It seems like you should update your libgc to the latest stable gc7.2d.

在 2013-1-30 AM7:55,"z_axis" <z_axis@163.com>写道:
guile-2.0.7>./configure --prefix=/home/***/guile/ LDFLAGS='-L/usr/local/lib'
guile-2.0.7>make
...
./.libs/libguile-2.0.so: undefined reference to `GC_unregister_my_thread'
./.libs/libguile-2.0.so: undefined reference to `GC_pthread_create'
./.libs/libguile-2.0.so: undefined reference to `GC_register_my_thread'
./.libs/libguile-2.0.so: undefined reference to `GC_pthread_detach'
*** Error code 1
...
Stop in guile-2.0.7.

Regards!