[Fwd: `undefined reference` Error When Linking]

-------- Forwarded Message --------
From: Lam Ling <[email protected]>
To: [email protected]
Subject: `undefined reference` Error When Linking
Date: Mon, 26 Mar 2018 07:44:44 +0000

Hi all,


I built and installed glpk 4.65 from source, and I can verify that it's
successfully installed to `/usr/local/lib`. But when I tried to compile
a C++ program with glpk using gcc 5.4.0 on Ubuntu 16.04, I got many
undefined reference errors on the glpk functions.


Here's the g++ command I used:


g++ -I/home/linuxbrew/.linuxbrew/Cellar/eigen/3.3.4/include/eigen3
-I/usr/local/include -lm -L/usr/local/lib -lglpk -Wall -Ofast -std=c++11
util.cpp main.cpp -o main



And here's the full error message in a
gist: https://gist.github.com/hkalexling/ec5a3e704624ecaa05e23b451f957815


Thanks in advance,
Alex