Question

我正在尝试使用android ndk r5编译tesseract for android，tesseract的代码是通过签出http://code.google.com/p/tesseract-android-tools/获得的，我无法编译tesseract并得到错误，

Install        : libjpeg.so => libs/armeabi/libjpeg.so
make: *** No rule to make target `//cygdrive/e/DemoExamples_WorkSpace/tesseract-android-tools/jni/../external/leptonlib-1.66/src/adaptmap.c', needed b
y `/cygdrive/e/DemoExamples_WorkSpace/tesseract-android-tools/obj/local/armeabi/objs/lept//cygdrive/e/DemoExamples_WorkSpace/tesseract-android-tools/j
ni/../external/leptonlib-1.66/src/adaptmap.o'.  Stop.

请帮我解决这个问题。

Answer 1

我遇到了同样的问题，我想我已经解决了。对于那些得到类似错误的人可能会有所帮助：

在OSX上，我只是通过提供如下的绝对路径来更改Android.mk文件

首先： jni / Android.mk

TESSERACT_PATH := /Users/.../tesseract-android-tools/tesseract-android-tools/external/tesseract-3.00
LEPTONICA_PATH := /Users/.../tesseract-android-tools/tesseract-android-tools/external/leptonlib-1.66
LIBJPEG_PATH := /Users/.../tesseract-android-tools/tesseract-android-tools/external/libjpeg

然后： jni / com_googlecode_leptonica_android / Android.mk

REAL_LOCAL_PATH := /Users/.../tesseract-android-tools/tesseract-android-tools/jni/com_googlecode_leptonica_android

和 jni / com_googlecode_tesseract_android / Android.mk 。

我认为问题是由以下命令返回的相对路径引起的：

$(call my-dir)

然后我需要以超级用户身份运行 ndk-build ，所有编译都很好。

Answer 2

在makefile中搜索adaptmap。构建首先创建此模块的makefile。

Answer 3

所以，我已经在windows 7和windows xp中编译了，但这是一个丑陋的解决方法。

基本问题是“LOCAL_PATH：=”，空白值，我不知道为什么cygwin有这个问题，所以你必须改变Android.mk文件的路径才能工作。

我将使用数字来引用Android.mk，我的jni路径是：

-jni
    Android.mk(1)
    Aplication.Mk
    -com_googlecode_tesseract_android(dir)
        Android.mk(2)
                tesseract(dir) 
    -com_googlecode_leptonica_android(dir)
        Android.mk(3)
                leptonlib(dir)
    -libjpeg
        Android.mk(4)

=================================

Android.mk(1)
Put tesseract and leptonica sources on googlecode subdirectories like this:

TESSERACT_PATH := $(call my-dir)/com_googlecode_tesseract_android/tesseract -- directory to source, change for respective name
LEPTONICA_PATH := $(call my-dir)/com_googlecode_leptonica_android/leptonlib -- directory to source, change for respective name
LIBJPEG_PATH := $(call my-dir)/libjpeg

=================================

Android.mk(2)

1 - Change:

LOCAL_PATH:= 

to

LOCAL_PATH:= $(call my-dir)

2 - Change:

BLACKLIST_SRC_FILES := \
  %endiantest.c \
  %freetype.c \
  %xtractprotos.c
LOCAL_SRC_FILES := \
  $(filter-out $(BLACKLIST_SRC_FILES),$(wildcard $(LEPTONICA_PATH)/src/*.c))

to

LOCAL_SRC_FILES := \
    leptonlib/src/adaptmap.c \
    leptonlib/src/affine.c \
    leptonlib/src/affinecompose.c \ ... continue (Put all the files on src directory, without files listed on blacklist).
Note: replace leptonlib for subrectory name of leptonlib source.


3- Change:

ifneq ($(TARGET_SIMULATOR),true)
LOCAL_SRC_FILES += \
  $(REAL_LOCAL_PATH)/stdio/open_memstream.c \
  $(REAL_LOCAL_PATH)/stdio/fopencookie.c \
  $(REAL_LOCAL_PATH)/stdio/fmemopen.c
LOCAL_C_INCLUDES += \
  $(REAL_LOCAL_PATH)/stdio
endif

# jni

LOCAL_SRC_FILES += \
  $(REAL_LOCAL_PATH)/box.cpp \
  $(REAL_LOCAL_PATH)/pix.cpp \
  $(REAL_LOCAL_PATH)/pixa.cpp \
  $(REAL_LOCAL_PATH)/utilities.cpp \
  $(REAL_LOCAL_PATH)/readfile.cpp \
  $(REAL_LOCAL_PATH)/writefile.cpp \
  $(REAL_LOCAL_PATH)/jni.cpp

LOCAL_C_INCLUDES += \
  $(REAL_LOCAL_PATH) \
  $(LEPTONICA_PATH)/src


to 

ifneq ($(TARGET_SIMULATOR),true)
LOCAL_SRC_FILES += \
  stdio/open_memstream.c \
  stdio/fopencookie.c \
  stdio/fmemopen.c
LOCAL_C_INCLUDES += \
  stdio
endif

# jni

LOCAL_SRC_FILES += \
  box.cpp \
  pix.cpp \
  pixa.cpp \
  utilities.cpp \
  jni.cpp

LOCAL_C_INCLUDES += \
  leptonlib/src

=================================

Android.mk(3)

1 - Change:

LOCAL_PATH:= 

to

LOCAL_PATH:= $(call my-dir)


2 - Change

On LOCAL_SRC_FILES change $(TESSERACT_PATH) to tesseract --Note: replace tesseract for subrectory name of tesseract source.

DON´T REPLACE $(TESSERACT_PATH) on LOCAL_C_INCLUDES only LOCAL_SRC_FILES.
DON´T REPLACE $(LEPTONICA_PATH) on LOCAL_C_INCLUDES.

3 - Change:

    In #jni

    LOCAL_SRC_FILES += \
      $(REAL_LOCAL_PATH)/tessbaseapi.cpp

    LOCAL_C_INCLUDES += \
      $(REAL_LOCAL_PATH) \
      $(TESSERACT_PATH)/api \
      $(LEPTONICA_PATH)/src

    to 

    LOCAL_SRC_FILES += \
      tessbaseapi.cpp

    LOCAL_C_INCLUDES += \
      $(LOCAL_PATH) \
      $(TESSERACT_PATH)/api \
      $(LEPTONICA_PATH)/src

对于我在Windows 7，Windows XP，Mac和Ubuntu上工作。

通过android NDK编译tesseract

3 个答案: