Changes: update
v0.20

 - Fix warnings in the tests
 - Try to fix build failures on *BSD
CompileTest.pm: actually remove -fwhole-archive
MemPtr.xs: add new_from_ptr() method (closes #12)
04-pointer: test ptr by ref
Changes: update
MakeMaker.pm: use -pthread instead of -lpthread
CompileTest.pm: explicitly set C standard (closes #13)
Raw.xs: do not croak if Math::Int64 is not installed
dist.ini: only recommends Math::Int64
Changes: update
v0.21

 - Add MemPtr -> new_from_ptr() (GH#12)
 - Fix a few build failures
 - Only recommend Math::Int64
MemPtr.pm: fix new_from_buf example
test for refcount
increment refcount to callback code ref on new, decrement on DESTROY
Changes: update
t: use Config{dlext} instead of hardcoding 'so'
CompileTest.pm: print cc command before execution
CompileTest.pm: use ExtUtils::CBuilder for compiling tests
Changes: update