From e8972149ef905f931152eec248c0d254ced8cbd7 Mon Sep 17 00:00:00 2001
From: Jeremy Hu <huxingyi@msn.com>
Date: Sun, 22 Jan 2017 16:46:16 +0930
Subject: [PATCH] Fix windows build.

---
 README.md      | 5 +++++
 src/array.c    | 3 ++-
 src/bmesh.c    | 7 +++++--
 src/draw.cpp   | 2 +-
 src/draw.h     | 3 ++-
 src/matrix.c   | 4 ++++
 src/render.cpp | 2 +-
 src/vector3d.c | 4 ++++
 8 files changed, 24 insertions(+), 6 deletions(-)

diff --git a/README.md b/README.md
index 211d9d64..8fc305f4 100644
--- a/README.md
+++ b/README.md
@@ -17,6 +17,11 @@ Build
 $ cd build
 $ qmake -spec macx-xcode
 ```
+*Generate VC Project*
+```
+$ cd build
+$ qmake -tp vc
+```
 *Generate Makefile*
 ```
 $ cd build
diff --git a/src/array.c b/src/array.c
index 813350c1..b5abdee4 100644
--- a/src/array.c
+++ b/src/array.c
@@ -21,12 +21,13 @@ array *arrayCreate(int nodeSize) {
 }
 
 int arraySetLength(array *arr, int length) {
+  char *newNodes;
   if (length > arr->capacity) {
     int newCapacity = (arr->capacity + 1) * 2;
     if (newCapacity < length) {
       newCapacity = length;
     }
-    char *newNodes = (char *)realloc(arr->nodes, arr->nodeSize * newCapacity);
+    newNodes = (char *)realloc(arr->nodes, arr->nodeSize * newCapacity);
     if (!newNodes) {
       fprintf(stderr, "%s:Insufficient memory.\n", __FUNCTION__);
       return -1;
diff --git a/src/bmesh.c b/src/bmesh.c
index 94f65130..966cd221 100644
--- a/src/bmesh.c
+++ b/src/bmesh.c
@@ -924,8 +924,11 @@ static int bmeshAddWallsBetweenQuadsToModel(bmesh *bm, vec3 *origin, quad *q1,
   vec3 o2v;
   matchTwoFaces(q1, q2);
   for (i = 0; i < 4; ++i) {
-    quad wall = {{q1->pt[i], q2->pt[i],
-      q2->pt[(i + 1) % 4], q1->pt[(i + 1) % 4]}};
+	quad wall;
+	wall.pt[0] = q1->pt[i];
+	wall.pt[1] = q2->pt[i];
+	wall.pt[2] = q2->pt[(i + 1) % 4];
+	wall.pt[3] = q1->pt[(i + 1) % 4];
     vec3Normal(&wall.pt[0], &wall.pt[1], &wall.pt[2], &normal);
     vec3Sub(&wall.pt[0], origin, &o2v);
     if (vec3DotProduct(&o2v, &normal) < 0) {
diff --git a/src/draw.cpp b/src/draw.cpp
index 2472ee35..8ceedfee 100644
--- a/src/draw.cpp
+++ b/src/draw.cpp
@@ -118,7 +118,7 @@ int drawPrintf(int x, int y, const char *fmt, ...) {
   return drawText(x, y, text);
 }
 
-static const float drawDebugColors[][4] {
+static const float drawDebugColors[][4] = {
   {1.00, 0.00, 1.00, 1.0},
   {0.00, 1.00, 1.00, 1.0},
   {1.00, 1.00, 0.00, 1.0},
diff --git a/src/draw.h b/src/draw.h
index 05a3cde8..92fe6e72 100644
--- a/src/draw.h
+++ b/src/draw.h
@@ -3,7 +3,8 @@
 #include "3dstruct.h"
 #ifdef __APPLE__
 #include <OpenGL/glu.h>
-#else
+#elif defined(_WIN32)
+#include <windows.h>
 #include <GL/glu.h>
 #endif
 
diff --git a/src/matrix.c b/src/matrix.c
index c853a13b..3f2ac7e3 100644
--- a/src/matrix.c
+++ b/src/matrix.c
@@ -2,6 +2,10 @@
 #include <string.h>
 #include <math.h>
 
+#ifndef M_PI
+#define M_PI 3.1415926
+#endif
+
 #define DEG2RAD (M_PI / 180.0)
 
 matrix *matrixLoadIdentity(matrix *mat) {
diff --git a/src/render.cpp b/src/render.cpp
index f2b81aad..e04f14c0 100644
--- a/src/render.cpp
+++ b/src/render.cpp
@@ -9,7 +9,7 @@
 #include "vector3d.h"
 #include "subdivide.h"
 
-static const float bmeshBallColors[][4] {
+static const float bmeshBallColors[][4] = {
   {0.00, 0.78, 1.00, 0.5},
   {1.00, 0.00, 0.00, 0.5},
   {1.00, 1.00, 1.00, 0.5}
diff --git a/src/vector3d.c b/src/vector3d.c
index 8fbe3c75..eed5f14a 100644
--- a/src/vector3d.c
+++ b/src/vector3d.c
@@ -2,6 +2,10 @@
 #include "vector3d.h"
 #include "matrix.h"
 
+#ifndef M_PI
+#define M_PI 3.1415926
+#endif
+
 float vec3Length(vec3 *p) {
   double mag;
   mag = p->x * p->x + p->y * p->y + p->z * p->z;