--- /tmp/gcc-9-9.3.0-22swmkwdan/debian/libstdc++-9-doc_9.3.0-22_all.deb
+++ libstdc++-9-doc_9.3.0-22_all.deb
├── file list
│ @@ -1,3 +1,3 @@
│  -rw-r--r--   0        0        0        4 2021-02-07 17:48:24.000000 debian-binary
│ --rw-r--r--   0        0        0   187724 2021-02-07 17:48:24.000000 control.tar.xz
│ --rw-r--r--   0        0        0  9142472 2021-02-07 17:48:24.000000 data.tar.xz
│ +-rw-r--r--   0        0        0   187304 2021-02-07 17:48:24.000000 control.tar.xz
│ +-rw-r--r--   0        0        0  9142376 2021-02-07 17:48:24.000000 data.tar.xz
├── control.tar.xz
│ ├── control.tar
│ │ ├── ./md5sums
│ │ │ ├── ./md5sums
│ │ │ │┄ Files differ
├── data.tar.xz
│ ├── data.tar
│ │ ├── file list
│ │ │ @@ -192,15 +192,15 @@
│ │ │  -rw-r--r--   0 root         (0) root         (0)     9029 2020-03-12 11:07:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/manual/using_dynamic_or_shared.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)    19784 2020-03-12 11:07:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/manual/using_exceptions.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)    35038 2020-03-12 11:07:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/manual/using_headers.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)    10858 2020-03-12 11:07:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/manual/using_macros.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)     6686 2020-03-12 11:07:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/manual/using_namespaces.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)     5620 2020-03-12 11:07:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/manual/utilities.html
│ │ │  drwxr-xr-x   0 root         (0) root         (0)        0 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/
│ │ │ --rw-r--r--   0 root         (0) root         (0)     1899 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/_formulas.log.gz
│ │ │ +-rw-r--r--   0 root         (0) root         (0)     1900 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/_formulas.log.gz
│ │ │  -rw-r--r--   0 root         (0) root         (0)     1829 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/_formulas.tex.gz
│ │ │  -rw-r--r--   0 root         (0) root         (0)     3506 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/a00002.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)      101 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/a00002.js
│ │ │  -rw-r--r--   0 root         (0) root         (0)     9861 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/a00002_source.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)     2919 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/a00005.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)    13543 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/a00005_source.html
│ │ │  -rw-r--r--   0 root         (0) root         (0)     8859 2021-02-07 17:48:24.000000 ./usr/share/doc/gcc-9-base/libstdc++/user/a00008_source.html
│ │ ├── ./usr/share/doc/gcc-9-base/libstdc++/user/_formulas.log.gz
│ │ │ ├── _formulas.log
│ │ │ │ @@ -1,8 +1,8 @@
│ │ │ │ -This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020/Debian) (preloaded format=latex 2021.2.7)  7 FEB 2021 19:25
│ │ │ │ +This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020/Debian) (preloaded format=latex 2021.10.1)  2 OCT 2021 07:43
│ │ │ │  entering extended mode
│ │ │ │   restricted \write18 enabled.
│ │ │ │   %&-line parsing enabled.
│ │ │ │  **_formulas.tex
│ │ │ │  (./_formulas.tex
│ │ │ │  LaTeX2e <2020-10-01> patch level 4
│ │ │ │  L3 programming layer <2021-01-09> xparse <2020-03-03>
│ │ │ │ @@ -118,14 +118,14 @@
│ │ │ │  l.10   \newunicodechar
│ │ │ │                        {⁻}{${}^{-}$}% Superscript minus^^M
│ │ │ │  *** (cannot \read from terminal in nonstop modes)
│ │ │ │  
│ │ │ │   
│ │ │ │  Here is how much of TeX's memory you used:
│ │ │ │   1320 strings out of 481253
│ │ │ │ - 16147 string characters out of 5915915
│ │ │ │ + 16147 string characters out of 5915914
│ │ │ │   288526 words of memory out of 5000000
│ │ │ │   18306 multiletter control sequences out of 15000+600000
│ │ │ │   403430 words of font info for 27 fonts, out of 8000000 for 9000
│ │ │ │   14 hyphenation exceptions out of 8191
│ │ │ │   83i,0n,88p,228b,36s stack positions out of 5000i,500n,10000p,200000b,80000s
│ │ │ │  No pages of output.
│ │ ├── ./usr/share/doc/gcc-9-base/libstdc++/user/index.html
│ │ │ @@ -20,15 +20,15 @@
│ │ │       Tags actually work like they're supposed to in HTML.
│ │ │  -->
│ │ │  
│ │ │  <h1>libstdc++ Source Documentation</h1>
│ │ │  
│ │ │  <h2>Documentation Overview</h2>
│ │ │  
│ │ │ -<p class="smallertext">Generated on 2021-02-07.</p>
│ │ │ +<p class="smallertext">Generated on 2021-10-02.</p>
│ │ │  
│ │ │  <p>There are two types of documentation for libstdc++.  One is the
│ │ │     distribution documentation, which can be read
│ │ │     <a href="../index.html">offline in the documentation directory</a>
│ │ │     or
│ │ │     <a href="https://gcc.gnu.org/onlinedocs/libstdc++/index.html">online</a>.
│ │ │  </p>