Linux下添加eigen头文件,linux系统IDE找不到Eigen

编译过程中遇到

/usr/local/include/vikit/math_utils.h:12:22: fatal error: Eigen/Core: No such file or directory

但是&＃xff0c;我是确定安装了eigen的&＃xff0c;这是怎么回事呢&＃xff5e;

使用pkg-config 检测我的安装

pkg-config --cflags eigen

Package eigen was not found in the pkg-config search path.

Perhaps you should add the directory containing &＃96;eigen.pc&＃39;

to the PKG_CONFIG_PATH environment variable

No package &＃39;eigen&＃39; found

再次检测

pkg-config --cflags eigen3

-I/usr/local/include/eigen3

于是

sean&＃64;fight:/usr/local/include$ sudo ln -s ./eigen3/Eigen/   ./Eigen

再次使用IDE编译&＃xff0c;通过&＃xff5e; 但pkg-config --cflags eigen 还是没有检测到。