how to know the compiled in libcurl version?

[VirtumartOz]

I'm using centos6, it has default curl 7.19 installed, and cant be removed by yum becaused it is needed by many other program
i'm trying to compile 7.72 with go-curl, is there a way to show the libcurl version the go-curl currently using?
I executed go get -v in my project dir, and recompiled my program, and it didn't work.
What commands do i need to tell the cgo compiler to use my curl7.72 instead not 7.19 , thanks.