使用 G++ 编译带有头文件和静态库的程序时，确定缺少依赖项的最佳方法是什么？

我正在尝试为 Acontis etherCAT 主堆栈编译演示，但 G++ 在尝试编译时报告了许多未定义的引用，但没有提供任何关于需要包含哪些头文件或库来纠正问题的线索。由于 G++ 没有报告任何引用的缺失标头，我如何确定需要哪些文件来满足未定义的引用？

如果重要，我可以从源创建目标文件，链接期间会发生错误。Acontis 没有提供生成文件。

Acontis for linux 提供的文档如下：

I have tried using g++ and hunting down the header locations (Format simplified to make it more readable and <Install_Location> inserted so that each argument fits on a single line):

g++
-I <Install_Location>/Examples/EcMasterDemo/ 
-I <Install_Location>/SDK/INC/ 
-I <Install_Location>/SDK/INC/Linux 
-I <Install_Location>/Examples/Common/Linux 
-I <Install_Location>/Examples/Common/ 
-I <Install_Location>/Sources/Common 
-o test 
EcDemoApp.cpp 
<Install_Location>/Examples/Common/Linux/EcDemoMain.cpp 
<Install_Location>/Sources/Common/EcTimer.cpp 
<Install_Location>/SDK/LIB/Linux/x64/libAtemRasSrv.a 
<Install_Location>/SDK/LIB/Linux/x64/libEcMaster.a 
-pthread

This is a short snippet of the output:

I am running Ubuntu 20.04 with 4.14.213-rt103 #1 SMP PREEMPT RT for Kernel. g++ is version 9.3.0

Update after fixing the -l arguments (thank you steeldriver)

command executed:

/ClassB/Examples/EcMasterDemo$ gcc                            
<Install_Dir>/ClassB/Examples/Common/Linux/EcDemoMain.cpp                         
<Install_Dir>/ClassB/Examples/EcMasterDemo/EcDemoApp.cpp                          
<Install_Dir>/ClassB/Sources/Common/EcTimer.cpp                                   
-o test                                                                                                  
-I <Install_Dir>/ClassB/Examples/EcMasterDemo                                     
-I <Install_Dir>/ClassB/SDK/INC/Linux                                             
-I <Install_Dir>/ClassB/SDK/INC                                                   
-I <Install_Dir>/ClassB/Sources/Common                                            
-I <Install_Dir>/ClassB/Examples/Common                                           
-I <Install_Dir>/ClassB/Examples/Common/Linux                                     
-L <Install_Dir>/ClassB/SDK/LIB/Linux/x64                                         
-lAtemRasSrv -lEcMaster -pthread -ldl -lrt

Which seemed to have fixed a few undefined references, but a lot still exist.