android cmake icu4c

CMakeLists.txt

cmake_minimum_required(VERSION 3.6)
set( CPP_DIR ${CMAKE_CURRENT_SOURCE_DIR}/src/main/cpp )

file( GLOB ICUUC_SRC ${CPP_DIR}/icu/source/common/*.cpp )
file( GLOB ICUI18N_SRC ${CPP_DIR}/icu/source/i18n/*.cpp )
add_library(icu SHARED
    ${ICUUC_SRC}
    ${ICUI18N_SRC}
    ${CPP_DIR}/icu/source/stubdata/stubdata.cpp
)
target_include_directories( icu PRIVATE
    ${CPP_DIR}/icu/sources/common
    ${CPP_DIR}/icu/sources/i18n
    )

target_compile_definitions( icu PRIVATE
    -DU_COMMON_IMPLEMENTATION
    -DU_I18N_IMPLEMENTATION
    -D__STDC_INT64__
    )
target_compile_options( icu PRIVATE
    -O3 -Os -fno-exceptions -fno-short-wchar -fno-short-enums -frtti
)

# NOTE: suppose icu4c sources downloaded to CPP_DIR

include_directories (
    ${CPP_DIR}
    ${CPP_DIR}/icu/source/common/unicode
    ${CPP_DIR}/icu/source/i18n/unicode
)

file( GLOB JNI_SRC
    ${CPP_DIR}/*.cpp
    )

add_library( hello-jni
    SHARED
    ${JNI_SRC}
)

find_library (log-lib log)

target_link_libraries( hello-jni icu ${log-lib} )