Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!helios!calvin.tamu.edu
From: cnh5730@calvin.tamu.edu (Chuck Herrick)
Newsgroups: comp.sys.next
Subject: strange behavior of the C preprocessor
Message-ID: <9060@helios.TAMU.EDU>
Date: 13 Oct 90 04:45:36 GMT
Sender: usenet@helios.TAMU.EDU
Organization: geodynamics research institute, texas a+m univ
Lines: 27
Originator: cnh5730@calvin.tamu.edu

Does this appear to be a bug in the C preprocessor to you?

With 
	setenv cpp /lib/cpp
I ran the following script (extracted from Larry Walls' Configure
in patch2)

cat <<'EOT' >testcpp.c
#define ABC abc
#define XYZ xyz
ABC.XYZ
EOT
echo 'Maybe "'$cpp'" will work...'
$cpp <testcpp.c >testcpp.out 2>&1

inspection of testcpp.out revealed that the file
contained
	abc .xyz
and NOT 
	abc.xyz
Since Larry's script checks to see if 'abc.xyz' IS
contained, it promptly bombs out.
By the way, /lib/cpp is a link to /lib/cpp-16


-- 
	Chuck Herrick				cnh5730@calvin.tamu.edu