tesseract编译问题：未设置leptonica_OUTPUT_NAME [英] tesseract compile issue: leptonica_OUTPUT_NAME is not set

问题描述

我正在尝试编译Tesseract开源OCR引擎（ https：// github的源代码。 com / tesseract-ocr / tesseract ）。

I am trying to compile the source code of Tesseract Open Source OCR Engine (https://github.com/tesseract-ocr/tesseract).

但是在运行cmake时，总是会出现以下错误：

But when running cmake, I always get the following error:

CMake错误：此项目中使用了以下变量，但是
设置为NOTFOUND。请设置它们或确保它们已设置
并在CMake文件中正确测试：leptonica_OUTPUT_NAME
由目标 libtesseract链接到目录/ home / test / github / tesseract

CMake Error: The following variables are used in this project, but they are set to NOTFOUND. Please set them or make sure they are set and tested correctly in the CMake files: leptonica_OUTPUT_NAME linked by target "libtesseract" in directory /home/test/github/tesseract

我已经下载了leptonica的源代码（ http://www.leptonica.com/download.html ）并安装它。

I have already downloaded the source code of leptonica (http://www.leptonica.com/download.html) and installed it.

我想知道应将哪个值设置为leptonica_OUTPUT_NAME。

I am wondering which value should I set to leptonica_OUTPUT_NAME.

推荐答案

我遇到了同样的问题。似乎

I ran into the same problem. It seems that

find_package(PkgConfig REQUIRED)
pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})

在查找leptonica时遇到问题，而cmake的 find_package 正常工作：

in CMakeLists.txt has problems finding leptonica whereas cmake's find_package just works fine:

if(NOT EXISTS ${PROJECT_SOURCE_DIR}/.cppan)
#    if (NOT Leptonica_DIR AND NOT MSVC)
#        find_package(PkgConfig REQUIRED)
#        pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})
#    else()
        find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} REQUIRED CONFIG)
#    endif()
else()

出于完整性考虑（均从来源汇编）：

For completeness (both compiled from sources):

• tesseract 4.00.00alpha


• leptonica-1.74.4

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