Building and using icu

To use icu code, define UCONFIG_USE_LOCAL and add 3 include search paths:

$(OMIM_ROOT)/3party/icu
$(OMIM_ROOT)/3party/icu/icu/icu4c/source/common
$(OMIM_ROOT)/3party/icu/icu/icu4c/source/i18n

Only necessary sources are included for bidi and transliteration. Please add other sources if you need more functionality.

How to build and update icudtXXl.dat file

After updating ICU submodule, please also update the data/icudtXXl.dat file (XX is an ICU version).

bash

mkdir build && cd build
ICU_DATA_FILTER_FILE=../icu_filter.json ../icu/icu4c/source/./configure --disable-shared --enable-static --disable-renaming --disable-extras --disable-icuio --disable-tests --disable-samples --with-data-packaging=archive
make -j$(nproc)
cp data/out/icudt??l.dat ../../../data/

Don't forget to delete an old .dat file in the $(OMIM_ROOT)/data and update symlink in android/assets/ and all references in the code:

indexer/transliteration_loader.cpp
16:  char const kICUDataFile[] = "icudt69l.dat";

android/script/replace_links.bat
42:cp -r ../data/icudt69l.dat assets/

iphone/Maps/Maps.xcodeproj/project.pbxproj
453:		BB7626B61E85599C0031D71C /* icudt69l.dat in Resources */ = {isa = PBXBuildFile; fileRef = BB7626B41E8559980031D71C /* icudt69l.dat */; };
1316:		BB7626B41E8559980031D71C /* icudt69l.dat */ = {isa = PBXFileReference; lastKnownFileType = file; name = icudt69l.dat; path = ../../data/icudt69l.dat; sourceTree = "<group>"; };
3557:				BB7626B41E8559980031D71C /* icudt69l.dat */,
3841:				BB7626B61E85599C0031D71C /* icudt69l.dat in Resources */,

qt/CMakeLists.txt
132:  icudt69l.dat