ICU库的Andr​​oid NDK [英] ICU library in Android NDK

问题描述

我想创建一个C库，它依赖于ICU库JNI封装（libicuuc.so和libicui18n.so）。

I am trying to create a JNI wrapper for a C library that depends on the ICU libraries (libicuuc.so and libicui18n.so).

我想在我的NDK ICU4C建设（标准和CrystaX版本，在Mac OS X的计算机上），并一直运行到链接问题是这样的：

I tried building ICU4C in my NDK (both standard and CrystaX versions, on a Mac OS X machine) and kept running into linking issues like this:

/Users/kyip/KyVmShared/KyAndroid/myproject/obj/local/armeabi/objs/icuuc/udata.o: In function `openCommonData':
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/udata.c:836: undefined reference to `icudt42_dat'
/Users/kyip/KyVmShared/KyAndroid/myproject/obj/local/armeabi/objs/icuuc/ustr_wcs.o: In function `_strFromWCS':
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:365: undefined reference to `wcstombs'
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:415: undefined reference to `wcstombs'
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:314: undefined reference to `wcstombs'
/Users/kyip/KyVmShared/KyAndroid/myproject/obj/local/armeabi/objs/icuuc/ustr_wcs.o: In function `_strToWCS':
/Users/kyip/KyVmShared/KyAndroid/myproject/jni/icu4c/common/ustr_wcs.c:164: undefined reference to `mbstowcs'
collect2: ld returned 1 exit status

我也试过在 UNI $ C在android系统$ C给予支持的建议NDK 但没有运气。我被困在：

I also tried the suggestion given at unicode support in android ndk but no luck. I got stuck at:

arm-eabi-g++ -I/ky/crystax/android-ndk-r4-crystax/build/platforms/android-8/arch-arm/usr/include/ -O3 -fno-short-wchar -DU_USING_ICU_NAMESPACE=0 -DU_GNUC_UTF16_STRING=0 -fno-short-enums -nostdlib -fPIC -DU_COMMON_IMPLEMENTATION  -D_REENTRANT -I../common -I../../icu/source/common -I../../icu/source/i18n   "-DDEFAULT_ICU_PLUGINS=\"/usr/local/lib/icu\" "  -DU_COMMON_IMPLEMENTATION -DHAVE_CONFIG_H  -I/ky/crystax/android-ndk-r4-crystax/build/platforms/android-8/arch-arm/usr/include/ -O3 -fno-short-wchar -DU_USING_ICU_NAMESPACE=0 -DU_GNUC_UTF16_STRING=0 -fno-short-enums -nostdlib -fPIC -DU_COMMON_IMPLEMENTATION  -std=c++0x  -fvisibility=hidden -c   -o errorcode.ao ../../icu/source/common/errorcode.cpp
In file included from ../../icu/source/common/unicode/ptypes.h:23,
                 from ../../icu/source/common/unicode/umachine.h:52,
                 from ../../icu/source/common/unicode/utypes.h:36,
                 from ../../icu/source/common/errorcode.cpp:17:
/ky/crystax/android-ndk-r4-crystax/build/platforms/android-8/arch-arm/usr/include/sys/types.h:122: error: 'uint64_t' does not name a type
make[1]: *** [errorcode.ao] Error 1
make: *** [all-recursive] Error 2

任何帮助将是AP preciated。

Any help would be appreciated.

推荐答案

这里是我解决了这个问题。这是肮脏的，但它的工作原理。的lib得到了编译：

Here is how i solved the problem. It is dirty but it works. The lib got compiled:

注释掉＃如果U_HAVE_WCHAR_H 和相应的 #ENDIF 所以＆LT; wchar.h方式＆gt; 总是包含

comment out the #if U_HAVE_WCHAR_H and the respective #endif so the <wchar.h> is always included.

与替换previous uprv_wcstombs 定义：

replace the previous uprv_wcstombs definition with:

#define uprv_wcstombs(mbstr, wcstr, count) U_STANDARD_CPP_NAMESPACE wcs2mbs(mbstr, wcstr, count)

与替换previous uprv_mbstowcs 定义：

#define uprv_mbstowcs(wcstr, mbstr, count) U_STANDARD_CPP_NAMESPACE mbs2wcs(wcstr, mbstr, count)

2。文件：/icu4c/common/ustr_wcs.cpp

某处上方，下已有包括添加一行：

2. file: /icu4c/common/ustr_wcs.cpp

somewhere at the top, under the already existing includes add the line:

#include "../wcsmbs.h"

3。创建新的文件ICU4C / wcsmbs.h

size_t mbs2wcs(wchar_t * __ restrict pwcs, const char * __ restrict s, size_t n)
{

   mbstate_t mbs;
   const char *sp;
   memset(&mbs, 0, sizeof(mbs));
   sp=s;
   return (mbsrtowcs(pwcs,&sp,n,&mbs));
}


size_t wcs2mbs(char * __restrict s, const wchar_t * __restrict pwcs, size_t n)
{
   mbstate_t mbs;
   const wchar_t *pwcsp;
   memset(&mbs,0,sizeof(mbs));
   pwcsp = pwcs;
   return (wcsrtombs(s,&pwcsp,n,&mbs));
}

希望它帮助。

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