本安装教程在arm架构上进行测试，在x86的系统上也可以

1 下载

        官方github:https://github.com/coin-or/Ipopt,但官方的ipopt包里面第三方库可能只有一个目录，这里将ipopt-3.12整个包打包好了，百度网盘永久免费链接如下:

链接：https://pan.baidu.com/s/1WLjxEKEgVUleiPU1ZHHwnQ 提取码：bite

        安装依赖：

sudo apt-get install libblas3 libblas-dev liblapack3 liblapack-dev gfortran build-essential cppad gcc g++

2 编译安装

cd Ipopt-3.12  #进入这个文件夹
mkdir build  
cd build  
../configure --prefix /usr/local --build=arm-linux  #配置安装为arm架构的
#../configure --prefix /usr/local   #配置安装为x86架构的
make -j4  #j后面的4是多少个核即cpu的核数
make test
sudo make install

        安装成功如下图所示

        配置库：

export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH

sudo ldconfig

3 测试安装是否成功

ldconfig -p | grep libipopt

meng@meng:~$ ldconfig -p | grep libipopt
	libipoptamplinterface.so.0 (libc6,AArch64) => /usr/local/lib/libipoptamplinterface.so.0
	libipoptamplinterface.so (libc6,AArch64) => /usr/local/lib/libipoptamplinterface.so
	libipopt.so.0 (libc6,AArch64) => /usr/local/lib/libipopt.so.0
	libipopt.so (libc6,AArch64) => /usr/local/lib/libipopt.so

        成功的话如下所示：

4 报错

4.1 /Ipopt-3.12.4/ThirdParty/ASL/install-sh: Permission denied

        make -j4后出现如下报错，是权限问题；在安装包对应文件下赋予权限即可

meng@meng:~/Desktop/softwares/gxj/Ipopt-3.12.4/build$ make -j8
Making all in ThirdParty/ASL
make[1]: Entering directory '/home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/build/ThirdParty/ASL'
./compile_Unix_ASL
./compile_Unix_ASL: 24: ./compile_Unix_ASL: /home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/ThirdParty/ASL/install-sh: Permission denied
Makefile:724: recipe for target 'libamplsolver.a' failed
make[1]: *** [libamplsolver.a] Error 126
make[1]: Leaving directory '/home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/build/ThirdParty/ASL'
Makefile:323: recipe for target 'all-recursive' failed
make: *** [all-recursive] Error 1

sudo chmod 777 install-sh 

4.2 安装报错

        sudo make install后报如下错误，这里把ipopt整个包舍弃，换成1中百度网盘中的包，就编译过了。

/home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/Ipopt/install-sh -c -m 644 config_ipopt.h /usr/local/include/coin/IpoptConfig.h
/bin/bash: /home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/Ipopt/install-sh: Permission denied
Makefile:718: recipe for target 'install-exec-local' failed
make[3]: *** [install-exec-local] Error 126
make[3]: Leaving directory '/home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/build/Ipopt/src/Common'
Makefile:631: recipe for target 'install-am' failed
make[2]: *** [install-am] Error 2
make[2]: Leaving directory '/home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/build/Ipopt/src/Common'
Makefile:677: recipe for target 'install-recursive' failed
make[1]: *** [install-recursive] Error 1
make[1]: Leaving directory '/home/bit/Desktop/softwares/gxj/Ipopt-3.12.4/build/Ipopt'
Makefile:323: recipe for target 'install-recursive' failed
make: *** [install-recursive] Error 1