compile blues

[Pauli Hartala <pauli hartala pp inet fi>]

Hello,
I'm getting the following messages when I try to compile 2.2.0 version. 
Any hints anyone?
gdm.c:518: warning: implicit declaration of function `setlocale'
gdm.c:518: `LC_ALL' undeclared (first use in this function)
gdm.c:518: (Each undeclared identifier is reported only once
gdm.c:518: for each function it appears in.)
gdm.c:519: warning: statement with no effect
gdm.c:520: warning: statement with no effect
make[2]: *** [gdm.o] Error 1
make[2]: Leaving directory `/home/paulivil/gdm-2.2.0/daemon'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/paulivil/gdm-2.2.0'
make: *** [all-recursive-am] Error 2

--
Pauli Hartala http://www.iki.fi/pauli.hartala
(poista nospam. kun vastaat spostilla)