linux centos 安装最新版本 tesseract

最近遇到一个问题,发现centos只能支持到tesseract 3.X版本,版本针对中文识别效果比不上tesseract 4.X以上的版本,所以计划对线上的tesseract进行一次升级

第一步先安装C++17,
下载 gcc-8.3.0.tar.gz

tar -zxvf gcc-8.0.0.tar.gz
cd gcc-8.3.0
./configure

checking for the correct version of gmp.h... no
configure: error: Building GCC requires GMP 4.2+, MPFR 2.4.0+ and MPC 0.8.0+.
Try the --with-gmp, --with-mpfr and/or --with-mpc options to specify
their locations.  Source code for these libraries can be found at
their respective hosting sites as well as at
ftp://gcc.gnu.org/pub/gcc/infrastructure/.  See also
http://gcc.gnu.org/install/prerequisites.html for additional info.  If
you obtained GMP, MPFR and/or MPC from a vendor distribution package,
make sure that you have installed both the libraries and the header
files.  They may be located in separate packages.

发现错误编译不通过
安装依赖库

yum install gcc gcc-c++ gcc-gnat zlib-devel glibc-devel glibc-devel.i686 libgcc libgcc.i686 -y
 ./configure
 make && make install &
 由于安装过程较长,在后台安装
安装成功

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