gbranden pushed a commit to branch master
in repository groff.

commit a7c91bfccfef77cd29eef41ec6cc84b05576c868
Author: G. Branden Robinson <[email protected]>
AuthorDate: Thu Dec 18 13:03:13 2025 -0600

    Recognize materials licensed under LGPLv3.
    
    * LGPLv3: New file, retrieved from gnu.org on this date.
    
    * LICENSES: Discuss materials distributed under LGPLv3.  State where to
      find texts of FDL and LGPLv3 licenses.  (It's not a big mystery.)
    
    * MANIFEST: Document presence of "LGPLv3" file.
    
    * Makefile.am (EXTRA_DIST): Ship "LGPLv3" file.
    
    * src/include/relocate.h:
    * src/libs/libgroff/relocate.cpp: Cosmetically reindent and reflow
      copyright and license notices.  Reflect renaming of LGPL from
      "Library" to "Lesser" General Public License.
---
 ChangeLog                      |  15 ++++
 LGPLv3                         | 165 +++++++++++++++++++++++++++++++++++++++++
 LICENSES                       |  13 +++-
 MANIFEST                       |   1 +
 Makefile.am                    |   1 +
 src/include/relocate.h         |  32 ++++----
 src/libs/libgroff/relocate.cpp |  25 ++++---
 7 files changed, 224 insertions(+), 28 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 7fabe8f68..031233141 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,18 @@
+2025-12-18  G. Branden Robinson <[email protected]>
+
+       Recognize materials licensed under LGPLv3.
+
+       * LGPLv3: New file, retrieved from gnu.org on this date.
+       * LICENSES: Discuss materials distributed under LGPLv3.  State
+       where to find texts of FDL and LGPLv3 licenses.  (It's not a big
+       mystery.)
+       * MANIFEST: Document presence of "LGPLv3" file.
+       * Makefile.am (EXTRA_DIST): Ship "LGPLv3" file.
+       * src/include/relocate.h:
+       * src/libs/libgroff/relocate.cpp: Cosmetically reindent and
+       reflow copyright and license notices.  Reflect renaming of LGPL
+       from "Library" to "Lesser" General Public License.
+
 2025-12-18  G. Branden Robinson <[email protected]>
 
        Retire our hypot(3) replacement in favor of gnulib's.  Werner
diff --git a/LGPLv3 b/LGPLv3
new file mode 100644
index 000000000..0a041280b
--- /dev/null
+++ b/LGPLv3
@@ -0,0 +1,165 @@
+                   GNU LESSER GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <https://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+  This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+  0. Additional Definitions.
+
+  As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+  "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+  An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+  A "Combined Work" is a work produced by combining or linking an
+Application with the Library.  The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+  The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+  The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+  1. Exception to Section 3 of the GNU GPL.
+
+  You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+  2. Conveying Modified Versions.
+
+  If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+   a) under this License, provided that you make a good faith effort to
+   ensure that, in the event an Application does not supply the
+   function or data, the facility still operates, and performs
+   whatever part of its purpose remains meaningful, or
+
+   b) under the GNU GPL, with none of the additional permissions of
+   this License applicable to that copy.
+
+  3. Object Code Incorporating Material from Library Header Files.
+
+  The object code form of an Application may incorporate material from
+a header file that is part of the Library.  You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+   a) Give prominent notice with each copy of the object code that the
+   Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the object code with a copy of the GNU GPL and this license
+   document.
+
+  4. Combined Works.
+
+  You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
+portions of the Library contained in the Combined Work and reverse
+engineering for debugging such modifications, if you also do each of
+the following:
+
+   a) Give prominent notice with each copy of the Combined Work that
+   the Library is used in it and that the Library and its use are
+   covered by this License.
+
+   b) Accompany the Combined Work with a copy of the GNU GPL and this license
+   document.
+
+   c) For a Combined Work that displays copyright notices during
+   execution, include the copyright notice for the Library among
+   these notices, as well as a reference directing the user to the
+   copies of the GNU GPL and this license document.
+
+   d) Do one of the following:
+
+       0) Convey the Minimal Corresponding Source under the terms of this
+       License, and the Corresponding Application Code in a form
+       suitable for, and under terms that permit, the user to
+       recombine or relink the Application with a modified version of
+       the Linked Version to produce a modified Combined Work, in the
+       manner specified by section 6 of the GNU GPL for conveying
+       Corresponding Source.
+
+       1) Use a suitable shared library mechanism for linking with the
+       Library.  A suitable mechanism is one that (a) uses at run time
+       a copy of the Library already present on the user's computer
+       system, and (b) will operate properly with a modified version
+       of the Library that is interface-compatible with the Linked
+       Version.
+
+   e) Provide Installation Information, but only if you would otherwise
+   be required to provide such information under section 6 of the
+   GNU GPL, and only to the extent that such information is
+   necessary to install and execute a modified version of the
+   Combined Work produced by recombining or relinking the
+   Application with a modified version of the Linked Version. (If
+   you use option 4d0, the Installation Information must accompany
+   the Minimal Corresponding Source and Corresponding Application
+   Code. If you use option 4d1, you must provide the Installation
+   Information in the manner specified by section 6 of the GNU GPL
+   for conveying Corresponding Source.)
+
+  5. Combined Libraries.
+
+  You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+   a) Accompany the combined library with a copy of the same work based
+   on the Library, uncombined with any other library facilities,
+   conveyed under the terms of this License.
+
+   b) Give prominent notice with the combined library that part of it
+   is a work based on the Library, and explaining where to find the
+   accompanying uncombined form of the same work.
+
+  6. Revised Versions of the GNU Lesser General Public License.
+
+  The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+  Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+  If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
+apply, that proxy's public statement of acceptance of any version is
+permanent authorization for you to choose that version for the
+Library.
diff --git a/LICENSES b/LICENSES
index 8176766b2..04506fbf6 100644
--- a/LICENSES
+++ b/LICENSES
@@ -30,7 +30,8 @@ The GNU troff manual, doc/groff.texi, written in Texinfo, is
 dual-licensed under the GNU Free Documentation License (FDL) _and_ the
 GNU GPL.  This status is to honor the intentions of its authors and to
 permit frictionless migration of material between that manual and
-groff's man pages, which are under the GPL as noted above.
+groff's man pages, which are under the GPL as noted above.  Find a copy
+of the FDL license in the file "FDL".
 
