diff --git a/Xalan.1 b/Xalan.1
new file mode 100644
index 0000000..28d0605
--- /dev/null
+++ b/Xalan.1
@@ -0,0 +1,52 @@
+.TH XALAN "1" "April 2024" "" "User Commands"
+.SH NAME
+.B Xalan
+\(en Transform XML documents using a stylesheet
+.SH SYNOPSIS
+.B Xalan
+.RI [ OPTIONS ]
+.I source
+.I stylesheet
+.SH DESCRIPTION
+Transform XML documents using a stylesheet
+that conforms to XSLT 1.0 standards.
+.SH OPTIONS
+A dash as the
+.I source
+argument reads from stdin.
+.RB ( \-
+cannot be used for both arguments.)
+.TP
+.B \-a
+Use xml-stylesheet PI, not the
+.I stylesheet
+argument.
+.TP
+.B \-e\ \fIencoding
+Force the specified encoding for the output.
+.TP
+.B \-i\ \fIinteger
+Indent the specified amount.
+.TP
+.B \-m
+Omit the
+.B META
+tag in HTML output.
+.TP
+.B \-o\ \fIfilename
+Write output to the specified file.
+.TP
+.B \-p\ \fIname\ expression
+Sets a stylesheet parameter.
+.TP
+.B \-t
+Display timing information.
+.TP
+.B \-u
+Disable escaping of URLs in HTML output.
+.TP
+.B \-?
+Display a help message.
+.TP
+.B \-v
+Validates source documents.
diff --git a/gcc_15_fixes.patch b/gcc_15_fixes.patch
new file mode 100644
index 0000000..0d954b0
--- /dev/null
+++ b/gcc_15_fixes.patch
@@ -0,0 +1,20 @@
+Index: xalan/src/xalanc/XMLSupport/XalanOtherEncodingWriter.hpp
+===================================================================
+--- xalan.orig/src/xalanc/XMLSupport/XalanOtherEncodingWriter.hpp	2025-10-22 08:05:45.403631397 -0400
++++ xalan/src/xalanc/XMLSupport/XalanOtherEncodingWriter.hpp	2025-10-22 08:18:14.821542155 -0400
+@@ -320,13 +320,13 @@
+                 {
+                     XalanUnicodeChar    value = decodeUTF16SurrogatePair(ch, theChars[i+1],  getMemoryManager());
+ 
+-                    if (this->m_isPresentable(value))
++                    if (m_predicate(value))
+                     {
+                         write(value);
+                     }
+                     else
+                     {
+-                        this->writeNumberedEntityReference(value);
++                        writeNumericCharacterReference(value);
+                     }
+ 
+                     ++i;
diff --git a/xalan-c-1.12-icu-75.patch b/xalan-c-1.12-icu-75.patch
new file mode 100644
index 0000000..0e27218
--- /dev/null
+++ b/xalan-c-1.12-icu-75.patch
@@ -0,0 +1,15 @@
+>= ICU 75 needs C++17, see https://bugs.gentoo.org/934471.
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -32,9 +32,9 @@ if (POLICY CMP0067)
+   cmake_policy(SET CMP0067 NEW)
+ endif(POLICY CMP0067)
+ 
+-# Try C++14, then fall back to C++11 and C++98.  Used for feature tests
++# Try C++17, then fall back to C++14, then C++11, and C++98.  Used for feature tests
+ # for optional features.
+-set(CMAKE_CXX_STANDARD 14)
++set(CMAKE_CXX_STANDARD 17)
+ 
+ # Use folders (for IDE project grouping)
+ set_property(GLOBAL PROPERTY USE_FOLDERS ON)
diff --git a/xalan-c.rpmlintrc b/xalan-c.rpmlintrc
new file mode 100644
index 0000000..19f46cf
--- /dev/null
+++ b/xalan-c.rpmlintrc
@@ -0,0 +1,10 @@
+# Not a real spelling error:
+addFilter(r" spelling-error \('([Ss]tylesheet)s?',")
+# Hardlinks within directories owned by a single package are safe.
+addFilter(r" cross-directory-hard-link /\S+/xalan-c-doc/\S+ /\S+/xalan-c-doc/")
+# All documentation is in the -doc subpackage.
+addFilter(r" no-documentation$")
+#xalan-c.x86_64: W: no-manual-page-for-binary Xalan
+#xalan-c.x86_64: W: no-documentation
+#xalan-c-devel.x86_64: W: no-documentation
+#xalan-c-doc.x86_64: E: no-binary
diff --git a/xalan-c.spec b/xalan-c.spec
index 82e6bd0..5507f12 100644
--- a/xalan-c.spec
+++ b/xalan-c.spec
@@ -1,4 +1,5 @@
-%bcond_without icu
+%bcond icu 1
+
 Name:           xalan-c
 Version:        1.12.0
 # The soversion is made from the major and minor version numbers, e.g. 112 for
@@ -10,35 +11,75 @@ Version:        1.12.0
 Release:        %autorelease
 Summary:        Xalan XSLT processor for C/C++
 
