MSL_C header cleanup (#2988)

* msl_c header cleanup

* math header cleanup

* fix rest of shieldD configs

* cleanup cflag configs a bit

* fix shield build

include/dolphin/ar.h

@@ -1,6 +1,9 @@
 #ifndef _DOLPHIN_AR_H_
 #define _DOLPHIN_AR_H_
 
+#ifdef __REVOLUTION_SDK__
+#include <revolution/aralt.h>
+#else
 #include <dolphin/types.h>
 
 #ifdef __cplusplus
@@ -64,8 +67,12 @@ void ARQSetChunkSize(u32 size);
 u32 ARQGetChunkSize(void);
 BOOL ARQCheckInit(void);
 
+u16 __ARGetInterruptStatus(void);
+void __ARClearInterrupt(void);
+
 #ifdef __cplusplus
 }
 #endif
 
 #endif
+#endif

include/dolphin/os.h

@@ -1,7 +1,7 @@
 #ifndef _DOLPHIN_OS_H_
 #define _DOLPHIN_OS_H_
 
-#include <stdio.h>
+#include <cstdio.h>
 
 #ifdef __REVOLUTION_SDK__
 #include <revolution/os.h>

include/dolphin/sdk_math.h

@@ -1,4 +1,4 @@
-#pragma cplusplus on
+// fake MSL_C math for sdk specifically since it differs from game MSL_C math
 
 extern inline float sqrtf(float x) {
     static const double _half=.5;
@@ -46,6 +46,10 @@ extern inline float fabsf(float x) {
 }
 
 extern float cosf(float);
+extern float sinf(float);
+extern float tanf(float);
+extern float acosf(float);
+
 extern inline float cos(float x) {
     return cosf(x);
 }
@@ -62,5 +66,3 @@ inline float floor(float x) {
         // x < 0 -> int conversion of x above rounded toward zero(so decrement)                
     return (float)i;
 }
-
-#pragma cplusplus reset

include/dolphin/types.h

@@ -82,7 +82,7 @@ typedef unsigned int uint;
 #define __REGISTER
 #endif
 
-#include <stddef.h>
+#include <cstddef.h>
 
 #endif
 #endif