Sorry, I did not clarify it clearly.
I tried to install the dependencies manually according to the install file. The pkg-config package in the manjaro repository is named as "pkgconf" but there are several other packages including "pkgconfig" in their names. I think its a typo and may cause failture. The pkgconf package provides two bin files: pkg-config and pkgconf, pkg-config is just a symbol link to the new pkgconf.