diff --git a/libc/include/math.h b/libc/include/math.h
index 7dd1539..248ed3c 100644
--- a/libc/include/math.h
+++ b/libc/include/math.h
@@ -89,69 +89,69 @@
  * as __attribute_const__. In C99, FENV_ACCESS affects the purity of these functions.
  */
 
-int __fpclassifyd(double) __attribute_const__;
-int __fpclassifyf(float) __attribute_const__;
-int __fpclassifyl(long double) __attribute_const__;
-int __isfinitef(float) __attribute_const__;
-int __isfinite(double) __attribute_const__;
-int __isfinitel(long double) __attribute_const__;
-int __isinff(float) __attribute_const__;
-int __isinfl(long double) __attribute_const__;
-int __isnanf(float) __attribute_const__ __INTRODUCED_IN(21);
-int __isnanl(long double) __attribute_const__;
-int __isnormalf(float) __attribute_const__;
-int __isnormal(double) __attribute_const__;
-int __isnormall(long double) __attribute_const__;
-int __signbit(double) __attribute_const__;
-int __signbitf(float) __attribute_const__;
-int __signbitl(long double) __attribute_const__;
+int __fpclassifyd(double __x) __attribute_const__;
+int __fpclassifyf(float __x) __attribute_const__;
+int __fpclassifyl(long double __x) __attribute_const__;
+int __isfinitef(float __x) __attribute_const__;
+int __isfinite(double __x) __attribute_const__;
+int __isfinitel(long double __x) __attribute_const__;
+int __isinff(float __x) __attribute_const__;
+int __isinfl(long double __x) __attribute_const__;
+int __isnanf(float __x) __attribute_const__ __INTRODUCED_IN(21);
+int __isnanl(long double __x) __attribute_const__;
+int __isnormalf(float __x) __attribute_const__;
+int __isnormal(double __x) __attribute_const__;
+int __isnormall(long double __x) __attribute_const__;
+int __signbit(double __x) __attribute_const__;
+int __signbitf(float __x) __attribute_const__;
+int __signbitl(long double __x) __attribute_const__;
 
-double	acos(double);
-double	asin(double);
-double	atan(double);
-double	atan2(double, double);
-double	cos(double);
-double	sin(double);
-double	tan(double);
+double acos(double __x);
+double asin(double __x);
+double atan(double __x);
+double atan2(double __y, double __x);
+double cos(double __x);
+double sin(double __x);
+double tan(double __x);
 
-double	cosh(double);
-double	sinh(double);
-double	tanh(double);
+double cosh(double __x);
+double sinh(double __x);
+double tanh(double __x);
 
-double	exp(double);
-double	frexp(double, int *);	/* fundamentally !__attribute_const__ */
-double	ldexp(double, int);
-double	log(double);
-double	log10(double);
-double	modf(double, double *);	/* fundamentally !__attribute_const__ */
+double exp(double __x);
+double frexp(double __x, int* __exponent); /* fundamentally !__attribute_const__ */
+double ldexp(double __x, int __exponent);
+double log(double __x);
+double log10(double __x);
+double modf(double __x, double* __integral_part); /* fundamentally !__attribute_const__ */
 
-double	pow(double, double);
-double	sqrt(double);
+double pow(double __x, double __y);
+double sqrt(double __x);
 
-double	ceil(double);
-double	fabs(double) __attribute_const__;
-double	floor(double);
-double	fmod(double, double);
+double ceil(double __x);
+double fabs(double __x) __attribute_const__;
+double floor(double __x);
+double fmod(double __x, double __y);
 
-double	acosh(double);
-double	asinh(double);
-double	atanh(double);
-double	cbrt(double);
-double	erf(double);
-double	erfc(double);
-double	exp2(double);
-double	expm1(double);
-double	fma(double, double, double);
-double	hypot(double, double);
-int	ilogb(double) __attribute_const__;
-double	lgamma(double);
-long long llrint(double);
-long long llround(double);
-double	log1p(double);
-double log2(double) __INTRODUCED_IN(18);
-double	logb(double);
-long	lrint(double);
-long	lround(double);
+double acosh(double __x);
+double asinh(double __x);
+double atanh(double __x);
+double cbrt(double __x);
+double erf(double __x);
+double erfc(double __x);
+double exp2(double __x);
+double expm1(double __x);
+double fma(double __x, double __y, double __z);
+double hypot(double __x, double __y);
+int ilogb(double __x) __attribute_const__;
+double lgamma(double __x);
+long long llrint(double __x);
+long long llround(double __x);
+double log1p(double __x);
+double log2(double __x) __INTRODUCED_IN(18);
+double logb(double __x);
+long lrint(double __x);
+long lround(double __x);
 