-License:        ASL 2.0
-URL:            http://xalan.apache.org/xalan-c/
-%global tag Xalan-C_%(echo '%{version}' | tr . _)
+# The entire source is Apache-2.0, except cmake/RunTest.cmake, which is
+# libtiff, but is a build-system file that does not contribute to the licenses
+# of the binary RPMs.
+License:        Apache-2.0
+SourceLicense:  %{license} AND libtiff
+URL:            https://apache.github.io/xalan-c/
+%global tag Xalan-C_%{gsub %{version} . _}
 %global tar_name xalan_c-%(echo %{version} | cut -d . -f -2)
-%global release_url https://github.com/apache/xalan-c/releases/download/%{tag}
-Source0:        %{release_url}/%{tar_name}.tar.gz
-Source1:        %{release_url}/%{tar_name}.tar.gz.asc
-Source2:        %{release_url}/KEYS
+%global forgeurl https://github.com/apache/xalan-c/
+%global releaseurl %{forgeurl}/releases/download/%{tag}
+Source0:        %{releaseurl}/%{tar_name}.tar.gz
+Source1:        %{releaseurl}/%{tar_name}.tar.gz.asc
+Source2:        %{releaseurl}/KEYS
+# Man page hand-written for Fedora in groff_man(7) format based on Xalan -?
+Source3:        Xalan.1
+
+# ICU 75 needs C++17
+# https://bugs.gentoo.org/934471
+#
+# Fixes:
+#
+# [FTBFS] with icu-76.1
+# https://bugzilla.redhat.com/show_bug.cgi?id=2332317
+#
+# Note that this patch is too trivial for there to be any need to associate a
+# license with it; the patch merely adjusts the value of CMAKE_CXX_STANDARD
+# from 14 to 17.
+Patch:          https://gitweb.gentoo.org/repo/gentoo.git/plain/dev-libs/xalan-c/files/xalan-c-1.12-icu-75.patch
+
+Patch: gcc_15_fixes.patch
 
 BuildRequires:  gnupg2
 BuildRequires:  cmake
 # Either make or ninja is supported.
 BuildRequires:  ninja-build
 BuildRequires:  gcc-c++
+
+BuildRequires:  dos2unix
+BuildRequires:  hardlink
+
 BuildRequires:  xerces-c-devel
 %if %{with icu}
 BuildRequires:  libicu-devel
 %endif
 
-%description
+Requires:       xalan-c-libs%{?_isa} = %{version}-%{release}
+
+%global common_description %{expand:
 The Apache Xalan-C++ Project provides a library and a command line program to
 transform XML documents using a stylesheet that conforms to XSLT 1.0 standards.
 
-Xalan is a project of the Apache Software Foundation.
+Xalan is a project of the Apache Software Foundation.}
+
+%description %{common_description}
+
+This package contains the command-line tool.
+
+
+%package        libs
+Summary:        Shared libraries for xalan-c
+
+%description libs
+The xalan-c-libs package contains libraries needed by the command-line tool and
+by applications that use xalan-c.
 
