Lib Files Compilation error

I have created a lib file stdarg.lib containing the standard ANSI macros:

  • va_start(ap, parmN)     prepare to access parameters
  • va_arg(ap, type)        get next parameter value and type
  • va_end(ap)

and added this file into Dynamic C 10.60 lib sub directory MyRabbit5700.
The macros are working fine but when referenced in my …c files I get a compilation error saying that compiler can not find stdarg.lib. even when including in …c files statements like #use stdarg.lib or #include “\MyRabb5700\stdarg.lib” .
Any idea what I must do so that compiler recognize my lib files?