feat: wi-fi - expand support and fix issues, add GUI components

template/sysroot/include/libc/math.h

@@ -11,8 +11,47 @@ extern "C" {
 #define INFINITY  __builtin_inff()
 #define NAN       __builtin_nanf("")
 
+/* C99 floating-point classification. */
+#define FP_NAN       0
+#define FP_INFINITE  1
+#define FP_ZERO      2
+#define FP_SUBNORMAL 3
+#define FP_NORMAL    4
+
+#define fpclassify(x) \
+    __builtin_fpclassify(FP_NAN, FP_INFINITE, FP_NORMAL, FP_SUBNORMAL, \
+                         FP_ZERO, x)
+#define isnan(x)    __builtin_isnan(x)
+#define isinf(x)    __builtin_isinf(x)
+#define isfinite(x) __builtin_isfinite(x)
+#define isnormal(x) __builtin_isnormal(x)
+#define signbit(x)  __builtin_signbit(x)
+
 double fabs(double x);
 double frexp(double x, int *exp);
+
+/* C89 modf and the C99 float variants assumed by hosted libstdc++
+   (--with-newlib crossconfig). The float forms wrap the double
+   implementations. */
+double modf(double x, double *iptr);
+float  modff(float x, float *iptr);
+double hypot(double x, double y);
+float  hypotf(float x, float y);
+float  acosf(float x);
+float  asinf(float x);
+float  atanf(float x);
+float  atan2f(float y, float x);
+float  coshf(float x);
+float  expf(float x);
+float  fmodf(float x, float y);
+float  frexpf(float x, int *exp);
+float  ldexpf(float x, int exp);
+float  logf(float x);
+float  log10f(float x);
+float  powf(float x, float y);
+float  sinhf(float x);
+float  tanf(float x);
+float  tanhf(float x);
 double ldexp(double x, int n);
 long double ldexpl(long double x, int n);
 double floor(double x);