Use builtin fabs

common/common.h

@@ -11,6 +11,7 @@
 #include <sys/stat.h>
 #include <unistd.h>
 #include <malloc.h>
+#include <math.h>
 #ifdef SWITCH
 #include <switch.h>
 #endif

common/math.h

@@ -7,7 +7,3 @@ float approxSin(float x);
 inline float clamp(float x, float min, float max) {
     return x<min ? min : x > max ? max : x;
 }
-
-inline float nxfabs(float x) {
-    return x < 0 ? -x : x;
-}

common/menu.c

@@ -219,7 +219,7 @@ void drawWave(float timer, color_t color, float height, float phase, float speed
                 new_color = waveBlendAdd(existing_color, color, clamp(alpha, 0.0, 1.0) * 0.3);
             }
             else if (alpha < 0.3) { // anti-aliasing
-                alpha = nxfabs(alpha);
+                alpha = fabs(alpha);
                 new_color = MakeColor(color.r * (1.0 - alpha) + existing_color.r * alpha, color.g * (1.0 - alpha) + existing_color.g * alpha, color.b * (1.0 - alpha) + existing_color.b * alpha, 255);
             }
             else { // darken closer to bottom of the waves