libm/Makefile.in: reformat the list of wrappers

 so that it is easier to modify, sort, etc;
 use __ in filenames of wrappers which wrap __functions
 (it may be useful to have function and file names ALWAYS match);
 remove names of not implemented wrappers (it was generating useless
 empty .o files).
libm/ldouble_wrappers.c: comment out the wrapper which is
 not compiled anyway
test/math/compile_test.c: improve this test, it was optimizing out some calls,
 and we don't want that.

No actual code changes.

libm/Makefile.in

@@ -71,25 +71,128 @@ libm_CSRC := \
 	s_isnan.c s_isnanf.c s_isinf.c s_isinff.c s_finitef.c \
 	s_fdim.c s_fma.c s_fmax.c s_fmin.c \
 	s_remquo.c w_exp2.c
+
+# Not implemented [yet?], see comment in float_wrappers.c:
+# exp2f.o fdimf.o fmaf.o fmaxf.o fminf.o log2f.o
+# nearbyintf.o remquof.o scalblnf.o tgammaf.o
 FL_MOBJ := \
-	acosf.o acoshf.o asinf.o asinhf.o atan2f.o atanf.o atanhf.o cbrtf.o \
-	ceilf.o copysignf.o cosf.o coshf.o erfcf.o erff.o exp2f.o expf.o \
-	expm1f.o fabsf.o fdimf.o floorf.o fmaf.o fmaxf.o fminf.o fmodf.o \
-	frexpf.o hypotf.o ilogbf.o ldexpf.o lgammaf.o llroundf.o log10f.o \
-	log1pf.o log2f.o logbf.o logf.o lrintf.o lroundf.o modff.o nearbyintf.o \
-	powf.o remainderf.o remquof.o rintf.o roundf.o \
-	scalblnf.o scalbnf.o sinf.o sinhf.o sqrtf.o tanf.o tanhf.o \
-	tgammaf.o truncf.o cargf.o llrintf.o scalbf.o gammaf.o significandf.o
-
-LD_MOBJ := acoshl.o acosl.o asinhl.o asinl.o atan2l.o atanhl.o atanl.o cargl.o cbrtl.o \
-	ceill.o copysignl.o coshl.o cosl.o erfcl.o erfl.o exp2l.o expl.o \
-	expm1l.o fabsl.o finitel.o fdiml.o floorl.o fmal.o fmaxl.o fminl.o fmodl.o fpclassifyl.o \
-	frexpl.o gammal.o hypotl.o ilogbl.o isinfl.o isnanl.o ldexpl.o lgammal.o llrintl.o \
-	llroundl.o log10l.o log1pl.o log2l.o logbl.o logl.o lrintl.o lroundl.o \
-	modfl.o nearbyintl.o nextafterl.o XXXnexttowardl.o powl.o remainderl.o \
-	remquol.o rintl.o roundl.o scalblnl.o scalbnl.o __signbitl.o sinhl.o sinl.o sqrtl.o \
-	tanhl.o tanl.o tgammal.o truncl.o significandl.o
+	acosf.o \
+	acoshf.o \
+	asinf.o \
+	asinhf.o \
+	atan2f.o \
+	atanf.o \
+	atanhf.o \
+	cargf.o \
+	cbrtf.o \
+	ceilf.o \
+	copysignf.o \
+	cosf.o \
+	coshf.o \
+	erfcf.o \
+	erff.o \
+	expf.o \
+	expm1f.o \
+	fabsf.o \
+	floorf.o \
+	fmodf.o \
+	frexpf.o \
+	gammaf.o \
+	hypotf.o \
+	ilogbf.o \
+	ldexpf.o \
+	lgammaf.o \
+	llrintf.o \
+	llroundf.o \
+	log10f.o \
+	log1pf.o \
+	logbf.o \
+	logf.o \
+	lrintf.o \
+	lroundf.o \
+	modff.o \
+	powf.o \
+	remainderf.o \
+	rintf.o \
+	roundf.o \
+	scalbf.o \
+	scalbnf.o \
+	significandf.o \
+	sinf.o \
+	sinhf.o \
+	sqrtf.o \
+	tanf.o \
+	tanhf.o \
+	truncf.o \
+
+# Not implemented [yet?]: nexttowardl.o
+LD_MOBJ := \
+	__finitel.o \
+	__fpclassifyl.o \
+	__isinfl.o \
+	__isnanl.o \
+	__signbitl.o \
+	acoshl.o \
+	acosl.o \
+	asinhl.o \
+	asinl.o \
+	atan2l.o \
+	atanhl.o \
+	atanl.o \
+	cargl.o \
+	cbrtl.o \
+	ceill.o \
+	copysignl.o \
+	coshl.o \
+	cosl.o \
+	erfcl.o \
+	erfl.o \
+	exp2l.o \
+	expl.o \
+	expm1l.o \
+	fabsl.o \
+	fdiml.o \
+	floorl.o \
+	fmal.o \
+	fmaxl.o \
+	fminl.o \
+	fmodl.o \
+	frexpl.o \
+	gammal.o \
+	hypotl.o \
+	ilogbl.o \
+	ldexpl.o \
+	lgammal.o \
+	llrintl.o \
+	llroundl.o \
+	log10l.o \
+	log1pl.o \
+	log2l.o \
+	logbl.o \
+	logl.o \
+	lrintl.o \
+	lroundl.o \
+	modfl.o \
+	nearbyintl.o \
+	nextafterl.o \
+	powl.o \
+	remainderl.o \
+	remquol.o \
+	rintl.o \
+	roundl.o \
+	scalblnl.o \
+	scalbnl.o \
+	significandl.o \
+	sinhl.o \
+	sinl.o \
+	sqrtl.o \
+	tanhl.o \
+	tanl.o \
+	tgammal.o \
+	truncl.o \
+
 else
+
 # This list of math functions was taken from POSIX/IEEE 1003.1b-1993
 libm_CSRC := \
 	s_atan.c s_ceil.c s_cos.c \