 /*
  * https://code.google.com/p/android/issues/detail?id=271629
@@ -164,160 +164,160 @@
  * to the std namespace, making it impossible to use both <cmath> (which gets
  * included by a lot of other standard headers) and ::isnan.
  */
-int(isinf)(double) __attribute_const__ __INTRODUCED_IN(21);
-int	(isnan)(double) __attribute_const__;
+int (isinf)(double __x) __attribute_const__ __INTRODUCED_IN(21);
+int (isnan)(double __x) __attribute_const__;
 
-double nan(const char*) __attribute_const__ __INTRODUCED_IN_ARM(13) __INTRODUCED_IN_MIPS(13)
+double nan(const char* __kind) __attribute_const__ __INTRODUCED_IN_ARM(13) __INTRODUCED_IN_MIPS(13)
     __INTRODUCED_IN_X86(9);
 
-double	nextafter(double, double);
-double	remainder(double, double);
-double	remquo(double, double, int*);
-double	rint(double);
+double nextafter(double __x, double __y);
+double remainder(double __x, double __y);
+double remquo(double __x, double __y, int* __quotient_bits);
+double rint(double __x);
 
-double	copysign(double, double) __attribute_const__;
-double	fdim(double, double);
-double	fmax(double, double) __attribute_const__;
-double	fmin(double, double) __attribute_const__;
-double	nearbyint(double);
-double	round(double);
-double scalbln(double, long) __INTRODUCED_IN_X86(18) __VERSIONER_NO_GUARD;
-double scalbn(double, int);
-double	tgamma(double);
-double	trunc(double);
+double copysign(double __value, double __sign) __attribute_const__;
+double fdim(double __x, double __y);
+double fmax(double __x, double __y) __attribute_const__;
+double fmin(double __x, double __y) __attribute_const__;
+double nearbyint(double __x);
+double round(double __x);
+double scalbln(double __x, long __exponent) __INTRODUCED_IN_X86(18) __VERSIONER_NO_GUARD;
+double scalbn(double __x, int __exponent);
+double tgamma(double __x);
+double trunc(double __x);
 
-float	acosf(float);
-float	asinf(float);
-float	atanf(float);
-float	atan2f(float, float);
-float	cosf(float);
-float	sinf(float);
-float	tanf(float);
+float acosf(float __x);
+float asinf(float __x);
+float atanf(float __x);
+float atan2f(float __y, float __x);
+float cosf(float __x);
+float sinf(float __x);
+float tanf(float __x);
 
-float	coshf(float);
-float	sinhf(float);
-float	tanhf(float);
+float coshf(float __x);
+float sinhf(float __x);
+float tanhf(float __x);
 
-float	exp2f(float);
-float	expf(float);
-float	expm1f(float);
-float	frexpf(float, int *);	/* fundamentally !__attribute_const__ */
-int	ilogbf(float) __attribute_const__;
-float	ldexpf(float, int);
-float	log10f(float);
-float	log1pf(float);
-float log2f(float) __INTRODUCED_IN(18);
-float	logf(float);
-float	modff(float, float *);	/* fundamentally !__attribute_const__ */
+float exp2f(float __x);
+float expf(float __x);
+float expm1f(float __x);
+float frexpf(float __x, int* __exponent); /* fundamentally !__attribute_const__ */
+int ilogbf(float __x) __attribute_const__;
+float ldexpf(float __x, int __exponent);
+float log10f(float __x);
+float log1pf(float __x);
+float log2f(float __x) __INTRODUCED_IN(18);
+float logf(float __x);
+float modff(float __x, float* __integral_part); /* fundamentally !__attribute_const__ */
 
-float	powf(float, float);
-float	sqrtf(float);
+float powf(float __x, float __y);
+float sqrtf(float __x);
 
-float	ceilf(float);
-float	fabsf(float) __attribute_const__;
-float	floorf(float);
-float	fmodf(float, float);
-float	roundf(float);
+float ceilf(float __x);
+float fabsf(float __x) __attribute_const__;
+float floorf(float __x);
+float fmodf(float __x, float __y);
+float roundf(float __x);
 
-float	erff(float);
-float	erfcf(float);
-float	hypotf(float, float);
-float	lgammaf(float);
-float tgammaf(float) __INTRODUCED_IN_ARM(13) __INTRODUCED_IN_MIPS(13) __INTRODUCED_IN_X86(9);
+float erff(float __x);
+float erfcf(float __x);
+float hypotf(float __x, float __y);
+float lgammaf(float __x);
+float tgammaf(float __x) __INTRODUCED_IN_ARM(13) __INTRODUCED_IN_MIPS(13) __INTRODUCED_IN_X86(9);
 
