I need the boost libraries in order to compile a new application. I installed the boost1.31 package from the fink release, using fink install boost 1.31 without any trouble, but when I then tried to configure the dependent application, it found that the boost/numeric/ublas/matrix.hpp library was unusable. On the advice of the boost-users list, I then installed boost 1.32, using the prebuilt executable for Darwin available on the boost web site. The install hung several times creating the serialization libraries, so I installed using the tag --without-serialization, and completed the install successfully that way. However, I still get an error when I configure the dependent package, saying that the matrix.hpp library is unusable. The config.log says: checking for boost/numeric/ublas/matrix.hpp usability... configure:22782: g++ -c -I/sw/include -O2 -ansi -Wall -Wno-unused -I/sw/include -I/usr/local/include /boost-1_32 conftest.cc >&5 In file included from /usr/local/include/boost-1_32/boost/numeric/ublas/traits.hpp:27, from /usr/local/include/boost-1_32/boost/numeric/ublas/storage.hpp:29, from /usr/local/include/boost-1_32/boost/numeric/ublas/matrix.hpp:21, from configure:22826: /usr/local/include/boost-1_32/boost/numeric/ublas/ returntype_deduction.hpp:53: warning: use of `long double' type; its size may change in a future release /usr/local/include/boost-1_32/boost/numeric/ublas/ returntype_deduction.hpp:53: warning: (Long double usage is reported only once for each file. /usr/local/include/boost-1_32/boost/numeric/ublas/ returntype_deduction.hpp:53: warning: To disable this warning, use -Wno-long-double.) In file included from /usr/local/include/boost-1_32/boost/numeric/ublas/vector.hpp:24, from /usr/local/include/boost-1_32/boost/numeric/ublas/matrix.hpp:22, from configure:22826: /usr/local/include/boost-1_32/boost/numeric/ublas/ vector_expression.hpp:1924: error: due to a defect in the G++ 3.2 ABI, G++ has assigned the same mangled name to two different types In file included from /usr/local/include/boost-1_32/boost/numeric/ublas/matrix.hpp:23, from configure:22826: /usr/local/include/boost-1_32/boost/numeric/ublas/ matrix_expression.hpp:5201: error: due to a defect in the G++ 3.2 ABI, G++ has assigned the same mangled name to two different types configure:22785: $? = 1 configure: failed program was: | #line 22760 "configure" | /* confdefs.h. */ Higher in the config.log is another error (unrelated?) that doesn't seem to cause any trouble: gcc -E -I/sw/include conftest.c configure:15096:28: ac_nonexistent.h: No such file or directory configure:15085: $? = 1 configure: failed program was: | #line 15070 "configure" | /* confdefs.h. */ Here's the info on my gcc. What is wrong with it ? And how can I fix it? gcc -v &5 Reading specs from /usr/libexec/gcc/darwin/ppc/3.3/specs Thread model: posix gcc version 3.3 20030304 (Apple Computer, Inc. build 1671) Thanks! Becky ------------------------------------------------------------------------ ---------------------- Rebecca Bendick, Ph.D. Bullard Laboratories University of Cambridge Madingley Road CAMBRIDGE CB3 0EZ United Kingdom bendick@esc.cam.ac.uk