libm/ldouble_wrappers.c

@@ -401,11 +401,13 @@ long double nextafterl (long double x, long double y)
 }
 #endif
 
-#ifdef L_nexttowardl
+/* Disabled in Makefile.in */
+#if 0 /* def L_nexttowardl */
 long double nexttowardl (long double x, long double y)
 {
 	return (long double) nexttoward( (double)x, (double)y );
 }
+libm_hidden_def(nexttowardl)
 #endif
 
 #ifdef L_powl
@@ -492,12 +494,12 @@ long double significandl(long double x)
 
 #ifdef __DO_C99_MATH__
 
-#ifdef L_fpclassifyl
+#ifdef L___fpclassifyl
 int_WRAPPER1(__fpclassify)
 libm_hidden_def(__fpclassifyl)
 #endif
 
-#ifdef L_finitel
+#ifdef L___finitel
 int_WRAPPER1(__finite)
 libm_hidden_def(__finitel)
 #endif
@@ -507,12 +509,12 @@ int_WRAPPER1(__signbit)
 libm_hidden_def(__signbitl)
 #endif
 
-#ifdef L_isnanl
+#ifdef L___isnanl
 int_WRAPPER1(__isnan)
 libm_hidden_def(__isnanl)
 #endif
 
-#ifdef L_isinfl
+#ifdef L___isinfl
 int_WRAPPER1(__isinf)
 libm_hidden_def(__isinfl)
 #endif

