Torsocks v2.1.0 fails to build on RHEL/CentOS 5.x

The newly-released torsocks v2.1.0 does not build in RHEL/CentOS v5.11 (all updates applied.)

This is the first error:

In file included from ref.h:23, from connection.h:28, from defaults.h:21, from log.c:27: compat.h:133:25: error: sys/eventfd.h: No such file or directory make[2]: *** [log.lo] Error 1

This is due to the fact that eventfd.h really does not exist on this system. If I change the include from sys/eventfd.h to sys/syscall.h the compile finishes without error, but then the link fails:

../../src/lib/.libs/libtorsocks.so: undefined reference to eventfd' ../../src/lib/.libs/libtorsocks.so: undefined reference to inotify_init1' ../../src/lib/.libs/libtorsocks.so: undefined reference to epoll_create1' ../../src/lib/.libs/libtorsocks.so: undefined reference to epoll_pwait' collect2: ld returned 1 exit status

No problems seen when building on a CentOS6 system, just on CentOS5.

The prior v2.0.0 does build on CentOS5 with the help of some function attribute trickery (prepending ATTR_HIDDEN to several function and data definitions).

Trac:
Username: tmpname0901