Build failed on Mac OS X

[gangzhuo]

Build failed on Mac OS X

[GangZhuo]

I think it's because I using inline incorrect. I changed the 'inline' to 'static inline'. I have no Mac OS, so i can't test.
Ref:
https://gcc.gnu.org/onlinedocs/gcc-4.9.0/gcc/Inline.html#Inline
http://stackoverflow.com/questions/12844729/linking-error-for-inline-functions
http://xushouze2006.blog.163.com/blog/static/16230032200831710196672/

[imzjy]

Thanks, I think you get to the point. Now these inline functions are exported to symbol table, I have confirmed this by issue command:

nm bin/pcs_men.o

It changes U to T, so I get to know functions like append_mem_ent been exported now.

argp is not default installed on Mac, so in makefile, we also pass the option -largp to gcc, I have fixed this, and throw a pull request.