asterisk users - Dec 2005 - Compile modules app_rxfax.c app_txfax.c for asterisk 1.2.1

When I try to compile app_rxfax.c app_txfax.c I get a big list of the same 
error messages. (like: but no such parameter)

I solved the same problem with a previous installation but I don't how... 
stupid!!!

Makefile:
all: app_rxfax.so app_txfax.so

app_rxfax.so: app_rxfax.c
         gcc -shared -Xlinker -x -O2 -D_GNU_SOURCE -o $@ app_rxfax.c 
-lspandsp -ltiff

app_txfax.so: app_txfax.c
         gcc -shared -Xlinker -x -O2 -D_GNU_SOURCE -o $@ app_txfax.c 
-lspandsp -ltiff


Last part of the error message:

/usr/include/bits/sockaddr.h:29: error: declaration for parameter 
`sa_family_t' but no such parameter
/usr/include/bits/socket.h:36: error: declaration for parameter 
`socklen_t' but no such parameter
/usr/include/sys/uio.h:50: error: declaration for parameter `writev' but 
no such parameter
/usr/include/sys/uio.h:40: error: declaration for parameter `readv' but no 
such parameter
app_rxfax.c:360: error: `res' undeclared (first use in this function)
app_rxfax.c: At top level:
app_rxfax.c:361: error: syntax error before "return"
make: *** [app_rxfax.so]