porting glibc to solaris-sparc and S390 platform

[esp5]

hey,

I wanted to port glibc to the above platforms. Right now, I'm in the middle of 
the solaris port, have about a 1000 line patch written so far, and have run 
into some undefined symbols:


../libc.so: undefined reference to `inet_pton' 
../libc.so: undefined reference to `__getdents' 
../libc.so: undefined reference to `__ftruncate' 
../libc.so: undefined reference to `__res_ninit' 
../libc.so: undefined reference to `__gethostbyaddr_r'  
../libc.so: undefined reference to `__gethostbyname2_r' 
../libc.so: undefined reference to `__div64'    
../libc.so: undefined reference to `h_errno'    
../libc.so: undefined reference to `__sigaltstack' 
../libc.so: undefined reference to `__inet_aton'   
../libc.so: undefined reference to `if_nametoindex' 
../libc.so: undefined reference to `__mul64' 
../libc.so: undefined reference to `_res'       
../libc.so: undefined reference to `in6addr_loopback'  
../libc.so: undefined reference to `__urem64'  
../libc.so: undefined reference to `__profil'  
../libc.so: undefined reference to `__sigsuspend'  
../libc.so: undefined reference to `__sigorset'  
../libc.so: undefined reference to `__sigisemptyset' 
../libc.so: undefined reference to `__udiv64'  
../libc.so: undefined reference to `_sigintr'   
../libc.so: undefined reference to `__errno_location' 
../libc.so: undefined reference to `inet_ntop' 
../libc.so: undefined reference to `__sigandset'   
../libc.so: undefined reference to `__getservbyname_r'  


I did some digging, and lo and behold most of these symbols are defined in areas
where the compile process *doesn't do anything*, ie: whole parts of the source
tree are left uncompiled. For example, inet_pton occurs in resolv/inet_pton.c,
but the whole resolv directory is untouched. I think this is because of a 
compilation order problem. The statement that fails is:

gcc -nostdlib -nostartfiles -o iconvconfig  -Wl,-dynamic-linker=/opt/builds/inst
all/lib/ld.so.1   ../csu/crt1.o ../csu/crti.o `gcc --print-file-name=crtbegin.o`
 iconvconfig.o strtab.o xmalloc.o  -Wl,-rpath-link=..:../math:../elf:../dlfcn:..
/nss:../nis:../rt:../resolv:../crypt ../libc.so ../libc_nonshared.a -lgcc `gcc -
-print-file-name=crtend.o` ../csu/crtn.o

Note the '../resolv' path here, as well as the '../libc.so'. It looks like this 
expects resolv to be compiled before it gets to compiling elf.


Anyways, right now I'm digging through the make files, which are one hell of a 
piece of work. I'd like to get an overview on how it all works, where the main 
program driver is, and so on. 

I'd also like to know why address@hidden is both closed *and* 
unsubscribable. Is there *any* way to get on that list?

Ed