Addresses -> header import mess

[Riccardo Mottola]

Hi,

I have a strange problem I'm unabel to solve in the addresses framework 
(of Addresses as in GAP).

ON most systems, it compiles fine and works. However on some, like my 
mingw with gcc3 and on Sebastian's OpenBSD, compilation will fail with:

Making all for framework Addresses...
 Compiling file ADAddressBook.m ...
In file included from ADEnvelopeAddressBook.h:8,
                 from ADAddressBook.m:11:
./derived_src/Addresses/ADAddressBook.h:20: warning: duplicate interface 
declara
tion for class `ADAddressBook'
./derived_src/Addresses/ADAddressBook.h:20: error: redefinition of 
`struct ADAdd
ressBook'
./derived_src/Addresses/ADAddressBook.h:40: warning: duplicate interface 
declara
tion for category `ADAddressBook(GroupAccess)'
./derived_src/Addresses/ADAddressBook.h:51: warning: duplicate interface 
declara
tion for category `ADAddressBook(AddressesExtensions)'
In file included from ADPerson.h:9,
                 from ADAddressBook.m:13:
./derived_src/Addresses/ADRecord.h:14: warning: duplicate interface 
declaration
for class `ADRecord'
./derived_src/Addresses/ADRecord.h:19: error: redefinition of `struct 
ADRecord'
./derived_src/Addresses/ADRecord.h:50: warning: duplicate interface 
declaration
for category `ADRecord(Convenience)'
./derived_src/Addresses/ADRecord.h:56: warning: duplicate interface 
declaration
for category `ADRecord(AddressesExtensions)'
In file included from ADGroup.h:9,
                 from ADAddressBook.m:14:
./derived_src/Addresses/ADPerson.h:24: warning: duplicate interface 
declaration
for class `ADPerson'
./derived_src/Addresses/ADPerson.h:24: error: redefinition of `struct 
ADPerson'
./derived_src/Addresses/ADPerson.h:49: warning: duplicate interface 
declaration
for category `ADPerson(AddressesExtensions)'
make[4]: *** [obj/Addresses.obj/ADAddressBook.m.o] Error 1
make[3]: *** [internal-framework-run-compile-submake] Error 2
make[2]: *** [Addresses.all.framework.variables] Error 2
make[1]: *** [internal-all] Error 2
make: *** [internal-all] Error 2

why? Shouldn't import protect from double inclusion? I did quite some 
clean up in the imports, but it did not help.

Riccardo