build: Build mlibc + add distclean target

Signed-off-by: Ian Moffett <ian@osmora.org>

1 files changed, 0 insertions, 111 deletions

diff --git a/lib/mlibc/options/ansi/musl-generic-math/expm1f.c b/lib/mlibc/options/ansi/musl-generic-math/expm1f.c
deleted file mode 100644
index 297e0b4..0000000
--- a/lib/mlibc/options/ansi/musl-generic-math/expm1f.c
+++ /dev/null
@@ -1,111 +0,0 @@
-/* origin: FreeBSD /usr/src/lib/msun/src/s_expm1f.c */
-/*
- * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
- */
-/*
- * ====================================================
- * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
- *
- * Developed at SunPro, a Sun Microsystems, Inc. business.
- * Permission to use, copy, modify, and distribute this
- * software is freely granted, provided that this notice
- * is preserved.
- * ====================================================
- */
-
-#include "libm.h"
-
-static const float
-o_threshold = 8.8721679688e+01, /* 0x42b17180 */
-ln2_hi      = 6.9313812256e-01, /* 0x3f317180 */
-ln2_lo      = 9.0580006145e-06, /* 0x3717f7d1 */
-invln2      = 1.4426950216e+00, /* 0x3fb8aa3b */
-/*
- * Domain [-0.34568, 0.34568], range ~[-6.694e-10, 6.696e-10]:
- * |6 / x * (1 + 2 * (1 / (exp(x) - 1) - 1 / x)) - q(x)| < 2**-30.04
- * Scaled coefficients: Qn_here = 2**n * Qn_for_q (see s_expm1.c):
- */
-Q1 = -3.3333212137e-2, /* -0x888868.0p-28 */
-Q2 =  1.5807170421e-3; /*  0xcf3010.0p-33 */
-
-float expm1f(float x)
-{
-	float_t y,hi,lo,c,t,e,hxs,hfx,r1,twopk;
-	union {float f; uint32_t i;} u = {x};
-	uint32_t hx = u.i & 0x7fffffff;
-	int k, sign = u.i >> 31;
-
-	/* filter out huge and non-finite argument */
-	if (hx >= 0x4195b844) {  /* if |x|>=27*ln2 */
-		if (hx > 0x7f800000)  /* NaN */
-			return x;
-		if (sign)
-			return -1;
-		if (x > o_threshold) {
-			x *= 0x1p127f;
-			return x;
-		}
-	}
-
-	/* argument reduction */
-	if (hx > 0x3eb17218) {           /* if  |x| > 0.5 ln2 */
-		if (hx < 0x3F851592) {       /* and |x| < 1.5 ln2 */
-			if (!sign) {
-				hi = x - ln2_hi;
-				lo = ln2_lo;
-				k =  1;
-			} else {
-				hi = x + ln2_hi;
-				lo = -ln2_lo;
-				k = -1;
-			}
-		} else {
-			k  = invln2*x + (sign ? -0.5f : 0.5f);
-			t  = k;
-			hi = x - t*ln2_hi;      /* t*ln2_hi is exact here */
-			lo = t*ln2_lo;
-		}
-		x = hi-lo;
-		c = (hi-x)-lo;
-	} else if (hx < 0x33000000) {  /* when |x|<2**-25, return x */
-		if (hx < 0x00800000)
-			FORCE_EVAL(x*x);
-		return x;
-	} else
-		k = 0;
-
-	/* x is now in primary range */
-	hfx = 0.5f*x;
-	hxs = x*hfx;
-	r1 = 1.0f+hxs*(Q1+hxs*Q2);
-	t  = 3.0f - r1*hfx;
-	e  = hxs*((r1-t)/(6.0f - x*t));
-	if (k == 0)  /* c is 0 */
-		return x - (x*e-hxs);
-	e  = x*(e-c) - c;
-	e -= hxs;
-	/* exp(x) ~ 2^k (x_reduced - e + 1) */
-	if (k == -1)
-		return 0.5f*(x-e) - 0.5f;
-	if (k == 1) {
-		if (x < -0.25f)
-			return -2.0f*(e-(x+0.5f));
-		return 1.0f + 2.0f*(x-e);
-	}
-	u.i = (0x7f+k)<<23;  /* 2^k */
-	twopk = u.f;
-	if (k < 0 || k > 56) {   /* suffice to return exp(x)-1 */
-		y = x - e + 1.0f;
-		if (k == 128)
-			y = y*2.0f*0x1p127f;
-		else
-			y = y*twopk;
-		return y - 1.0f;
-	}
-	u.i = (0x7f-k)<<23;  /* 2^-k */
-	if (k < 23)
-		y = (x-e+(1-u.f))*twopk;
-	else
-		y = (x-(e+u.f)+1)*twopk;
-	return y;
-}