3 files changed, 26 insertions, 2 deletions
diff --git a/Master/texmf-dist/source/generic/tex4ht/ChangeLog b/Master/texmf-dist/source/generic/tex4ht/ChangeLog
index b88a67a074c..a8c6076c1fc 100644
--- a/Master/texmf-dist/source/generic/tex4ht/ChangeLog
+++ b/Master/texmf-dist/source/generic/tex4ht/ChangeLog
@@ -1,3 +1,10 @@
+2022-10-20  Michal Hoftich  <michal.h21@gmail.com>
+
+	* tex4ht-4ht.tex (floatrow.4ht): basic support for the Floatrow
+	package.
+	https://puszcza.gnu.org.ua/bugs/?578
+	https://tex.stackexchange.com/a/662426/2891
+
 2022-10-19  Michal Hoftich  <michal.h21@gmail.com>
 
 	* tex4ht-html4.tex (html4-math.4ht): calculate vertical alignment
diff --git a/Master/texmf-dist/source/generic/tex4ht/mktex4ht-cnf.tex b/Master/texmf-dist/source/generic/tex4ht/mktex4ht-cnf.tex
index 147cccbe243..3d85a096372 100644
--- a/Master/texmf-dist/source/generic/tex4ht/mktex4ht-cnf.tex
+++ b/Master/texmf-dist/source/generic/tex4ht/mktex4ht-cnf.tex
@@ -1,4 +1,4 @@
-% $Id: mktex4ht-cnf.tex 1212 2022-10-06 10:29:28Z michal_h21 $
+% $Id: mktex4ht-cnf.tex 1219 2022-10-20 14:40:14Z michal_h21 $
 % Manually-maintained file, listing *.4ht files created by tex4ht-4ht.tex.
 % Read by tex4ht-cond4ht.
 %
@@ -62,6 +62,7 @@
 \AddFile{9}{subfigure}
 \AddFile{9}{caption}
 \AddFile{9}{subcaption}
+\AddFile{9}{floatrow}
 \AddFile{9}{makeidx}
 \AddFile{9}{splitidx}
 \AddFile{6}{glossaries}
diff --git a/Master/texmf-dist/source/generic/tex4ht/tex4ht-4ht.tex b/Master/texmf-dist/source/generic/tex4ht/tex4ht-4ht.tex
index b124f822bb3..7a44c341d51 100644
--- a/Master/texmf-dist/source/generic/tex4ht/tex4ht-4ht.tex
+++ b/Master/texmf-dist/source/generic/tex4ht/tex4ht-4ht.tex
@@ -1,4 +1,4 @@
-% $Id: tex4ht-4ht.tex 1216 2022-10-17 15:18:30Z michal_h21 $
+% $Id: tex4ht-4ht.tex 1219 2022-10-20 14:40:14Z michal_h21 $
 % tex tex4ht-4ht   or   ht tex tex4ht-4ht
 %
 % Copyright 2009-2022 TeX Users Group    
@@ -12352,6 +12352,22 @@ prevent this issue.
 \endinput
 >>>        \AddFile{9}{subcaption}
 
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+\Section{floatrow.sty}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+We must prevent Floatrow from redefining of basic LaTeX
+environments, such as table.
+
+\<floatrow.4ht\><<<
+% floatrow.4ht (|version), generated from |jobname.tex
+% Copyright 2022 TeX Users Group
+|<TeX4ht license text|>
+\def\:tempa#1{}
+\HLet\flrow@restyle\:tempa
+\Hinput{floatrow}
+\endinput
+>>>  \AddFile{9}{floatrow}
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 \Chapter{Index and Glossary}