How to debug a recipe error?

I follow Sergey's instruction and successfully build a Galileo board image (yeah!).

Then try to add a package as following by opening image-full.bb mentioned in Sergey's instruction, and adding a line to include mindlna.

                    .

                    .

IMAGE_INSTALL += "wpa-supplicant"

IMAGE_INSTALL += "openssh"

IMAGE_INSTALL += "nodejs"

IMAGE_INSTALL += "mindlna"                         <<<< the line I add

                    .

                    .

After bitbake, I find minidlna is under a nonworking folder. So I make a copy of minidlna out of the nonworking folder, bitbake again, and find the error message in the attached logfile.

It's a linking error, and there are two questions, what is linking problem and how to fix it inside the build environment. If anyone has any idea, I will be happen to try.

By the way, if I add a well-behavior recipe (not inside a nonworking folder) to IMAGE_INSTALL, the package will compile ok (really convenient!).