wasm: support more vendor libraries

Adds support for:
- box2d
- cgltf
- stb image
- stb rect pack

vendor/libc/math.odin

@@ -0,0 +1,100 @@
+package odin_libc
+
+import "base:builtin"
+
+import "core:math"
+
+@(require, linkage="strong", link_name="sqrtf")
+sqrtf :: proc "c" (v: f32) -> f32 {
+	return math.sqrt(v)
+}
+
+@(require, linkage="strong", link_name="cosf")
+cosf :: proc "c" (v: f32) -> f32 {
+	return math.cos(v)
+}
+
+@(require, linkage="strong", link_name="sinf")
+sinf :: proc "c" (v: f32) -> f32 {
+	return math.sin(v)
+}
+
+@(require, linkage="strong", link_name="atan2f")
+atan2f :: proc "c" (v: f32, v2: f32) -> f32 {
+	return math.atan2(v, v2)
+}
+
+@(require, linkage="strong", link_name="isnan")
+isnan :: proc "c" (v: f32) -> bool {
+	return math.is_nan(v)
+}
+
+@(require, linkage="strong", link_name="isinf")
+isinf :: proc "c" (v: f32) -> bool {
+	return math.is_inf(v)
+}
+
+@(require, linkage="strong", link_name="sqrt")
+sqrt :: proc "c" (x: f64) -> f64 {
+	return math.sqrt(x)
+}
+
+@(require, linkage="strong", link_name="floor")
+floor :: proc "c" (x: f64) -> f64 {
+	return math.floor(x)
+}
+
+@(require, linkage="strong", link_name="ceil")
+ceil :: proc "c" (x: f64) -> f64 {
+	return math.ceil(x)
+}
+
+@(require, linkage="strong", link_name="pow")
+pow :: proc "c" (x, y: f64) -> f64 {
+	return math.pow(x, y)
+}
+
+@(require, linkage="strong", link_name="fmod")
+fmod :: proc "c" (x, y: f64) -> f64 {
+	return math.mod(x, y)
+}
+
+@(require, linkage="strong", link_name="cos")
+cos :: proc "c" (x: f64) -> f64 {
+	return math.cos(x)
+}
+
+@(require, linkage="strong", link_name="acos")
+acos :: proc "c" (x: f64) -> f64 {
+	return math.acos(x)
+}
+
+@(require, linkage="strong", link_name="fabs")
+fabs :: proc "c" (x: f64) -> f64 {
+	return math.abs(x)
+}
+
+@(require, linkage="strong", link_name="abs")
+abs :: proc "c" (x: i32) -> i32 {
+	return builtin.abs(x)
+}
+
+@(require, linkage="strong", link_name="ldexp")
+ldexp :: proc "c" (x: f64, y: i32) -> f64{
+	return math.ldexp(x, int(y))
+}
+
+@(require, linkage="strong", link_name="exp")
+exp :: proc "c" (x: f64) -> f64 {
+	return math.exp(x)
+}
+
+@(require, linkage="strong", link_name="log")
+log :: proc "c" (x: f32) -> f32 {
+	return math.ln(x)
+}
+
+@(require, linkage="strong", link_name="sin")
+sin :: proc "c" (x: f32) -> f32 {
+	return math.sin(x)
+}