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Updated Compiling (markdown)

Shreeshrii 2017-06-23 16:49:15 +05:30
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Compiling.md

@ -2,18 +2,18 @@
**Note:** This wiki expects you to be familiar with compiling software on your operation system.
# Table of contents
## Table of contents
* [Linux](https://github.com/tesseract-ocr/tesseract/wiki/Compiling#linux)
* [Windows](https://github.com/tesseract-ocr/tesseract/wiki/Compiling#windows)
* [macOS](https://github.com/tesseract-ocr/tesseract/wiki/Compiling#macos)
* [Common Errors](https://github.com/tesseract-ocr/tesseract/wiki/Compiling#common-errors)
* [Miscellaneous](https://github.com/tesseract-ocr/tesseract/wiki/Compiling#miscellaneous)
# Linux
## Linux
The build instructions for Linux also apply to other UNIX like operating systems.
## Dependencies
### Dependencies
* A compiler for C and C++: GCC or Clang
* GNU Autotools: autoconf, automake, libtool
@ -42,15 +42,9 @@ sudo apt-get install libpango1.0-dev
sudo apt-get install libcairo2-dev
```
You also need to install [Leptonica](http://www.leptonica.org/).
### Leptonica
One option is to install the distro's Leptonica package:
```
sudo apt-get install libleptonica-dev
```
**but if you are using an oldish version of Linux, the Leptonica version may be too old, so you will need to build from source.**
You also need to install [Leptonica](http://www.leptonica.org/). Ensure that the development headers for Leptonica are installed before compiling Tesseract.
Tesseract versions and the minimum version of Leptonica required:
@ -63,9 +57,17 @@ Tesseract versions and the minimum version of Leptonica required:
3.02 | 1.69 | [Ubuntu 12.04](http://packages.ubuntu.com/precise/libtesseract3)
3.01 | 1.67 |
The sources are at http://www.leptonica.org/. The instructions at [Leptonica README](http://www.leptonica.org/source/README.html) are clear, but basically it is as described in [Compilation](#Compilation) below.
One option is to install the distro's Leptonica package:
Ensure that the development headers for Leptonica are installed before compiling Tesseract. Note that if building Leptonica from source, you may need to ensure that /usr/local/lib is in your library path. This is a standard Linux bug, and the information at [Stackoverflow](http://stackoverflow.com/questions/4743233/is-usr-local-lib-searched-for-shared-libraries) is very helpful.
```
sudo apt-get install libleptonica-dev
```
**but if you are using an oldish version of Linux, the Leptonica version may be too old, so you will need to build from source.**
The sources are at https://github.com/DanBloomberg/leptonica . The instructions for bbuilding are given in [Leptonica README](http://www.leptonica.org/source/README.html).
Note that if building Leptonica from source, you may need to ensure that /usr/local/lib is in your library path. This is a standard Linux bug, and the information at [Stackoverflow](http://stackoverflow.com/questions/4743233/is-usr-local-lib-searched-for-shared-libraries) is very helpful.
## Installing Tesseract from Git