This patch originates from the Debian project, see https://www.debian.org/

18dbpagesize_binpower.dpatch by  <hesso@pool.math.tu-berlin.de>


Make sure that the pagesize passed to db__set_pagesize() is a power of two.

nvi stores the content of files in BDB database structures. When initiating a
file, it picks a page size for the database to fit the file within 15 pages,
with a minimal page size of 1K and maximal of 10K.

In vanilla nvi, this size is calculated as a multiple of 1024. Modern versions
of BDB, however, require the page size of a database to be a power of two, which
this patch addresses, ridding us of the following message:

  BDB0511 page sizes must be a power-of-2

--- nvi-1.81.6.orig/common/exf.c	2009-03-09 01:48:01.695862889 +0100
+++ nvi-1.81.6/common/exf.c	2009-03-09 10:42:41.147866272 +0100
@@ -249,11 +249,10 @@
 		 * (vi should have good locality) or smaller than 1K.
 		 */
 		psize = ((sb.st_size / 15) + 1023) / 1024;
-		if (psize > 10)
-			psize = 10;
-		if (psize == 0)
-			psize = 1;
-		psize *= 1024;
+		if (psize >= 8) psize=8<<10;
+		else if (psize >= 4) psize=4<<10;
+		else if (psize >= 2) psize=2<<10;
+		else psize=1<<10;
 
 		F_SET(ep, F_DEVSET);
 		ep->mdev = sb.st_dev;
ass='active' href='/guix/log/gnu/services/games.scm?showmsg=1'>log</a><a href='/guix/tree/gnu/services/games.scm?id=351e094be1327c24f5acabb6a014b5f3dd412911'>tree</a><a href='/guix/commit/gnu/services/games.scm?id=351e094be1327c24f5acabb6a014b5f3dd412911'>commit</a><a href='/guix/diff/gnu/services/games.scm?id=351e094be1327c24f5acabb6a014b5f3dd412911'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu/services/games.scm'>
<input type='hidden' name='id' value='351e094be1327c24f5acabb6a014b5f3dd412911'/><input type='hidden' name='showmsg' value='1'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/guix/log/?id=351e094be1327c24f5acabb6a014b5f3dd412911&amp;showmsg=1'>root</a>/<a href='/guix/log/gnu?id=351e094be1327c24f5acabb6a014b5f3dd412911&amp;showmsg=1'>gnu</a>/<a href='/guix/log/gnu/services?id=351e094be1327c24f5acabb6a014b5f3dd412911&amp;showmsg=1'>services</a>/<a href='/guix/log/gnu/services/games.scm?id=351e094be1327c24f5acabb6a014b5f3dd412911&amp;showmsg=1'>games.scm</a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th class='left'>Age</th><th class='left'>Commit message (<a href='/guix/log/gnu/services/games.scm?id=351e094be1327c24f5acabb6a014b5f3dd412911'>Collapse</a>)</th><th class='left'>Author</th></tr>
<tr class='logheader'><td><span title='2024-10-07 01:20:22 +0900'>2024-10-07</span></td><td class='logsubject'><a href='/guix/commit/gnu/services/games.scm?id=cf3f9230c302201e4808b322832260c0b9fbeab6'>services: Extend udev rules in joycond-service-type.</a></td><td>Maxim Cournoyer</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/services/games.scm (joycond-service-type): Also extend the udev service
with the configured joycond package.
* doc/guix.texi (Game Services): Update documentation.

Change-Id: I9f7fb0da5cfc1f8a7e8bb5f2ce7161e5e66b2f5e


</td></tr>
<tr class='logheader'><td><span title='2023-01-14 07:53:21 -0500'>2023-01-14</span></td><td class='logsubject'><a href='/guix/commit/gnu/services/games.scm?id=202ac747e697a2373f0201be490e668695283eb4'>gnu: services: Add joycond-service.</a></td><td>David Thompson</td></tr>
<tr class='nohover-highlight'><td/><td colspan='3' class='logmsg'>
* gnu/services/games.scm (joycond-configuration): New configuration type.
(joycond-shepherd-service): New procedure.
(joycond-service-type): New variable.
* doc/guix.texi (Game Services): Document it.


</td></tr>