added proper exports to gopt.h

renamed gopt.c to gopt.cpp

library/gopt/gopt.h

@@ -20,6 +20,8 @@ read http://www.purposeful.co.uk/tfl/
 #ifndef GOPT_H_INCLUDED
 #define GOPT_H_INCLUDED
 
+#include <Export.h>
+
 #define GOPT_ONCE   0
 #define GOPT_REPEAT 1
 #define GOPT_NOARG  0
@@ -31,29 +33,29 @@ read http://www.purposeful.co.uk/tfl/
 #define gopt_longs( ... )       (const char**)(const char*[]){ __VA_ARGS__, NULL }
 
 
-void *gopt_sort( int *argc, const char **argv, const void *opt_specs );
+DFHACK_EXPORT void *gopt_sort( int *argc, const char **argv, const void *opt_specs );
 /* returns a pointer for use in the following calls
  * prints to stderr and call exit() on error
  */
-size_t gopt( const void *opts, int key );
+DFHACK_EXPORT size_t gopt( const void *opts, int key );
 /* returns the number of times the option was specified
  * which will be 0 or 1 unless GOPT_REPEAT was used
  */
-size_t gopt_arg( const void *opts, int key, const char **arg );
+DFHACK_EXPORT size_t gopt_arg( const void *opts, int key, const char **arg );
 /* returns the number of times the option was specified
  * writes a pointer to the option argument from the first (or only) occurance to *arg
  */
-const char *gopt_arg_i( const void *opts, int key, size_t i );
+DFHACK_EXPORT const char *gopt_arg_i( const void *opts, int key, size_t i );
 /* returns a pointer to the ith (starting at zero) occurance
  * of the option, or NULL if it was not specified that many times
  */
-size_t gopt_args( const void *opts, int key, const char **args, size_t args_len );
+DFHACK_EXPORT size_t gopt_args( const void *opts, int key, const char **args, size_t args_len );
 /* returns the number of times the option was specified
  * writes pointers to the option arguments in the order of occurance to args[].
  * writes at most args_len pointers
  * if the return value is less than args_len, also writes a null pointer
  */
-void gopt_free( void *opts );
+DFHACK_EXPORT void gopt_free( void *opts );
 /* releases memory allocated in the corresponding call to gopt_sort()
  * opts can no longer be used 
  */