Re: [PATCH] Line synchronisation output in comments

According to Eric Blake on 5/25/2007 11:26 AM:
> Meanwhile, I have to port it to HEAD.  And I would also like to fix the bug 
> that I uncovered in the interactions between -s and divert (but probably only 
> on head, as I think it will be pretty invasive for a stable branch).  For an 
> example of the bug, note that "#line 3" is not a preprocessor directive any 
> more.
> 
> $ m4 -s
> divert(2)2divert(1)1
> dnl
> undivert
> ^D
> 1
> #line 1 "stdin"
> 2#line 3 "stdin"
> 

To make sure I don't forget this:

2007-05-28  Eric Blake  <[email protected]>

	* tests/options.at (--syncoutput): Add xfailed test.

Index: tests/options.at
===================================================================
RCS file: /sources/m4/m4/tests/options.at,v
retrieving revision 1.25
diff -u -p -r1.25 options.at
--- tests/options.at	5 Feb 2007 17:31:10 -0000	1.25
+++ tests/options.at	28 May 2007 22:06:58 -0000
@@ -759,6 +759,20 @@ hi
 hi
 ]])

+dnl synclines should always start at the beginning of a line.
+dnl this does not (yet) happen reliably when diversions do not
+dnl always end in newline
+AT_XFAIL_IF([:])
+AT_DATA([in.m4], [[divert(2)2divert(1)1
+dnl
+undivert
+]])
+
+AT_CHECK_M4([-s in.m4], [0], [[1
+#line 1 "stdin"
+2
+]])
+
 AT_CLEANUP



-- 
Don't work too hard, make some time for fun as well!

Eric Blake             [email protected]