nearpt3c.h: removed extern C.

src/compare.h

@@ -15,11 +15,11 @@
   GNU General Public License for more details.
 */
 
-#ifndef _COMPARE_H
-#define _COMPARE_H
+#ifndef  COMPARE_H
+#define  COMPARE_H
 
-#if defined(HAVE_CONFIG_H)
-#  include "config.h"
+#ifdef  HAVE_CONFIG_H
+#include "config.h"
 #endif
 
 #include <math.h>
@@ -52,4 +52,4 @@
 
 #define STR_IS_EQ(x,y) ((*x)==(*y) && strcmp(x,y) == 0)
 
-#endif  /* _COMPARE_H */
+#endif  /* COMPARE_H */

src/nearpt3c.h

@@ -6,12 +6,6 @@ typedef float Coord_T;
 #define NPT3SFACT 32000
 #define NPT3SCALE(x) (0.5+(x+1)*NPT3SFACT)
 
-#if defined(__cplusplus)
-extern "C" {
-#endif
 void *nearpt3_preprocess(const int nfixpts, Coord_T **pts);
 int nearpt3_query(void *g, const Coord_T *q);
 void nearpt3_destroy(void *g);
-#if defined(__cplusplus)
-}
-#endif