Description of problem:
rpmbuild -bb paintown.spec (uses cmake and scons)

Version-Release number of selected component:
scons-2.3.4-1.fc20

Additional info:
reporter:       libreport-2.2.3
cmdline:        /usr/bin/python /usr/bin/scons -j 4
executable:     /usr/bin/scons
kernel:         3.16.3-200.fc20.x86_64
type:           Python

Truncated backtrace:
Executor.py:396:prepare:StopError: Source `/usr/lib64/libpng.a' not found, needed by target `misc/libpng.a'.

Traceback (most recent call last):
  File "/usr/lib/scons/SCons/Job.py", line 199, in start
    task.prepare()
  File "/usr/lib/scons/SCons/Taskmaster.py", line 191, in prepare
    executor.prepare()
  File "/usr/lib/scons/SCons/Executor.py", line 396, in prepare
    raise SCons.Errors.StopError(msg % (s, self.batches[0].targets[0]))
StopError: Source `/usr/lib64/libpng.a' not found, needed by target `misc/libpng.a'.

Local variables in innermost frame:
msg: "Source `%s' not found, needed by target `%s'."
s: <SCons.Node.FS.File object at 0xfc1150>
self: <SCons.Executor.Executor object at 0xfcae10>