syntax error near unexpected token `XDMCP,'

[Conrado Brocco Tramontini]

Hello,

I'm trying to install the Xserver on my RH9, but when I run
./xserver-inst.sh, I receive the follow error:

checking whether make sets $(MAKE)... (cached) yes
./configure: line 18594: syntax error near unexpected token `XDMCP,'
./configure: line 18594: `PKG_CHECK_MODULES(XDMCP, xproto)'

I check my pkg-config version.

pkg-config --version
0.15.0

What is wrong ?

tks

Conrado Tramontini
São Paulo, Brasil