Is there pkg-config in OpenWRT toolchain?

I'm building TeXLive on MIPS, and some compilations requring pkg-config.
I found x86_64-pc-linux-gnu-pkg-config under /staging_dir/host/bin, but it only finds libraries in /staging_dir/host/lib.
Is there any pkg-config that finds in or /staging_dir/toolchain or /staging_dir/target?