android NDK编译tesseract
我正在尝试使用android ndk r5为android编译tesseract，tesseract的代码是通过检查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。
回答 3
Stack Overflow用户
发布于 2012-03-19 12:14:14
我也有同样的问题，我想我已经解决了。可能对那些遇到类似错误的人很有帮助：
在OSX上，我只更改了Android.mk文件，给出了绝对路径，如下所示
第一个：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以及相应的jni/com_googlecode_tesseract_android/Android.mk。
我认为这个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，所有这些都编译得很好。
Stack Overflow用户
发布于 2011-09-09 15:06:31
在makefile中搜索adaptmap。首先构建创建此模块的makefile。
Stack Overflow用户
发布于 2011-10-06 03:13:18
所以，我已经在windows7和windows xp上编译过了，但这是一个丑陋的变通办法。
基本的问题是"LOCAL_PATH :=“的值为空，我不知道为什么cygwin会有这个问题，所以你必须更改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对于在windows7、windows xp、Mac和Ubuntu上工作的我来说。
https://stackoverflow.com/questions/7334040
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