-float	acoshf(float);
-float	asinhf(float);
-float	atanhf(float);
-float	cbrtf(float);
-float	logbf(float);
-float	copysignf(float, float) __attribute_const__;
-long long llrintf(float);
-long long llroundf(float);
-long	lrintf(float);
-long	lroundf(float);
-float nanf(const char*) __attribute_const__ __INTRODUCED_IN_ARM(13) __INTRODUCED_IN_MIPS(13)
+float acoshf(float __x);
+float asinhf(float __x);
+float atanhf(float __x);
+float cbrtf(float __x);
+float logbf(float __x);
+float copysignf(float __value, float __sign) __attribute_const__;
+long long llrintf(float __x);
+long long llroundf(float __x);
+long lrintf(float __x);
+long lroundf(float __x);
+float nanf(const char* __kind) __attribute_const__ __INTRODUCED_IN_ARM(13) __INTRODUCED_IN_MIPS(13)
     __INTRODUCED_IN_X86(9);
-float	nearbyintf(float);
-float	nextafterf(float, float);
-float	remainderf(float, float);
-float	remquof(float, float, int *);
-float	rintf(float);
-float	scalblnf(float, long) __INTRODUCED_IN_X86(18) __VERSIONER_NO_GUARD;
-float scalbnf(float, int);
-float	truncf(float);
+float nearbyintf(float __x);
+float nextafterf(float __x, float __y);
+float remainderf(float __x, float __y);
+float remquof(float __x, float __y, int* __quotient_bits);
+float rintf(float __x);
+float scalblnf(float __x, long __exponent) __INTRODUCED_IN_X86(18) __VERSIONER_NO_GUARD;
+float scalbnf(float __x, int __exponent);
+float truncf(float __x);
 
-float	fdimf(float, float);
-float	fmaf(float, float, float);
-float	fmaxf(float, float) __attribute_const__;
-float	fminf(float, float) __attribute_const__;
+float fdimf(float __x, float __y);
+float fmaf(float __x, float __y, float __z);
+float fmaxf(float __x, float __y) __attribute_const__;
+float fminf(float __x, float __y) __attribute_const__;
 