 Files in the contrib/ subdirectory of the source distribution are not
 strictly part of groff.  That is, they are distributed with it and are
@@ -48,6 +49,16 @@ extensively.  These multi-licensed groff components are as 
follows.
 Their file names are not always identical to those in their original
 distributions, but we have kept them similar.
 
+libgroff static library
+=======================
+
+Two files in libgroff, a utility library statically linked into most
+executables that groff provides, are licensed under the LGPLv3.  Find a
+copy of the license in the file "LGPLv3".
+
+       src/include/relocate.h
+       src/libs/libgroff/relocate.cpp
+
 grn preprocessor
 ================
 
diff --git a/MANIFEST b/MANIFEST
index 04fbc3b85..f9c67b0a1 100644
--- a/MANIFEST
+++ b/MANIFEST
@@ -18,6 +18,7 @@ This file summarizes the structure of the groff source 
distribution.
   INSTALL       Generic information on configuration and compiling.
   INSTALL.extra How to install groff from a distribution archive.
   INSTALL.REPO  How to install groff from a Git repository checkout.
+  LGPLv3        The GNU Lesser General Public License (LGPL), version 3.
   LICENSES      Copyright and licensing information.
   MANIFEST      The file you are reading.
   MORE.STUFF    Useful stuff in other packages.
diff --git a/Makefile.am b/Makefile.am
index fe15d7dc2..ef3754845 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -760,6 +760,7 @@ EXTRA_DIST += \
   HACKING \
   INSTALL.REPO \
   INSTALL.extra \
+  LGPLv3 \
   LICENSES \
   MANIFEST \
   MORE.STUFF \
diff --git a/src/include/relocate.h b/src/include/relocate.h
index 47176c91f..cdd7cbf50 100644
--- a/src/include/relocate.h
+++ b/src/include/relocate.h
@@ -1,21 +1,21 @@
 /* Provide relocation for macro and font files.
 
-   Copyright 2005-2020 Free Software Foundation, Inc.
-
-   This program is free software; you can redistribute it and/or modify
-   it under the terms of the GNU Library General Public License as
-   published by the Free Software Foundation, either version 3 of the
-   License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
-
-   You should have received a copy of the GNU Library General Public
-   License along with this program.  If not, see
-   <http://www.gnu.org/licenses/>.
-*/
+Copyright 2005-2020 Free Software Foundation, Inc.
+
+This file is part of groff, the GNU roff typesetting system.
+
+This program is free software; you can redistribute it and/or modify it
+under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation, either version 3 of the License, or (at
+your option) any later version.
+
+This program is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser
+General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 #ifdef __cplusplus
 extern char *curr_prefix;
diff --git a/src/libs/libgroff/relocate.cpp b/src/libs/libgroff/relocate.cpp
index fe6ab656c..49ac8bd53 100644
--- a/src/libs/libgroff/relocate.cpp
+++ b/src/libs/libgroff/relocate.cpp
@@ -1,18 +1,21 @@
 /* Provide relocation for macro and font files.
-   Copyright 2005-2024 Free Software Foundation, Inc.
 
-   This program is free software; you can redistribute it and/or modify it
-   under the terms of the GNU Library General Public License as published
-   by the Free Software Foundation, either version 3 of the License, or
-   (at your option) any later version.
+Copyright 2005-2024 Free Software Foundation, Inc.
 
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-   Library General Public License for more details.
+This file is part of groff, the GNU roff typesetting system.
 
-   You should have received a copy of the GNU Library General Public License
-   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+This file is free software; you can redistribute it and/or modify it
+under the terms of the GNU Lesser General Public License as published
+by the Free Software Foundation, either version 3 of the License, or
+(at your option) any later version.
+
+This file is distributed in the hope that it will be useful, but WITHOUT
+ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with this program.  If not, see <http://www.gnu.org/licenses/>. */
 
 // Made after relocation code in kpathsea and gettext.
 

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