From 170e2e9fccc5e0bb77ec79da7cbb4c51b3176053 Mon Sep 17 00:00:00 2001
From: Recep Aslantas <info@recp.me>
Date: Sat, 14 Jan 2017 12:22:23 +0200
Subject: [PATCH] convert PI to float to suppress warnings

---
 include/cglm-cam.h   | 2 +-
 include/cglm-euler.h | 6 +++---
 include/cglm-types.h | 4 ++++
 include/cglm-util.h  | 8 ++++----
 4 files changed, 12 insertions(+), 8 deletions(-)

diff --git a/include/cglm-cam.h b/include/cglm-cam.h
index 6d55637..171d826 100644
--- a/include/cglm-cam.h
+++ b/include/cglm-cam.h
@@ -146,7 +146,7 @@ glm_perspective_default(mat4 dest) {
   int32_t rect[4];
   glm_platfom_get_viewport_rect(rect);
   
-  glm_perspective((float)M_PI_4,
+  glm_perspective((float)CGLM_PI_4,
                   (float)rect[2]/rect[3],
                   0.01f,
                   100.0f,
diff --git a/include/cglm-euler.h b/include/cglm-euler.h
index 117516f..637c850 100644
--- a/include/cglm-euler.h
+++ b/include/cglm-euler.h
@@ -50,7 +50,7 @@ glm_euler_angles(mat4 m, vec3 dest) {
       int   path;
       
       a[0][1] = asinf(-m[0][2]);
-      a[1][1] = M_PI - a[0][1];
+      a[1][1] = CGLM_PI - a[0][1];
 
       cy1 = cosf(a[0][1]);
       cy2 = cosf(a[1][1]);
@@ -67,12 +67,12 @@ glm_euler_angles(mat4 m, vec3 dest) {
       glm_vec_dup(a[path], dest);
     } else {
       dest[0] = atan2f(m[1][0], m[2][0]);
-      dest[1] = M_PI_2;
+      dest[1] = CGLM_PI_2;
       dest[2] = 0.0f;
     }
   } else {
     dest[0] = atan2f(-m[1][0], -m[2][0]);
-    dest[1] =-M_PI_2;
+    dest[1] =-CGLM_PI_2;
     dest[2] = 0.0f;
   }
 }
diff --git a/include/cglm-types.h b/include/cglm-types.h
index f60984e..85a19cd 100644
--- a/include/cglm-types.h
+++ b/include/cglm-types.h
@@ -23,4 +23,8 @@ typedef vec4 mat4[4];
 
 typedef vec4 versor;
 
+#define CGLM_PI    (float)M_PI
+#define CGLM_PI_2  (float)M_PI_2
+#define CGLM_PI_4  (float)M_PI_4
+
 #endif /* cglm_types_h */
diff --git a/include/cglm-util.h b/include/cglm-util.h
index 8e8c535..b2f28a6 100644
--- a/include/cglm-util.h
+++ b/include/cglm-util.h
@@ -24,25 +24,25 @@ glm_sign(int val) {
 CGLM_INLINE
 float
 glm_rad(float deg) {
-  return deg * M_PI / 180.0f;
+  return deg * CGLM_PI / 180.0f;
 }
 
 CGLM_INLINE
 float
 glm_deg(float rad) {
-  return rad * 180.0f / M_PI;
+  return rad * 180.0f / CGLM_PI;
 }
 
 CGLM_INLINE
 void
 glm_make_rad(float *deg) {
-  *deg = *deg * M_PI / 180.0f;
+  *deg = *deg * CGLM_PI / 180.0f;
 }
 
 CGLM_INLINE
 void
 glm_make_deg(float *rad) {
-  *rad = *rad * 180.0f / M_PI;
+  *rad = *rad * 180.0f / CGLM_PI;
 }
 
 #endif /* cglm_util_h */