File 0003-Fix-build-with-Boost-1.89.0.patch of Package ledger

diff -purN a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt	2023-03-30 09:40:48.000000000 +0200
+++ b/CMakeLists.txt	2025-10-11 17:08:21.251209313 +0200
@@ -90,7 +90,7 @@ endif()
 
 # Set BOOST_ROOT to help CMake to find the right Boost version
 find_package(Boost 1.49.0
-  REQUIRED date_time filesystem system iostreams regex unit_test_framework
+  REQUIRED date_time filesystem iostreams regex unit_test_framework
   ${BOOST_PYTHON} OPTIONAL_COMPONENTS nowide)
 
 # enable Boost::nowide library (for UTF8 command line args on Windows)