Ensure compilation with STRICT_R_HEADERS (#222)

* Ensure compilation with strict r headers * news
paleolimbot · Sep 5, 2024 · a813a00 · a813a00
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diff --git a/NEWS.md b/NEWS.md
@@ -1,5 +1,7 @@
 # wk (development version)
 
+- Ensure package compiles with `STRICT_R_HEADERS=1` (#222).
+
 # wk 0.9.2
 
 - Add `wk_crs()` and `wk_set_crs()` methods for `bbox` (#213)

diff --git a/src/handle-crc.c b/src/handle-crc.c
@@ -27,15 +27,15 @@ int wk_crc_handle_single(wk_handler_t* handler, const wk_meta_t* meta, double x,
   double angle;
 
   for (int i = 0; i < segs_per_circle; i++) {
-    angle = i / segs_per_circle * PI * 2.0;
+    angle = i / segs_per_circle * M_PI * 2.0;
     coord[0] = x + r * cos(angle);
     coord[1] = y + r * sin(angle);
     HANDLE_OR_RETURN(handler->coord(meta, coord, i, handler->handler_data));
   }
 
   // re-export the first coordinate (i = 0) identically
   // to ensure that the loops are closed with no floating-point error
-  angle = 0 / segs_per_circle * PI * 2.0;
+  angle = 0 / segs_per_circle * M_PI * 2.0;
   coord[0] = x + r * cos(angle);
   coord[1] = y + r * sin(angle);
   HANDLE_OR_RETURN(handler->coord(meta, coord, segs_per_circle, handler->handler_data));