From ffbfa6475c97f1bbc74c4b336667f39d83851902 Mon Sep 17 00:00:00 2001
From: Anders Elfgren <srekel@gmail.com>
Date: Sun, 8 Dec 2024 13:02:39 +0100
Subject: [PATCH] Added JCV_DISABLE_STRUCT_PACKING config define. (#90)

This is currently needed for Zig compatibility: https://github.com/ziglang/zig/issues/4754
---
 src/jc_voronoi.h      | 10 ++++++++++
 src/jc_voronoi_clip.h |  4 ++++
 2 files changed, 14 insertions(+)

diff --git a/src/jc_voronoi.h b/src/jc_voronoi.h
index 625d142..aad369d 100644
--- a/src/jc_voronoi.h
+++ b/src/jc_voronoi.h
@@ -45,6 +45,8 @@ extern "C" {
     #define JCV_EDGE_INTERSECT_THRESHOLD 1.0e-10F
 #endif
 
+// Also see: JCV_DISABLE_STRUCT_PACKING
+
 typedef JCV_REAL_TYPE jcv_real;
 
 typedef struct jcv_point_           jcv_point;
@@ -113,7 +115,9 @@ extern int jcv_boxshape_clip(const jcv_clipper* clipper, jcv_edge* e);
 extern void jcv_boxshape_fillgaps(const jcv_clipper* clipper, jcv_context_internal* allocator, jcv_site* s);
 
 
+#ifndef JCV_DISABLE_STRUCT_PACKING
 #pragma pack(push, 1)
+#endif
 
 struct jcv_point_
 {
@@ -185,7 +189,9 @@ struct jcv_diagram_
     jcv_point               max;
 };
 
+#ifndef JCV_DISABLE_STRUCT_PACKING
 #pragma pack(pop)
+#endif
 
 #ifdef __cplusplus
 }
@@ -337,7 +343,9 @@ static inline jcv_real jcv_point_dist( const jcv_point* pt1, const jcv_point* pt
 
 // Structs
 
+#ifndef JCV_DISABLE_STRUCT_PACKING
 #pragma pack(push, 1)
+#endif
 
 typedef struct jcv_halfedge_
 {
@@ -397,7 +405,9 @@ struct jcv_context_internal_
     jcv_rect            rect;
 };
 
+#ifndef JCV_DISABLE_STRUCT_PACKING
 #pragma pack(pop)
+#endif
 
 void jcv_diagram_free( jcv_diagram* d )
 {
diff --git a/src/jc_voronoi_clip.h b/src/jc_voronoi_clip.h
index 7f0a608..174ad62 100644
--- a/src/jc_voronoi_clip.h
+++ b/src/jc_voronoi_clip.h
@@ -6,7 +6,9 @@
 
 #include "jc_voronoi.h"
 
+#ifndef JCV_DISABLE_STRUCT_PACKING
 #pragma pack(push, 1)
+#endif
 
 typedef struct jcv_clipping_polygon_
 {
@@ -14,7 +16,9 @@ typedef struct jcv_clipping_polygon_
     int num_points;
 } jcv_clipping_polygon;
 
+#ifndef JCV_DISABLE_STRUCT_PACKING
 #pragma pack(pop)
+#endif
 
 
 // Convex polygon clip functions