Windows下的Cmake Opencv for Android...找不到iostream

Question

我正在尝试为 opencv 运行 cmake_android.cmd 脚本，详见此处： http://opencv.willowgarage.com/wiki/Android2.3.0#Windows_.28native.29

所以我可以得到一个 OpenCV.mk 文件以用于 Android

所以我启动 cmd.exe 当我在opencv\android 我跑scripts\cmake_android.cmd

它达到了大约 3% 并且因为找不到 iostream 而失败

[  3%] Building CXX object 3rdparty/libtiff/CMakeFiles/libtiff.dir/tif_stream.cxx.o
C:\opencv\3rdparty\libtiff\tif_stream.cxx:31:20: error: iostream: No such file or directory

这是我的 wincfg.cmd 文件

:: variables required for OpenCV build ::
:: Note: all pathes should be specified without tailing slashes!
SET ANDROID_NDK=C:\android-ndk-r8b-windows\android-ndk-r8b
SET CMAKE_EXE=C:\Program Files (x86)\CMake 2.8\bin\cmake.exe
SET MAKE_EXE=%ANDROID_NDK%\prebuilt\windows\bin\make.exe

:: variables required for android-opencv build ::
SET ANDROID_SDK=C:\Program Files (x86)\Android\android-sdk
SET ANT_DIR=C:\opencv\android\apache-ant-1.8.4
SET JAVA_HOME=C:\Program Files\Java\jdk1.7.0_09

:: configuration options ::
:::: general ARM-V7 settings
SET ANDROID_ABI=armeabi-v7a
SET BUILD_DIR=build

:::: uncomment following lines to compile for old emulator or old device
::SET ANDROID_ABI=armeabi
::SET BUILD_DIR=build_armeabi

:::: uncomment following lines to compile for ARM-V7 with NEON support
::SET ANDROID_ABI=armeabi-v7a with NEON
::SET BUILD_DIR=build_neon

:::: uncomment following lines to compile for x86
::SET ANDROID_ABI=x86
::SET BUILD_DIR=build_x86

:::: other options
::SET ANDROID_NATIVE_API_LEVEL=8   &:: android-3 is enough for native part of OpenCV but android-8 is required for Java API

非常感谢任何帮助！

Answer 1

对于 NDK r8b，您需要来自存储库的最新 OpenCV。

OpenCV 2.4.2 版本支持从 r5 到 r8 的 NDK。来自 sourceforge 和 Google Play 的预编译 Android 二进制文件是使用 NDK r8 编译的。