diff --git a/gcc_15_fixes.patch b/gcc_15_fixes.patch
deleted file mode 100644
index 0d954b0..0000000
--- a/gcc_15_fixes.patch
+++ /dev/null
@@ -1,20 +0,0 @@
-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
deleted file mode 100644
index 0e27218..0000000
--- a/xalan-c-1.12-icu-75.patch
+++ /dev/null
@@ -1,15 +0,0 @@
->= 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.spec b/xalan-c.spec
index 5507f12..f37370d 100644
--- a/xalan-c.spec
+++ b/xalan-c.spec
@@ -15,7 +15,6 @@ Summary:        Xalan XSLT processor for C/C++
 # 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)
@@ -27,21 +26,6 @@ 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.
@@ -106,7 +90,7 @@ documentation.
 %prep
 %{gpgverify} --keyring='%{SOURCE2}' --signature='%{SOURCE1}' --data='%{SOURCE0}'
 
-%autosetup -n %{tar_name} -p 1
+%autosetup -n %{tar_name}
 
 # https://github.com/apache/xalan-c/pull/35
 chmod -v a-x NOTICE
@@ -124,12 +108,8 @@ find docs samples src -type f -exec file '{}' '+' |
   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