use Devel::Peek; Devel::Peek::Dump(undef); eval('require File::Find'); Devel::Peek::Dump(undef); #### SV = NULL(0x0) at 0x8ca1b0 REFCNT = 2147483597 FLAGS = (READONLY) SV = NULL(0x0) at 0x8ca1b0 REFCNT = 2147483005 FLAGS = (READONLY) #### eval('require Devel::Peek'); Devel::Peek::Dump(undef); eval('require File::Find'); Devel::Peek::Dump(undef); #### SV = NULL(0x0) at 0x34a1b0 REFCNT = 2147483602 FLAGS = (READONLY) SV = NULL(0x0) at 0x34a1b0 REFCNT = 2147483010 FLAGS = (READONLY)