test/math/compile_test.c

@@ -1,68 +1,70 @@
 #include <math.h>
 
-void testl(long double long_double_x, int int_x, long long_x)
+int testl(long double long_double_x, int int_x, long long_x)
 {
-__finitel(long_double_x);
-__fpclassifyl(long_double_x);
-__isinfl(long_double_x);
-__isnanl(long_double_x);
-__signbitl(long_double_x);
-acoshl(long_double_x);
-acosl(long_double_x);
-asinhl(long_double_x);
-asinl(long_double_x);
-atan2l(long_double_x, long_double_x);
-atanhl(long_double_x);
-atanl(long_double_x);
-cbrtl(long_double_x);
-ceill(long_double_x);
-copysignl(long_double_x, long_double_x);
-coshl(long_double_x);
-cosl(long_double_x);
-erfcl(long_double_x);
-erfl(long_double_x);
-exp2l(long_double_x);
-expl(long_double_x);
-expm1l(long_double_x);
-fabsl(long_double_x);
-fdiml(long_double_x, long_double_x);
-floorl(long_double_x);
-fmal(long_double_x, long_double_x, long_double_x);
-fmaxl(long_double_x, long_double_x);
-fminl(long_double_x, long_double_x);
-fmodl(long_double_x, long_double_x);
-frexpl(long_double_x, &int_x);
-hypotl(long_double_x, long_double_x);
-ilogbl(long_double_x);
-ldexpl(long_double_x, int_x);
-lgammal(long_double_x);
-llrintl(long_double_x);
-llroundl(long_double_x);
-log10l(long_double_x);
-log1pl(long_double_x);
-log2l(long_double_x);
-logbl(long_double_x);
-logl(long_double_x);
-lrintl(long_double_x);
-lroundl(long_double_x);
-modfl(long_double_x, &long_double_x);
-nearbyintl(long_double_x);
-nextafterl(long_double_x, long_double_x);
-nexttowardl(long_double_x, long_double_x);
-powl(long_double_x, long_double_x);
-remainderl(long_double_x, long_double_x);
-remquol(long_double_x, long_double_x, &int_x);
-rintl(long_double_x);
-roundl(long_double_x);
-scalblnl(long_double_x, long_x);
-scalbnl(long_double_x, int_x);
-sinhl(long_double_x);
-sinl(long_double_x);
-sqrtl(long_double_x);
-tanhl(long_double_x);
-tanl(long_double_x);
-tgammal(long_double_x);
-truncl(long_double_x);
+int r = 0;
+r += __finitel(long_double_x);
+r += __fpclassifyl(long_double_x);
+r += __isinfl(long_double_x);
+r += __isnanl(long_double_x);
+r += __signbitl(long_double_x);
+r += acoshl(long_double_x);
+r += acosl(long_double_x);
+r += asinhl(long_double_x);
+r += asinl(long_double_x);
+r += atan2l(long_double_x, long_double_x);
+r += atanhl(long_double_x);
+r += atanl(long_double_x);
+r += cbrtl(long_double_x);
+r += ceill(long_double_x);
+r += copysignl(long_double_x, long_double_x);
+r += coshl(long_double_x);
+r += cosl(long_double_x);
+r += erfcl(long_double_x);
+r += erfl(long_double_x);
+r += exp2l(long_double_x);
+r += expl(long_double_x);
+r += expm1l(long_double_x);
+r += fabsl(long_double_x);
+r += fdiml(long_double_x, long_double_x);
+r += floorl(long_double_x);
+r += fmal(long_double_x, long_double_x, long_double_x);
+r += fmaxl(long_double_x, long_double_x);
+r += fminl(long_double_x, long_double_x);
+r += fmodl(long_double_x, long_double_x);
+r += frexpl(long_double_x, &int_x);
+r += hypotl(long_double_x, long_double_x);
+r += ilogbl(long_double_x);
+r += ldexpl(long_double_x, int_x);
+r += lgammal(long_double_x);
+r += llrintl(long_double_x);
+r += llroundl(long_double_x);
+r += log10l(long_double_x);
+r += log1pl(long_double_x);
+r += log2l(long_double_x);
+r += logbl(long_double_x);
+r += logl(long_double_x);
+r += lrintl(long_double_x);
+r += lroundl(long_double_x);
+r += modfl(long_double_x, &long_double_x);
+r += nearbyintl(long_double_x);
+r += nextafterl(long_double_x, long_double_x);
+/* r += nexttowardl(long_double_x, long_double_x); - uclibc doesn't provide this [yet?] */
+r += powl(long_double_x, long_double_x);
+r += remainderl(long_double_x, long_double_x);
+r += remquol(long_double_x, long_double_x, &int_x);
+r += rintl(long_double_x);
+r += roundl(long_double_x);
+r += scalblnl(long_double_x, long_x);
+r += scalbnl(long_double_x, int_x);
+r += sinhl(long_double_x);
+r += sinl(long_double_x);
+r += sqrtl(long_double_x);
+r += tanhl(long_double_x);
+r += tanl(long_double_x);
+r += tgammal(long_double_x);
+r += truncl(long_double_x);
+return r;
 }
 
 int main(int argc, char **argv)