'$' as "valid" character in identifiers

[Michael Stefaniuc <mstefani@redhat.com>]

echo 'int dollar$ = 1;' > /tmp/dollar.c
gcc -c -Wall -Wextra -o /tmp/dollar.o /tmp/dollar.c
echo $?
0
No comment ...

I didn't find '$' as valid identifier character in "The C Programming
Language (ANSI C)" nor does http://c0x.coding-guidelines.com/5.2.1.html
allow it as valid char in the "source character set".

I found it because sparse tripped over that in the Wine source code.
Yes, i already sent a patch to fix that in Wine.

Not sure if sparse should change its behavior here;
cgcc -c -Wall -Wextra -o /tmp/dollar.o /tmp/dollar.c
/tmp/dollar.c:1:11: error: Expected ; at end of declaration
/tmp/dollar.c:1:11: error: got $
is a adequate response.

bye
	michael
-- 
Michael Stefaniuc               Tel.: +49-711-96437-199
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