C ++: external library in eclipse CDT

Question

Now I use eclipse CDT for my C / C ++ application, but there is a problem when I link my external library, it cannot be loaded properly at runtime, even if I put the library file next to the source file, I gave the path to the library, and he correctly called.

project directory:

• include (.h files)
• source (.cpp. files ..)
• Lib (libbozorth3.a, LSFMatcher.a)

I want a link that static libraries with my application have the following steps:

• project-> properties-> general-> path and symbols-> include the path to the directory and library (bozorth3.a, LSFMatcher.a) and add the path to the library.
• and also i add the same library in the linker section as well

When I create a program, it displays an error I cannot find -lbozorth3.a cannot find -lLSFMatcher.a

So, I need the right steps to add an external library to a c / C ++ application.

Answer 1

I usually tune

• library
• library search path (required for compilation)
• run-time search path (-rpath Linker option)

(see the images below and exchange the path in the Linker flags with the one you used in the library search path)

Answer 2

you should use -Wl,-rpath=${workspace_loc}/Liball , and not -Wl,-rpath,${workspace_loc}/Liball .

Also in the -l library add a library, for example, for example. for libgcc.a add only gcc

Answer 3

You should pay attention to what is in parentheses: Other parameters (-Xlinker [option]).

The method for passing parameters is different. Instead of using:

 -Wl,-rpath,'${ProjDirPath}/../../system/lib' 

You should use:

 -rpath '${ProjDirPath}/../../system/lib' 

That is, delete "-Wl" and replace the second "," with "" (space).