Ethereal-dev: [Ethereal-dev] fix "parse error" with Debian's flex

Note: This archive is from the project's previous web site, ethereal.com. This list is no longer active.

Date Index Thread Index Other Months All Mailing Lists
Date Prev Date Next Thread Prev Thread Next
From: Martin Pool <mbp@xxxxxxxxx>
Date: Mon, 7 Jul 2003 17:25:18 +1000
When I build ethereal's CVS head under Debian unstable, I get a "parse
error" when building ascend-scanner.  For reasons I don't fully
understand, the .c file is somehow getting a macro definition of
ascendwrap() generated by flex, plus a function definition from
ascend-scanner.l.  I suspect the behaviour differs between different
flex versions because the same code works for other people.

Anyhow, this patch seems to fix it.

--- ascend-scanner.l.~1.23.~	2001-12-06 19:25:52.000000000 +1100
+++ ascend-scanner.l	2003-07-07 17:19:04.000000000 +1000
@@ -281,7 +281,15 @@ task:|task|at|time:|octets { return KEYW
 
 %%
 
+/* Some versions of flex seem to create a function-style macro
+ * ascendwrap(n) which returns 1.  (At least Debian's flex 2.5.31-12
+ * does.)  That clashes nastily with this function when the function
+ * name is replaced by the number 1, typically giving a parse error.
+ * -- mbp@xxxxxxxxx
+ */
+#ifndef ascendwrap
 int ascendwrap() { return 1; }
+#endif
 
 void ascend_init_lexer(FILE_T fh)
 {


-- 
Martin