From mboxrd@z Thu Jan  1 00:00:00 1970
From: ludo@gnu.org (Ludovic =?utf-8?Q?Court=C3=A8s?=)
Subject: Re: [PATCH] gnu: Add abbaye
Date: Fri, 02 May 2014 09:05:37 +0200
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	(David Thompson's message of "Thu, 1 May 2014 12:38:09 -0400")
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To: "Thompson, David" <dthompson2@worcester.edu>
Cc: guix-devel <guix-devel@gnu.org>

"Thompson, David" <dthompson2@worcester.edu> skribis:

> On Thu, May 1, 2014 at 12:27 PM, Ludovic Court=C3=A8s <ludo@gnu.org> wrot=
e:
>> I noticed that =E2=80=98abbaye=E2=80=99 segfaults for me, immediately af=
ter opening its
>> first window (splash screen?).
>>
>
> That crash happens with the old version of the sdl-image package
> because it can't use libpng to open images.  Did something go wrong
> where the fixed sdl-image package isn't being used?

Looking at the strace output, it does seem to relate to libpng:

--8<---------------cut here---------------start------------->8---
open("/gnu/store/hf5kklv837xbfcv6gc7gpsj36l69j3sj-glibc-2.19/lib/libpng15.s=
o.15", O_RDONLY|O_CLOEXEC) =3D -1 ENOENT (No such file or directory)
open("/gnu/store/6z7k9ms4sf367c3phl7djhb740ly3dqi-gcc-4.8.2/lib/libpng15.so=
.15", O_RDONLY|O_CLOEXEC) =3D -1 ENOENT (No such file or directory)
open("/gnu/store/hf5kklv837xbfcv6gc7gpsj36l69j3sj-glibc-2.19/lib/libpng15.s=
o.15", O_RDONLY|O_CLOEXEC) =3D -1 ENOENT (No such file or directory)
close(6)                                =3D 0
munmap(0x7f09053e2000, 4096)            =3D 0
--- SIGSEGV {si_signo=3DSIGSEGV, si_code=3DSEGV_MAPERR, si_addr=3D0x8} ---
--8<---------------cut here---------------end--------------->8---

And indeed, =E2=80=98abbaye=E2=80=99 is not explicitly linked against libpn=
g, so it
can=E2=80=99t find it.

If I do:

--8<---------------cut here---------------start------------->8---
LD_LIBRARY_PATH=3D/gnu/store/naxqxdf7f6lfpy4h481h8j8hs2r44v09-libpng-1.5.17=
/lib /gnu/store/9gfzrsj71ph5pk2hxn7mmpsfflz0jpc7-abbaye-1.13/bin/abbaye
--8<---------------cut here---------------end--------------->8---

Then it works like a charm.

I suppose we need to add -lpng on the link command line?

BTW, the splash screen says =E2=80=9Cfreeware=E2=80=9D; would be great if w=
e could
change that to =E2=80=9Cfree software=E2=80=9D.

(Seeing this game makes me feel younger.  ;-))

Thanks,
Ludo=E2=80=99.