Trinity install error

[zhanghao]

My systerm is ununtu. When I install Trinity wieh make, the error is :

config.status: executing libtool commands
make[1]: entering dictionary `/home/bac/virus_detection/trinityrnaseq_r2012-06-08/trinity-plugins/jellyfish-1.1.5'
make all-am
make[2]: entering dictionary `/home/bac/virus_detection/trinityrnaseq_r2012-06-08/trinity-plugins/jellyfish-1.1.5'
CXX jellyfish/libjellyfish_la-err.lo
In file included from jellyfish/err.cc:17:0:
./jellyfish/err.hpp: In static member function ‘static void err::no_t::write(std:stream&, int)’:
./jellyfish/err.hpp:42:46: error: ignoring return value of ‘char* strerror_r(int, char*, size_t)’, declared with attribute warn_unused_result [-Werror=unused-result]
strerror_r(e, err_str, sizeof(err_str));
^
cc1plus: all warnings being treated as errors
make[2]: *** [jellyfish/libjellyfish_la-err.lo] error 1
make[2]:leaving dictionary `/home/bac/virus_detection/trinityrnaseq_r2012-06-08/trinity-plugins/jellyfish-1.1.5'
make[1]: *** [all] error 2
make[1]:leaving dictionary `/home/bac/virus_detection/trinityrnaseq_r2012-06-08/trinity-plugins/jellyfish-1.1.5'
make: *** [all] error 2