-long double acoshl(long double) __INTRODUCED_IN(21);
-long double acosl(long double) __INTRODUCED_IN(21);
-long double asinhl(long double) __INTRODUCED_IN(21);
-long double asinl(long double) __INTRODUCED_IN(21);
-long double atan2l(long double, long double) __INTRODUCED_IN(21);
-long double atanhl(long double) __INTRODUCED_IN(21);
-long double atanl(long double) __INTRODUCED_IN(21);
-long double cbrtl(long double) __INTRODUCED_IN(21);
-long double ceill(long double);
-long double copysignl(long double, long double) __attribute_const__;
-long double coshl(long double) __INTRODUCED_IN(21);
-long double cosl(long double) __INTRODUCED_IN(21);
-long double erfcl(long double) __INTRODUCED_IN(21);
-long double erfl(long double) __INTRODUCED_IN(21);
-long double exp2l(long double) __INTRODUCED_IN(21);
-long double expl(long double) __INTRODUCED_IN(21);
-long double expm1l(long double) __INTRODUCED_IN(21);
-long double fabsl(long double) __attribute_const__;
-long double fdiml(long double, long double);
-long double floorl(long double);
-long double fmal(long double, long double, long double) __INTRODUCED_IN(21) __VERSIONER_NO_GUARD;
-long double fmaxl(long double, long double) __attribute_const__;
-long double fminl(long double, long double) __attribute_const__;
-long double fmodl(long double, long double) __INTRODUCED_IN(21);
-long double frexpl(long double value, int*)
+long double acoshl(long double __x) __INTRODUCED_IN(21);
+long double acosl(long double __x) __INTRODUCED_IN(21);
+long double asinhl(long double __x) __INTRODUCED_IN(21);
+long double asinl(long double __x) __INTRODUCED_IN(21);
+long double atan2l(long double __y, long double __x) __INTRODUCED_IN(21);
+long double atanhl(long double __x) __INTRODUCED_IN(21);
+long double atanl(long double __x) __INTRODUCED_IN(21);
+long double cbrtl(long double __x) __INTRODUCED_IN(21);
+long double ceill(long double __x);
+long double copysignl(long double __value, long double __sign) __attribute_const__;
+long double coshl(long double __x) __INTRODUCED_IN(21);
+long double cosl(long double __x) __INTRODUCED_IN(21);
+long double erfcl(long double __x) __INTRODUCED_IN(21);
+long double erfl(long double __x) __INTRODUCED_IN(21);
+long double exp2l(long double __x) __INTRODUCED_IN(21);
+long double expl(long double __x) __INTRODUCED_IN(21);
+long double expm1l(long double __x) __INTRODUCED_IN(21);
+long double fabsl(long double __x) __attribute_const__;
+long double fdiml(long double __x, long double __y);
+long double floorl(long double __x);
+long double fmal(long double __x, long double __y, long double __z) __INTRODUCED_IN(21) __VERSIONER_NO_GUARD;
+long double fmaxl(long double __x, long double __y) __attribute_const__;
+long double fminl(long double __x, long double __y) __attribute_const__;
+long double fmodl(long double __x, long double __y) __INTRODUCED_IN(21);
+long double frexpl(long double __x, int* __exponent)
     __INTRODUCED_IN(21) __VERSIONER_NO_GUARD; /* fundamentally !__attribute_const__ */
-long double hypotl(long double, long double) __INTRODUCED_IN(21);
-int ilogbl(long double) __attribute_const__;
-long double ldexpl(long double, int);
-long double lgammal(long double) __INTRODUCED_IN(21);
-long long llrintl(long double) __INTRODUCED_IN(21);
-long long llroundl(long double);
-long double log10l(long double) __INTRODUCED_IN(21);
-long double log1pl(long double) __INTRODUCED_IN(21);
-long double log2l(long double) __INTRODUCED_IN(18);
-long double logbl(long double) __INTRODUCED_IN(18);
-long double logl(long double) __INTRODUCED_IN(21);
-long lrintl(long double) __INTRODUCED_IN(21);
-long lroundl(long double);
-long double modfl(long double, long double*) __INTRODUCED_IN(21); /* fundamentally !__attribute_const__ */
-long double nanl(const char*) __attribute_const__ __INTRODUCED_IN(13);
-long double nearbyintl(long double) __INTRODUCED_IN(21);
-long double nextafterl(long double, long double) __INTRODUCED_IN(21) __VERSIONER_NO_GUARD;
-double nexttoward(double, long double) __INTRODUCED_IN(18) __VERSIONER_NO_GUARD;
-float nexttowardf(float, long double);
-long double nexttowardl(long double, long double) __INTRODUCED_IN(18) __VERSIONER_NO_GUARD;
-long double powl(long double, long double) __INTRODUCED_IN(21);
-long double remainderl(long double, long double) __INTRODUCED_IN(21);
-long double remquol(long double, long double, int*) __INTRODUCED_IN(21);
-long double rintl(long double) __INTRODUCED_IN(21);
-long double roundl(long double);
-long double scalblnl(long double, long) __INTRODUCED_IN_X86(18) __VERSIONER_NO_GUARD;
-long double scalbnl(long double, int);
-long double sinhl(long double) __INTRODUCED_IN(21);
-long double sinl(long double) __INTRODUCED_IN(21);
-long double sqrtl(long double) __INTRODUCED_IN(21);
-long double tanhl(long double) __INTRODUCED_IN(21);
-long double tanl(long double) __INTRODUCED_IN(21);
-long double tgammal(long double) __INTRODUCED_IN(21);
-long double truncl(long double);
+long double hypotl(long double __x, long double __y) __INTRODUCED_IN(21);
+int ilogbl(long double __x) __attribute_const__;
+long double ldexpl(long double __x, int __exponent);
+long double lgammal(long double __x) __INTRODUCED_IN(21);
+long long llrintl(long double __x) __INTRODUCED_IN(21);
+long long llroundl(long double __x);
+long double log10l(long double __x) __INTRODUCED_IN(21);
+long double log1pl(long double __x) __INTRODUCED_IN(21);
+long double log2l(long double __x) __INTRODUCED_IN(18);
+long double logbl(long double __x) __INTRODUCED_IN(18);
+long double logl(long double __x) __INTRODUCED_IN(21);
+long lrintl(long double __x) __INTRODUCED_IN(21);
+long lroundl(long double __x);
+long double modfl(long double __x, long double* __integral_part) __INTRODUCED_IN(21); /* fundamentally !__attribute_const__ */
+long double nanl(const char* __kind) __attribute_const__ __INTRODUCED_IN(13);
+long double nearbyintl(long double __x) __INTRODUCED_IN(21);
+long double nextafterl(long double __x, long double __y) __INTRODUCED_IN(21) __VERSIONER_NO_GUARD;
+double nexttoward(double __x, long double __y) __INTRODUCED_IN(18) __VERSIONER_NO_GUARD;
+float nexttowardf(float __x, long double __y);
+long double nexttowardl(long double __x, long double __y) __INTRODUCED_IN(18) __VERSIONER_NO_GUARD;
+long double powl(long double __x, long double __y) __INTRODUCED_IN(21);
+long double remainderl(long double __x, long double __y) __INTRODUCED_IN(21);
+long double remquol(long double __x, long double __y, int* __quotient_bits) __INTRODUCED_IN(21);
+long double rintl(long double __x) __INTRODUCED_IN(21);
+long double roundl(long double __x);
+long double scalblnl(long double __x, long __exponent) __INTRODUCED_IN_X86(18) __VERSIONER_NO_GUARD;
+long double scalbnl(long double __x, int __exponent);
+long double sinhl(long double __x) __INTRODUCED_IN(21);
+long double sinl(long double __x) __INTRODUCED_IN(21);
+long double sqrtl(long double __x) __INTRODUCED_IN(21);
+long double tanhl(long double __x) __INTRODUCED_IN(21);
+long double tanl(long double __x) __INTRODUCED_IN(21);
+long double tgammal(long double __x) __INTRODUCED_IN(21);
+long double truncl(long double __x);
 
