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</XMP>
<p><STRONG>NOTE</STRONG>: one possible reason for errors is that some external programs
may be broken due to the combination of your environment and the way

<A HREF="INSTALL.html#INSTALL_make_2">make test</A>
 exercises them. This may happen for example if you have
one or more of these environment variables set:
<CODE>LC_ALL LC_CTYPE LANG</CODE>. In certain UNIXes especially the non-English
locales are known to cause programs to exhibit mysterious errors.
If you have any of the above environment variables set, please try
<CODE>setenv LC_ALL C</CODE> or&lt;LC_ALL=C;export LC_ALL&gt;, for <CODE>csh</CODE>-style and
<CODE>Bourne</CODE>-style shells, respectively, from the command line and then
retry 
<A HREF="INSTALL.html#INSTALL_make_2">make test</A>
. If the tests then succeed, you may have a broken
program that is confusing the testing. Please run the troublesome test
by hand as shown above and see whether you can locate the program.
Look for things like:
<CODE>exec, `backquoted command`, system, open("|...")</CODE> or <CODE>open("...|")</CODE>.
All these mean that Perl is trying to run some external program.
<p><p><hr>