5 files changed, 22 insertions, 53 deletions
diff --git a/indra/cmake/CMakeLists.txt b/indra/cmake/CMakeLists.txt
index f0b35c08f3..286ef3d411 100644
--- a/indra/cmake/CMakeLists.txt
+++ b/indra/cmake/CMakeLists.txt
@@ -30,6 +30,7 @@ set(cmake_SOURCE_FILES
         GoogleMock.cmake
         Havok.cmake
         Hunspell.cmake
+        ICU4C.cmake
         JsonCpp.cmake
         LLAddBuildTest.cmake
         LLAppearance.cmake
diff --git a/indra/cmake/FindICU4C.cmake b/indra/cmake/FindICU4C.cmake
deleted file mode 100644
index 327d761a88..0000000000
--- a/indra/cmake/FindICU4C.cmake
+++ /dev/null
@@ -1,33 +0,0 @@
-# -*- cmake -*-
-
-# - Find ICU4C
-# This module defines
-#  ICU4C_INCLUDE_DIR, where to find headers
-#  ICU4C_LIBRARY, the library needed to use ICU4C.
-#  ICU4C_FOUND, If false, do not try to use ICU4C.
-
-find_path(ICU4C_INCLUDE_DIR uchar.h
-  PATH_SUFFIXES unicode
-  )
-
-set(ICU4C_NAMES ${ICU4C_NAMES} icuuc)
-find_library(ICU4C_LIBRARY
-  NAMES ${ICU4C_NAMES}
-  )
-
-if (ICU4C_LIBRARY AND ICU4C_INCLUDE_DIR)
-  set(ICU4C_FOUND "YES")
-else (ICU4C_LIBRARY AND ICU4C_INCLUDE_DIR)
-  set(ICU4C_FOUND "NO")
-endif (ICU4C_LIBRARY AND ICU4C_INCLUDE_DIR)
-
-if (ICU4C_FOUND)
-    message(STATUS "Found ICU4C: Library in '${ICU4C_LIBRARY}' and header in '${ICU4C_INCLUDE_DIR}' ")
-else (ICU4C_FOUND)
-    message(FATAL_ERROR " * * *\nCould not find ICU4C library! * * *")
-endif (ICU4C_FOUND)
-
-mark_as_advanced(
-  ICU4C_LIBRARY
-  ICU4C_INCLUDE_DIR
-  )
diff --git a/indra/cmake/ICU4C.cmake b/indra/cmake/ICU4C.cmake
index b51087e0e7..7b27665483 100644
--- a/indra/cmake/ICU4C.cmake
+++ b/indra/cmake/ICU4C.cmake
@@ -1,22 +1,23 @@
 # -*- cmake -*-
 include(Prebuilt)
 
-set(ICU4C_FIND_QUIETLY ON)
-set(ICU4C_FIND_REQUIRED ON)
+include_guard()
 
-if (USESYSTEMLIBS)
-  include(FindICU4C)
-else (USESYSTEMLIBS)
-  use_prebuilt_binary(icu4c)
-  if (WINDOWS)
-    set(ICU4C_LIBRARY icuuc)
-  elseif(DARWIN)
-    set(ICU4C_LIBRARY icuuc)
-  #elseif(LINUX)
-  #  set(ICU4C_LIBRARY ...)
-  else()
-    message(FATAL_ERROR "Invalid platform")
-  endif()
-  set(ICU4C_INCLUDE_DIRS ${LIBS_PREBUILT_DIR}/include/unicode)
-  use_prebuilt_binary(dictionaries)
-endif (USESYSTEMLIBS)
+add_library( ll::icu4c INTERFACE IMPORTED )
+
+
+use_system_binary(icu4c)
+use_prebuilt_binary(icu4c)
+if (WINDOWS)
+  target_link_libraries( ll::icu4c INTERFACE  icuuc)
+elseif(DARWIN)
+  target_link_libraries( ll::icu4c INTERFACE  icuuc)
+#elseif(LINUX)
+##  target_link_libraries( ll::icu4c INTERFACE  )
+else()
+  message(FATAL_ERROR "Invalid platform")
+endif()
+
+target_include_directories( ll::icu4c SYSTEM INTERFACE  ${LIBS_PREBUILT_DIR}/include/unicode )
+
+use_prebuilt_binary(dictionaries)
diff --git a/indra/llcommon/CMakeLists.txt b/indra/llcommon/CMakeLists.txt
index 620b2c636c..0dcdf7f7cd 100644
--- a/indra/llcommon/CMakeLists.txt
+++ b/indra/llcommon/CMakeLists.txt
@@ -265,7 +265,6 @@ add_library (llcommon ${llcommon_SOURCE_FILES})
 
 target_link_libraries(
         llcommon
-        ${ICU4C_LIBRARY}
         ll::apr
         ll::expat
         ll::jsoncpp
@@ -274,6 +273,7 @@ target_link_libraries(
         ll::uriparser
         ll::oslibraries
         ll::tracy
+        ll::icu4c
     )
 
 target_include_directories(llcommon INTERFACE ${CMAKE_CURRENT_SOURCE_DIR})
diff --git a/indra/newview/CMakeLists.txt b/indra/newview/CMakeLists.txt
index b63100fc2b..f3c601dff5 100644
--- a/indra/newview/CMakeLists.txt
+++ b/indra/newview/CMakeLists.txt
@@ -1897,7 +1897,7 @@ target_link_libraries(${VIEWER_BINARY_NAME}
         ${LLPHYSICSEXTENSIONS_LIBRARIES}
         ll::bugsplat
         ll::tracy
-         ${ICU4C_LIBRARY}
+        ll::icu4u
         )
 
 if( TARGET ll::intel_memops )