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;
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<div class='path'>path: <a href='/guix/log/?id=8bea1e05fac2e24ac926f155d76e42aa90690467'>root</a>/<a href='/guix/log/gnu?id=8bea1e05fac2e24ac926f155d76e42aa90690467'>gnu</a>/<a href='/guix/log/gnu/build?id=8bea1e05fac2e24ac926f155d76e42aa90690467'>build</a>/<a href='/guix/log/gnu/build/image.scm?id=8bea1e05fac2e24ac926f155d76e42aa90690467'>image.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/build/image.scm?id=8bea1e05fac2e24ac926f155d76e42aa90690467&amp;showmsg=1'>Expand</a>)</th><th class='left'>Author</th></tr>
<tr><td><span title='2024-10-14 14:08:43 +0200'>2024-10-14</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=886b410e6f641b473931d7269a9ddbf10a67937f'>image: Add support for btrfs.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/build/image.scm (make-btrfs-image): New variable.
* gnu/system/image.scm (system-disk-image): Support btrfs.

Change-Id: I80a5b52ec478ce5927d6208e324cbb70282c647a
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Roman Scherer</td></tr>
<tr><td><span title='2024-10-14 14:08:43 +0200'>2024-10-14</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=727a72c5e26345257a5e6b83387d51b3b15cc542'>image: Use file system options in make-vfat-image.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/build/image.scm (make-vfat-image): Use file system options.

Change-Id: I791aadd2803d1ef96fc79cf8910a74a0083d2b6e
Signed-off-by: Ludovic Courtès &lt;ludo@gnu.org&gt;
</span></span></td><td>Roman Scherer</td></tr>
<tr><td><span title='2024-08-31 10:42:46 +0200'>2024-08-31</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=a97ca00a5dcf7bcce6e9ec04557d02d65d80732f'>gnu: image: Reformat comments.</a><span class='msg-avail'>...<span class='msg-tooltip'>I wrote these to fit on their lines, so the pointless widows bug me.

* gnu/build/image.scm (make-iso9660-image): M-q comments.
</span></span></td><td>Tobias Geerinckx-Rice</td></tr>
<tr><td><span title='2023-06-14 14:52:21 +0300'>2023-06-14</span></td><td><a href='/guix/commit/gnu/build/image.scm?id=cd55aa98011c42b8e97561f4eea024be751bcceb'>gnu: image: Add support for unformatted partitions.</a><span class='msg-avail'>...<span class='msg-tooltip'>* gnu/build/image.scm (make-unformatted-image): New procedure.
(make-partition-image): Add support for unformatted partition.
* gnu/system/image.scm (system-disk-image)[partition-&gt;gpt-type]: Add
case for using unformatted partition uuid.
</span></span></td><td>Efraim Flashner</td></tr>