qemu can not find lua pkg

[Joseph Smith]

Ok next promlem when building qemu:

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[joe@smitty2m qemu-0.11.0]$ sh build.sh
Package lua was not found in the pkg-config search path.
Perhaps you should add the directory containing `lua.pc'
to the PKG_CONFIG_PATH environment variable
No package 'lua' found
Package lua was not found in the pkg-config search path.
Perhaps you should add the directory containing `lua.pc'
to the PKG_CONFIG_PATH environment variable
No package 'lua' found

Error LUA not found, can't build with SerialICE support.

Please call configure before running make!
make: *** [config-host.mak] Error 1
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Any ideas?