Resolving dependencies and other build errors

I’m trying to build a packages for Luminance HDR 2.3.0 (or 2.3.1) using OBS web client since I need it for either (x86_64):

openSUSE_11.4,
SUSE:SLE-11:SP3, or
SUSE:SLE-11:SP2

(Unfortunately I’m stuck with these older distros for the time being)

For SUSE:SLE-11:SP3 & SUSE:SLE-11:SP2 I’m not having success since the OBS can’t resolve dependencies for (a “unresolvable” nothing provides error ) :

libraw-devel
libraw-devel-static
liblcms2-devel

I imagine I might need to make changes to the .spec file, and somehow point the OBS to the source for these dependencies.
& for the openSUSE_11.4 build I get this error:

187s] Linking CXX static library libpfstmo.a
187s] 24%] Built target pfstmo
187s] make: *** [all] Error 2
187s] error: Bad exit status from /var/tmp/rpm-tmp.bUF2wN (%build)
187s]
187s]
187s] RPM build errors:
187s] Bad exit status from /var/tmp/rpm-tmp.bUF2wN (%build)

My project: Welcome - openSUSE Build Service
Source Project: Show KDE:Extra / luminance-hdr - openSUSE Build Service (My project is a copy of this)

Any recommendations on the path of least resistance?

Keep in mind, I’m completely new to OBS (using the web client) and building packages, building from source, etc. but I’m trying to learn as I go.
Thanks!