libjava build failure on branch for sparc-sun-solaris2.7

Tue May 22 22:33:00 GMT 2001

On Wed, May 23, 2001 at 12:18:07AM +0100, Jeff Sturm wrote:
> Joe Buck wrote:
> > Undefined first referenced
> > symbol in file
> > java::net::PlainSocketImpl::bind(java::net::InetAddress*, int)./.libs/libgcj.so
>> I saw this too. It turns out that Solaris <sys/socket.h> does:
>> #define bind __xnet_bind
>> however only when _XOPEN_SOURCE is defined. That changed with this
> patch:
>> 2001年05月15日 Mark Mitchell <mark@codesourcery.com>
> * config/sparc/sol2.h (CPLUSPLUS_CPP_SPEC): Define.
>> I tried undef'ing bind etc. in my libjava tree. Although that worked
> for my build, it feels like a dirty hack to me.
>> What's the right way to keep the preprocessor from interfering with java
> names?

Strictly speaking, fixincl, I think.
Alternatively, provide the symbol that Solaris is looking for. There are
two implementations of bind(3) available. From a Solaris man page:
# (3SOCKET)
# These functions constitute the sockets library, lib-
# socket. This library is implemented as a shared
# object, libsocket.so, and as an archive, libsocket.a,
# but is not automatically linked by the C compilation
# system. Specify -lsocket on the cc command line to
# link with this library. See libsocket(3LIB).
#
# (3XNET)
# These functions constitute X/Open networking inter-
# faces which comply with the X/Open CAE Specification,
# Networking Services, Issue 4 (September, 1994). This
# library is implemented as a shared object, libxnet.so,
# but is not automatically linked by the C compilation
# system. Specify -lxnet on the cc command line to link
# with this library. See libxnet(3LIB) and standards(5)
# for compilation information.
The native sockets library also requires the NSL library. So you have your
choice of '-lxnet' or '-lsocket -lnsl'. The (more standardly-conforming)
_XOPEN_SOURCE indicates the first should be used.
The first library also has a slightly different socket() declaration;
the third parameter is of type socklen_t rather than int.
Phil
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