Description of problem:
I saw this error on building sazanami-fonts package that uses ttx to patch out. this seems appearing for a while but as deprecation warning. and it seems promoted to the error now on python 2.7.

Version-Release number of selected component (if applicable):
fonttools-2.2-8.fc14

How reproducible:
always

Steps to Reproduce:
1.rpmbuild --rebuild sazanami-fonts-0.20040629-14.fc14.src.rpm
2.
3.
  
Actual results:
Parsing 'GSUB' table...
Traceback (most recent call last):
  File "/usr/bin/ttx", line 11, in <module>
    ttx.main(sys.argv[1:])
  File "/usr/lib64/python2.7/site-packages/FontTools/fontTools/ttx.py", line 288, in main
    process(jobs, options)
  File "/usr/lib64/python2.7/site-packages/FontTools/fontTools/ttx.py", line 273, in process
    action(input, output, options)
  File "/usr/lib64/python2.7/site-packages/FontTools/fontTools/ttx.py", line 181, in ttCompile
    ttf.save(output)
  File "/usr/lib64/python2.7/site-packages/FontTools/fontTools/ttLib/__init__.py", line 202, in save
    writer.close()
  File "/usr/lib64/python2.7/site-packages/FontTools/fontTools/ttLib/sfnt.py", line 137, in close
    directory = directory + entry.toString()
  File "/usr/lib64/python2.7/site-packages/FontTools/fontTools/ttLib/sfnt.py", line 196, in toString
    return sstruct.pack(sfntDirectoryEntryFormat, self)
  File "/usr/lib64/python2.7/site-packages/FontTools/sstruct.py", line 74, in pack
    data = apply(struct.pack, (formatstring,) + tuple(elements))
struct.error: 'l' format requires -2147483648 <= number <= 2147483647
error: Bad exit status from /var/tmp/rpm-tmp.PA0I6G (%build)
    Bad exit status from /var/tmp/rpm-tmp.PA0I6G (%build)


Expected results:
No errors happens

Additional info: