merged debian build_flags.patch
merged debian patch for rely on sys/inotify.h for inotify support

sys/inotify.h was added to glibc in version 2.4 in 2006,
and workarounds for older glibc versions are no longer required.
Make it compile under Slackare.
Add EXTRA_CFLAGS to let SlackBuilds passed in extra compile flags
Merge pull request #16 from qunying/master

merged some patches from debian and change Makefile to fix link error on Slackware