H.J - hmm. That worked (thanks) but exactly why did it work? Shouldn't gcc be smart enough to realize that it is working either with a c++ file or linking to a c++ library? Ed It's part of a configure test as part of On Fri, Oct 17, 2008 at 9:24 PM, H.J. Lu <hjl.tools@gmail.com> wrote:

On Sat, Oct 18, 2008 at 11:13 AM, Edward Peschko <horos11@gmail.com> wrote:

...

All,

I'm trying to compile a thread with the boost, threading libraries, and am getting errors like these.

gcc -o conftest -g -O2 -I/GAAL/pesced_release/install/fuego/include/boost-1_36 -L/GAAL/pesced_release/install/fuego/lib /tmp/aa.c -lboost_thread-gcc43-mt

/GAAL/pesced_release/install/fuego/lib/libboost_thread-gcc43-mt.so: undefined reference to `__cxa_allocate_exception@CXXABI_1.3' /GAAL/pesced_release/install/fuego/lib/libboost_thread-gcc43-mt.so: undefined reference to `std::basic_string<char, std::char_traits<char>, std::allocator<char>

...

::_Rep::_M_destroy(std::allocator<char> const&)@GLIBCXX_3.4' /GAAL/pesced_release/install/fuego/lib/libboost_thread-gcc43-mt.so: undefined reference to `std::bad_alloc::~bad_alloc()@GLIBCXX_3.4' /GAAL/pesced_release/install/fuego/lib/libboost_thread-gcc43-mt.so: undefined reference to `__cxa_throw@CXXABI_1.3'

This is on solaris 2.10, using gnu ld (version 2.18..)

Any ideas on how to get around this?

Please use g++ instead of gcc.

-- H.J.