swi-prolog-packages: Add more information about help.pl problem

[Leonardo Taccari <leot%NetBSD.org@localhost>]

Module Name:	pkgsrc-wip
Committed By:	Leonardo Taccari <leot%NetBSD.org@localhost>
Pushed By:	leot
Date:		Wed Feb 6 11:45:42 2019 +0100
Changeset:	350e4a00306f6b6398a1c2d96a3a699fb69f0e7b

Modified Files:
	swi-prolog-packages/TODO

Log Message:
swi-prolog-packages: Add more information about help.pl problem

To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=350e4a00306f6b6398a1c2d96a3a699fb69f0e7b

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

diffstat:
 swi-prolog-packages/TODO | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diffs:
diff --git a/swi-prolog-packages/TODO b/swi-prolog-packages/TODO
index ae20e1909b..cca10cb12e 100644
--- a/swi-prolog-packages/TODO
+++ b/swi-prolog-packages/TODO
@@ -4,5 +4,8 @@
   regression? (this is probably intended, also the documentation always refers
   to swipl)
   Was it just a link to bin/swipl or did it also loaded some modules?
-- Built-in help (e.g. via help/1 or apropos/1) does not work with swipl (not
-  sure if this is a regression or possibly related to missing bin/swi-prolog)
+- Built-in help (e.g. via help/1 or apropos/1) does not work with swipl...
+  It seems that library/help.pl is installed based on INSTALL_DOCUMENTATION in
+  src/CMakeLists.txt, but it is should be part of swi-prolog-lite library (that
+  have -DINSTALL_DOCUMENTATION=OFF).  We should probably install it
+  unconditionally as part of swi-prolog-lite.