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CentOS7下編譯安裝Mapnik Mapnik編譯教程

  發(fā)布時(shí)間：2016-11-28 14:46:41   作者：佚名   我要評(píng)論
本文為大家具體的介紹如何在CentOS7系統(tǒng)下編譯安裝Mapnik？小編這里使用的是Master版本，Master版本需要glibc2.14+的支持，一起來看看吧

InstallationTroubleshooting 編譯安裝遇到問題匯總 

git clone https://github.com/mapnik/mapnik.git

安裝必要的依賴 

yum install boost-devel postgresql-devel proj-devel proj-epsg

擴(kuò)展需要的依賴 

yum install sqlite-devel libpng-devel libtiff-devel libjpeg-devel libicu-devel

編譯的時(shí)候，官方需求最少要有5GB(for g++)的內(nèi)存，對(duì)于小內(nèi)存的用戶(我當(dāng)時(shí)只有2G)可能會(huì)出現(xiàn)內(nèi)存不夠而異常退出的情況，如果出現(xiàn)以下狀況而退出的話： 

g++: internal compiler error: Killed (program cc1plus)

我們可以臨時(shí)增加磁盤交換空間來臨時(shí)解決該問題 

sudo dd if=/dev/zero of=/swapfile bs=64M count=16 

sudo mkswap /swapfile 

sudo swapon /swapfile

然后在編譯完成后，在恢復(fù)到之前的狀態(tài) 

sudo swapoff /swapfile 

sudo rm /swapfile

開始編譯 

./configure 

make 

make install

中間會(huì)出現(xiàn)錯(cuò)誤如：

編譯一下harfbuzz 參照如下修改

Harfbuzz not found 

$ brew install harfbuzz
...
$ ./configure
...
Checking for C++ library harfbuzz... no
Could not find required header or shared library for harfbuzz
...
Exiting... the following required dependencies were not found:
 - harfbuzz (HarfBuzz text shaping library | configure with HB_LIBS & HB_INCLUDES)

Solution: HB_LIBS and HB_INCLUDES are directories, not cflags/ldflags, and HB_INCLUDES needs not to include the “harfbuzz” directory itself. If pkg-config says: 

$ pkg-config --libs --cflags harfbuzz 

-I/usr/local/Cellar/harfbuzz/0.9.35_1/include/harfbuzz -L/usr/local/Cellar/harfbuzz/0.9.35_1/lib -lharfbuzz

what you actually need is 修改配置文件為，直接指定HB_LIBS，HB_INCLUDES 

$ ./configure HB_LIBS=/usr/local/Cellar/harfbuzz/0.9.35_1/lib HB_INCLUDES=/usr/local/Cellar/harfbuzz/0.9.35_1/include

簡單測(cè)試 

python import mapnik

如果出現(xiàn)類似的錯(cuò)誤 

ImportError: libmapnik.so.3.0: cannot open shared object file: No such file or directory

需要手工添加一下so的位置 

vim /etc/ld.so.conf.d/mapnik-x86_64.conf

添加一行內(nèi)容： /usr/local/lib

然后保存退出，同時(shí)執(zhí)行一下 

ldconfig

如果沒有問題的話可以試一下渲染demo，會(huì)生成一些不同品質(zhì)不同格式的圖片demo文件 

python demo/python/rundemo.py

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