Android NDK编译带STL的 C/C++ 程序

我的这个C/C++程序， 可以成功的交叉编译到中兴，烽火的机顶盒上运行， 原以为编译到android应该也是一件简单的事情， 但是做起来远比我想象的复杂得多。

我的程序中有 .C 文件 和 .CPP 文件 ， 其中 .CPP 文件中用到了 STL的string， 编译成功后死活链接不到std::string库，提示报错 undefined reference to `std::basic_string 。

折腾了两天准备用NDK来 编译 stlport库， 但是以失败告终，报错如下：

[root@localhost jni]# /home/android-ndk-r6b/ndk-build
Compile++ thumb : stlport_shared <= dll_main.cpp
In file included from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl/_stdexcept_base.h:25,
from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl/_ios_base.h:22,
from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl/_ios.h:23,
from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl/_ostream.h:24,
from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl/_string_io.h:23,
from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/string:37,
from /home/android-ndk-r6b/samples/STLport-5.2.1/jni/src/dll_main.cpp:49:
/home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl/_exception.h:56:34: error: exception: No such file or directory

编译stlport的Android.mk文件内容如下所列， 不知道为何会报上面的错误， 没有找到解决办法， 如果哪位大侠找到原因， 成功编译了stlport， 还望多多指点为谢。

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)

libstlport_path := $(call my-dir)

libstlport_src_files := \
        src/dll_main.cpp \
        src/fstream.cpp \
        src/strstream.cpp \
        src/sstream.cpp \
        src/ios.cpp \
        src/stdio_streambuf.cpp \
        src/istream.cpp \
        src/ostream.cpp \
        src/iostream.cpp \
        src/codecvt.cpp \
        src/collate.cpp \
        src/ctype.cpp \
        src/monetary.cpp \
        src/num_get.cpp \
        src/num_put.cpp \
        src/num_get_float.cpp \
        src/num_put_float.cpp \
        src/numpunct.cpp \
        src/time_facets.cpp \
        src/messages.cpp \
        src/locale.cpp \
        src/locale_impl.cpp \
        src/locale_catalog.cpp \
        src/facets_byname.cpp \
        src/complex.cpp \
        src/complex_io.cpp \
        src/complex_trig.cpp \
        src/string.cpp \
        src/bitset.cpp \
        src/allocators.cpp \
        src/c_locale.c \
        src/cxa.c \

libstlport_cflags := -D_GNU_SOURCE
libstlport_cppflags := -fuse-cxa-atexit
libstlport_c_includes := $(libstlport_path) \
        $(libstlport_path)/stlport /home/android-ndk-r6b/samples/STLport-5.2.1/jni \
        /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport \
        /home/android-ndk-r6b/samples/STLport-5.2.1/jni/stlport/stl


LOCAL_MODULE := stlport_static
LOCAL_SRC_FILES := $(libstlport_src_files)
LOCAL_CFLAGS := $(libstlport_cflags)
LOCAL_CPPFLAGS := $(libstlport_cppflags)
LOCAL_C_INCLUDES := $(libstlport_c_includes)
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_C_INCLUDES)
include $(BUILD_STATIC_LIBRARY)

include $(CLEAR_VARS)
LOCAL_MODULE := stlport_shared
LOCAL_SRC_FILES := $(libstlport_src_files)
LOCAL_CFLAGS := $(libstlport_cflags)
LOCAL_CPPFLAGS := $(libstlport_cppflags)
LOCAL_C_INCLUDES := $(libstlport_c_includes)
LOCAL_EXPORT_C_INCLUDES := $(LOCAL_C_INCLUDES)
include $(BUILD_SHARED_LIBRARY)

stlport编译失败， 只能在另外想办法了， 最后终于找到了问题所在， 把 .C 文件后缀修改为 .CPP后 问题得到解决。

我应用程序的 Android.mk文件如下 ：

LOCAL_PATH := $(call my-dir)

include $(CLEAR_VARS)
LOCAL_MODULE := cloudstore_MTD
LOCAL_SRC_FILES := debug.cpp hash.cpp listex.cpp md5.cpp main.cpp http_fetcher.cpp spthreadpool.cpp storex.cpp markup.cpp 
fusex.cpp

LOCAL_C_INCLUDES := /home/android-ndk-r6b/samples/fuse-android/jni/include \
        /home/android-ndk-r6b/samples/sqlite-android/jni
#       /home/android-ndk-r6b/platforms/android-9/arch-arm/usr/include \
#       /home/android-ndk-r6b/sources/cxx-stl/gnu-libstdc++/include \
#       /home/android-ndk-r6b/samples/fuse-android/jni/include $(INCDIR)

LOCAL_CFLAGS := -Wall -lulockmgr -pipe -D_FILE_OFFSET_BITS=64 -D_DEBUG -DANDROID_SDK -DUSE_OPEN -DUSE_THREAD -DDEBUG -O2

INCLIB := /home/android-ndk-r6b/samples

LOCAL_LDLIBS := $(INCLIB)/fuse-android/obj/local/armeabi/libfuse.a \
        $(INCLIB)/libiconv/obj/local/armeabi/libiconv.a \
        $(INCLIB)/sqlite-android/obj/local/armeabi/libsqlite3.a

include $(BUILD_EXECUTABLE)

我应用程序用到了STL，所以还得需要一个 Application.mk 文件， 内容如下 ：

APP_CFLAGS += -fexceptions
APP_STL := gnustl_static

另外， 由于我的应用程序还需要用到 libiconv.a这个库， 但是android并没有这方面的支持， 所以我下载了libiconv的源码来通过NDK编译。

编译libiconv的 Android.mk文件内容如下：

LOCAL_PATH:= $(call my-dir)

# first lib, which will be built statically

include $(CLEAR_VARS)

LOCAL_MODULE := iconv
LOCAL_SRC_FILES := libcharset/lib/localcharset.c lib/iconv.c lib/relocatable.c

LOCAL_C_INCLUDES := include lib libcharset/include

LOCAL_CFLAGS := -Wno-multichar -D_ANDROID -DLIBDIR="c" -DBUILDING_LIBICONV -DIN_LIBRARY
#LOCAL_PRELINK_MODULE := false
include $(BUILD_STATIC_LIBRARY)

编译libiconv的Application.mk文件内容如下：

APP_MODULES := libiconv

至此， 应用程序编译完毕， 下来在Android平台上慢慢调试吧， 希望不要有问题。