-double j0(double);
-double j1(double);
-double jn(int, double);
-double y0(double);
-double y1(double);
-double yn(int, double);
+double j0(double __x);
+double j1(double __x);
+double jn(int __n, double __x);
+double y0(double __x);
+double y1(double __x);
+double yn(int __n, double __x);
 
 #define M_E		2.7182818284590452354	/* e */
 #define M_LOG2E		1.4426950408889634074	/* log 2e */
@@ -336,29 +336,29 @@
 #define MAXFLOAT	((float)3.40282346638528860e+38)
 
 #if defined(__USE_BSD) || defined(__USE_GNU)
-double gamma(double);
-double scalb(double, double);
-double drem(double, double);
-int finite(double) __attribute_const__;
-int isnanf(float) __attribute_const__;
-double gamma_r(double, int*);
-double lgamma_r(double, int*);
-double significand(double);
-long double lgammal_r(long double, int*) __INTRODUCED_IN(23);
-long double significandl(long double) __INTRODUCED_IN(21);
-float dremf(float, float);
-int finitef(float) __attribute_const__;
-float gammaf(float);
-float j0f(float);
-float j1f(float);
-float jnf(int, float);
-float scalbf(float, float);
-float y0f(float);
-float y1f(float);
-float ynf(int, float);
-float gammaf_r(float, int *);
-float lgammaf_r(float, int *);
-float significandf(float);
+double gamma(double __x);
+double scalb(double __x, double __exponent);
+double drem(double __x, double __y);
+int finite(double __x) __attribute_const__;
+int isnanf(float __x) __attribute_const__;
+double gamma_r(double __x, int* __sign);
+double lgamma_r(double __x, int* __sign);
+double significand(double __x);
+long double lgammal_r(long double __x, int* __sign) __INTRODUCED_IN(23);
+long double significandl(long double __x) __INTRODUCED_IN(21);
+float dremf(float __x, float __y);
+int finitef(float __x) __attribute_const__;
+float gammaf(float __x);
+float j0f(float __x);
+float j1f(float __x);
+float jnf(int __n, float __x);
+float scalbf(float __x, float __exponent);
+float y0f(float __x);
+float y1f(float __x);
+float ynf(int __n, float __x);
+float gammaf_r(float __x, int* __sign);
+float lgammaf_r(float __x, int* __sign);
+float significandf(float __x);
 #endif
 
 #if defined(__USE_GNU)
@@ -375,11 +375,11 @@
 #define M_2_SQRTPIl     1.128379167095512573896158903121545172L /* 2/sqrt(pi) */
 #define M_SQRT2l        1.414213562373095048801688724209698079L /* sqrt(2) */
 #define M_SQRT1_2l      0.707106781186547524400844362104849039L /* 1/sqrt(2) */
-void sincos(double, double*, double*);
-void sincosf(float, float*, float*);
-void sincosl(long double, long double*, long double*);
+void sincos(double __x, double* __sin, double* __cos);
+void sincosf(float __x, float* __sin, float* __cos);
+void sincosl(long double __x, long double* __sin, long double* __cos);
 #endif
 
 __END_DECLS
 
-#endif /* !_MATH_H_ */
+#endif