在过去的几天里，我一直在努力弄清楚如何为Android支持实施ICU库。 我坚持不懈，试图用NDK编译ICU源。 我从这里得到它们： https ： //android.googlesource.com/platform/external/icu/

我把它放在我的jni位置并在我的Android.mk文件中添加了这一行：include $(call all-subdir-makefiles)

并添加到本地标志：

-DSQLITE_ENABLE_ICU

我在尝试构建它时遇到了很多错误(在Windows机器上)。 这是我的输出：

c:/ndk/build/core/build-binary.mk:457: warning: overriding commands for target ` "----my android project location----"//obj/local/armeabi/objs/icui1 8n/smpdtfst.o' c:/ndk/build/core/build-binary.mk:457: warning: ignoring old commands for target `"----my android project location----"//obj/local/armeabi/objs/icu i18n/smpdtfst.o' c:/ndk/build/core/build-binary.mk:457: warning: overriding commands for target ` "----my android project location----"//obj/local/armeabi/objs/icui1 8n_static/smpdtfst.o' c:/ndk/build/core/build-binary.mk:457: warning: ignoring old commands for target `"----my android project location----"//obj/local/armeabi/objs/icu i18n_static/smpdtfst.o' [armeabi] Compile thumb : icui18n <= decContext.c [armeabi] Compile thumb : icui18n <= ucln_in.c [armeabi] Compile thumb : icui18n <= ulocdata.c [armeabi] Compile++ thumb: icui18n <= indiancal.cpp [armeabi] Compile++ thumb: icui18n <= dtptngen.cpp [armeabi] Compile thumb : icui18n <= decNumber.c [armeabi] Compile thumb : icui18n <= utmscale.c [armeabi] Compile++ thumb: icui18n <= dtrule.cpp In file included from "----my android project location----"//jni/ic u/icu4c/source/i18n/../common/unicode/unistr.h:31:0, from "----my android project location----"//jni/ic u/icu4c/source/i18n/../common/unicode/locid.h:34, from "----my android project location----"//jni/ic u/icu4c/source/i18n/unicode/calendar.h:37, from "----my android project location----"//jni/ic u/icu4c/source/i18n/indiancal.h:18, from "----my android project location----"//jni/ic u/icu4c/source/i18n/indiancal.cpp:10: "----my android project location----"//jni/icu/icu4c/source/i18n/.. /common/unicode/std_string.h:33:18: fatal error: string: No such file or directo ry #include ^ compilation terminated. make.exe: *** ["----my android project location----"//obj/local/arm eabi/objs/icui18n/indiancal.o] Error 1 make.exe: *** Waiting for unfinished jobs.... In file included from "----my android project location----"//jni/ic u/icu4c/source/i18n/../common/unicode/unistr.h:31:0, from "----my android project location----"//jni/ic u/icu4c/source/i18n/../common/unicode/strenum.h:14, from "----my android project location----"//jni/ic u/icu4c/source/i18n/../common/unicode/uenum.h:24, from "----my android project location----"//jni/ic u/icu4c/source/i18n/unicode/ucal.h:12, from "----my android project location----"//jni/ic u/icu4c/source/i18n/unicode/udat.h:16, from "----my android project location----"//jni/ic u/icu4c/source/i18n/unicode/datefmt.h:26, from "----my android project location----"//jni/ic u/icu4c/source/i18n/dtptngen.cpp:15: "----my android project location----"//jni/icu/icu4c/source/i18n/.. /common/unicode/std_string.h:33:18: fatal error: string: No such file or directo ry #include ^ compilation terminated. make.exe: *** ["----my android project location----"//obj/local/arm eabi/objs/icui18n/dtptngen.o] Error 1 "----my android project location----"//jni/icu/icu4c/source/i18n/dt rule.cpp: In member function 'UBool icu_54::DateTimeRule::operator==(const icu_5 4::DateTimeRule&) const': "----my android project location----"//jni/icu/icu4c/source/i18n/dt rule.cpp:85:22: error: cannot use typeid with -fno-rtti (typeid(*this) == typeid(that) && ^ "----my android project location----"//jni/icu/icu4c/source/i18n/dt rule.cpp:85:38: error: cannot use typeid with -fno-rtti (typeid(*this) == typeid(that) && ^ make.exe: *** ["----my android project location----"//obj/local/arm eabi/objs/icui18n/dtrule.o] Error 1

这是我在jni目录中的主要Android.mk文件：

LOCAL_PATH:= $(call my-dir) include $(call all-subdir-makefiles) include $(CLEAR_VARS) LOCAL_MODULE:= sqlitenative LOCAL_SRC_FILES := sqlite3.c sqlite3_native.cpp # NOTE the following flags, # SQLITE_TEMP_STORE=3 causes all TEMP files to go into RAM. and thats the behavior we want # SQLITE_ENABLE_FTS3 enables usage of FTS3 - NOT FTS1 or 2. # SQLITE_DEFAULT_AUTOVACUUM=1 causes the databases to be subject to auto- vacuum # SQLITE_HAS_CODEC enables crypto support for database LOCAL_CFLAGS += -DHAVE_USLEEP=1 \ -DSQLITE_DEFAULT_JOURNAL_SIZE_LIMIT=1048576 \ -DSQLITE_THREADSAFE=1 \ -DNDEBUG=1 \ -DSQLITE_ENABLE_MEMORY_MANAGEMENT=1 \ -DSQLITE_DEFAULT_AUTOVACUUM=1 \ -DSQLITE_TEMP_STORE=3 \ -DSQLITE_ENABLE_FTS3 \ -DSQLITE_ENABLE_FTS3_PARENTHESIS \ -DSQLITE_ENABLE_COLUMN_METADATA \ -DSQLITE_ENABLE_ICU \ -DHAVE_STRCHRNUL=0 LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -llog -lc LOCAL_C_INCLUDES += $(call include-path-for, system-core)/cutils LOCAL_SHARED_LIBRARIES += libicuuc \ libicui18n \ libutils LOCAL_SHARED_LIBRARIES += libicuuc-host libicui18n-host LOCAL_STATIC_LIBRARIES := liblog libutils libcutils include $(BUILD_SHARED_LIBRARY) include $(BUILD_HOST_SHARED_LIBRARY)