 
 %package        devel
 Summary:        Development files for xalan-c
-Requires:       xalan-c%{?_isa} = %{version}-%{release}
+Requires:       xalan-c-libs%{?_isa} = %{version}-%{release}
 
 %description devel
 The xalan-c-devel package contains libraries and header files for developing
@@ -55,6 +96,7 @@ Summary:        Documentation for xalan-c
 # Normally, we would enable the Doxygen PDF documentation as a lesser
 # substitute, but building it fails with:
 #   ! TeX capacity exceeded, sorry [pool size=5905151].
+BuildArch:      noarch
 
 %description doc
 Documentation for xalan-c. See https://apache.github.io/xalan-c/ for full HTML
@@ -64,7 +106,7 @@ documentation.
 %prep
 %{gpgverify} --keyring='%{SOURCE2}' --signature='%{SOURCE1}' --data='%{SOURCE0}'
 
-%autosetup -n %{tar_name}
+%autosetup -n %{tar_name} -p 1
 
 # https://github.com/apache/xalan-c/pull/35
 chmod -v a-x NOTICE
@@ -75,9 +117,19 @@ chmod -v a-x NOTICE
 # samples are only tested and not installed), and is annoying to exclude.
 rm -vf samples/configure samples/configure.in
 
+# Convert line endings as needed:
+find docs samples src -type f -exec file '{}' '+' |
+  grep -F 'CRLF' |
+  awk -F ':' '{ print $1 }' |
+  xargs dos2unix --keepdate
+
+
+%conf
+export CMAKE_POLICY_VERSION_MINIMUM=3.5
+%cmake %{?with_icu:-Dtranscoder=icu} -GNinja
+
 
 %build
-%cmake %{?with_icu:-Dtranscoder=icu} -GNinja
 %cmake_build
 
 
@@ -89,42 +141,47 @@ rm -vf samples/configure samples/configure.in
 # the HTML version of the API documentation.
 rm -rf %{buildroot}%{_prefix}/share/doc/xalan-c/api
 
+install -t '%{buildroot}%{_docdir}/%{name}-doc' -D -p -m 0644 \
+    README.md docs/*.md
+cp -rvp docs/images/ samples/ '%{buildroot}%{_docdir}/%{name}-doc'
+hardlink -c -v '%{buildroot}%{_docdir}/%{name}-doc'
+
+install -t '%{buildroot}%{_mandir}/man1' -D -p -m 0644 '%{SOURCE3}'
+
 
 %check
 %ctest
 
 
 %files
-%license LICENSE
-%doc CREDITS
-%doc KEYS
-%doc NOTICE
-%doc README.md
 %{_bindir}/Xalan
-%{_libdir}/libxalanMsg.so.%{so_version}
-%{_libdir}/libxalanMsg.so.%{so_version}.*
-%{_libdir}/libxalan-c.so.%{so_version}
-%{_libdir}/libxalan-c.so.%{so_version}.*
+%{_mandir}/man1/Xalan.1*
+
+
+%files libs
+%license CREDITS LICENSE NOTICE
+
+%{_libdir}/libxalanMsg.so.%{so_version}{,.*}
+%{_libdir}/libxalan-c.so.%{so_version}{,.*}
 
 
 %files devel
 %{_libdir}/libxalanMsg.so
 %{_libdir}/libxalan-c.so
+
 %{_includedir}/xalanc/
+
 %dir %{_libdir}/cmake/XalanC
 %{_libdir}/cmake/XalanC/*.cmake
+
 %dir %{_libdir}/pkgconfig
 %{_libdir}/pkgconfig/xalan-c.pc
 
 
 %files doc
-%license LICENSE
-%doc CREDITS
-%doc KEYS
-%doc NOTICE
-%doc README.md
-%doc docs/*.md docs/images
-%doc samples
+%license CREDITS LICENSE NOTICE
+
+%{_docdir}/%{name}-doc/
 
 
 %changelog