--- gnucash-5.9/libgnucash/engine/CMakeLists.txt.orig	2024-11-24 16:03:34.430747300 +0100
+++ gnucash-5.9/libgnucash/engine/CMakeLists.txt	2024-11-24 16:08:45.978821800 +0100
@@ -136,6 +136,8 @@ add_custom_command (
     )
 add_custom_target(iso-4217-c DEPENDS ${ISO_4217_C})
 
+find_package(ICU REQUIRED COMPONENTS uc i18n)
+
 set (engine_SOURCES
   Account.cpp
   Recurrence.cpp
@@ -237,7 +239,8 @@ target_link_libraries(gnc-engine
     gnc-core-utils
     ${Boost_DATE_TIME_LIBRARY}
     ${Boost_REGEX_LIBRARY}
-    ${ICU4C_I18N_LDFLAGS}
+    ICU::uc
+    ICU::i18n
     ${REGEX_LDFLAGS}
     ${GMODULE_LDFLAGS}
     PkgConfig::GLIB2