add missing Windows exporting junk for nlopt_algorithm_name; thanks to Ofek...

add missing Windows exporting junk for nlopt_algorithm_name; thanks to Ofek Shilon for the bug report

darcs-hash:20100906175643-c8de0-dc82178a1444e3cf632cb44d405483d720e82163.gz

api/general.c

@@ -98,7 +98,7 @@ static const char nlopt_algorithm_names[NLOPT_NUM_ALGORITHMS][256] = {
      "Sequential Quadratic Programming (SQP) (local, derivative)",
 };
 
-const char *nlopt_algorithm_name(nlopt_algorithm a)
+const char * NLOPT_STDCALL nlopt_algorithm_name(nlopt_algorithm a)
 {
      if (((int) a) < 0 || a >= NLOPT_NUM_ALGORITHMS) return "UNKNOWN";
      return nlopt_algorithm_names[a];

api/nlopt.h

@@ -146,7 +146,7 @@ typedef enum {
      NLOPT_NUM_ALGORITHMS /* not an algorithm, just the number of them */
 } nlopt_algorithm;
 
-extern const char *nlopt_algorithm_name(nlopt_algorithm a);
+NLOPT_EXTERN(const char *) nlopt_algorithm_name(nlopt_algorithm a);
 
 typedef enum {
      NLOPT_FAILURE = -1, /* generic failure code */