o osinterface_sdl.o phlipplerootscene.o quad.o quadrenderer.o scenes.o settings.o textrenderer.o texture.o vertex.o -lSDL -lvorbisfile -lGLEW -lGLU -lGL    -lGLU -lGL -lSDL_mixer -lSDL_image 
> > /usr/bin/ld: engine.o: undefined reference to symbol 'cos@@GLIBC_2.2.5'
> > //lib/x86_64-linux-gnu/libm.so.6: error adding symbols: DSO missing from command line
> > collect2: error: ld returned 1 exit status

Hi Miriam,

Attached is a little patch that adds a, well, a little patch :) to the
phlipple source package to make it link with libm.  I think that the
reason this shows up now is that the libraries that phlipple depends on,
e.g. libvorbis, libvorbisfile, etc, have changed since May to not
explicitly list their own dependencies in the pkg-config output.  In the
May rebuild, phlipple picked up -lm from its dependent libraries'
dependencies, and it compiled just fine; now it doesn't, and it must
figure out that -lm should be added all by itself.

As noted in the patch, I know that this is not a proper fix, but I
believe that it should be a simple minimal targeted fix for the Jessie
freeze.

So what do you think about the attached patch?  I have taken the liberty
of adding a changelog entry and adding myself to the Uploaders, so that
the build is happy, but of course it's perfectly fine if you take just
the patch and commit it yourself.  Still, if you agree, I could commit
it to the pkg-games Subversion repo myself, then prepare a package and
put it up in the sponsoring queue.

Thanks for all your work in pkg-games and Debian in general, and also
thanks to Lucas for his tireless, endless rebuilds! :)

G'luck,
Peter

-- 
Peter Pentchev  roam at ringlet.net roam at FreeBSD.org p.penchev at storpool.com
PGP key:        http://people.FreeBSD.org/~roam/roam.key.asc
Key fingerprint 2EE7 A7A5 17FC 124C F115  C354 651E EFB0 2527 DF13
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