Description of problem:

u+0123, latin small letter g with cedilla isn't processed by utf8x.


Version-Release number of selected component (if applicable):


How reproducible:

Try to process the following latex document:

\documentclass[a4paper,10pt]{article}
\usepackage[utf8x]{inputenc}
\begin{document}
\section{Latvian alphabet}
aābcčdeēfgģhiījkķlļmnņoprsštuūvzž
AĀBCČDEĒFGĢHIĪJKĶLĻMNŅOPRSŠTUŪVZŽ
\end{document}

Steps to Reproduce:
1. make a file test.ltx with the specified contents
2. latex test.ltx
  
Actual results:

./test.ltx:8:Package ucs Error: Unknown Unicode character 291 = U+0123,(ucs)
possibly declared in uni-1.def. aābcčdeēfgģ

Expected results:

proper dvi/pdf file generated.

Additional info:

What's surprising, is, only the small g is affected, not the captial one. Of
course, \v{g} can be used instead, if inconvenient.