   How to reference a .a static library in cocoa project
  Hi, I'm totally new to cocoa framework and Mac OS X programming.Now I'm trying to link my own static library .a to a cocoa project, I have added the .a file into framework section, and set header file search directory, include library header file into project, but when building, the compiler report referenced function name can not be resolved.The .a static library was compiled by same GCC compiler under same Mac OS X system, and it can be linked to a sample program which compiled by GCC.Can anybody here give me any hint that what's wrong?Thanks in advance.   