Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild

Patch taken from the Debian project.

Signed-off-by: Marcin Juszkiewicz <mjuszkiewicz@redhat.com>

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;

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)

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
@@ -16,7 +17,7 @@ Summary:        Xalan XSLT processor for C/C++
 License:        Apache-2.0
 SourceLicense:  %{license} AND libtiff
 URL:            https://apache.github.io/xalan-c/
-%global tag Xalan-C_%(echo '%{version}' | tr . _)
+%global tag Xalan-C_%{gsub %{version} . _}
 %global tar_name xalan_c-%(echo %{version} | cut -d . -f -2)
 %global forgeurl https://github.com/apache/xalan-c/
 %global releaseurl %{forgeurl}/releases/download/%{tag}
@@ -26,6 +27,21 @@ 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.
@@ -90,7 +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
@@ -108,8 +124,12 @@ find docs samples src -type f -exec file '{}' '+' |
   xargs dos2unix --keepdate
 
 
-%build
+%conf
+export CMAKE_POLICY_VERSION_MINIMUM=3.5
 %cmake %{?with_icu:-Dtranscoder=icu} -GNinja
+
+
+%build
 %cmake_build