glibc/sysdeps/ieee754/ldbl-opt/Makefile
Joseph Myers 423c2b9d08 Add fromfp functions.
TS 18661-1 defines fromfp functions (fromfp, fromfpx, ufromfp,
ufromfpx, and float and long double variants) to convert from
floating-point to an integer type with any signedness and any given
width up to that of intmax_t, in any of the five IEEE rounding modes
(the usual four for binary floating point, plus rounding to nearest
with ties rounding away from zero), with control of whether in-range
non-integer values should result in the "inexact" exception being
raised.  This patch implements these functions for glibc.

These implementations are (apart from raising exceptions) pure integer
implementations; it's entirely possible optimized versions could be
devised for some architectures.  A common math/fromfp.h header
provides various common helper code that can readily be shared between
the implementations for different types.  For each type, the bulk of
the implementation is also shared between the four functions, with
wrappers that define UNSIGNED and INEXACT macros appropriately before
including the main implementation.

As the functions return intmax_t and uintmax_t without math.h being
allowed to expose those typedef names, they are declared using
__intmax_t and __uintmax_t as obtained from <bits/types.h>.

The FP_INT_* rounding direction macros are defined as ascending
integers in the order the names are listed in the TS; I see no
significant value in allowing architectures to vary the values of
them.

The libm-test machinery is duly adapted to handle unsigned int
arguments, and intmax_t and uintmax_t results.  Because each test
input is generally tested for four functions, five rounding modes and
several different widths, the libm-test.inc additions are very large.
Thus, the diffs in the body of this message exclude the libm-test.inc
changes, with the full patch being attached gzipped.  The bulk of the
new tests were generated (expanded from a test input plus rounding
results and information about where it lies in the relevant interval
between integers, to libm-test tests for all relevant combinations of
function, rounding direction and width) by a script that's included in
the patch as math/gen-fromfp-tests.py (input data
math/gen-fromfp-tests-inputs); as an ad hoc script that's not really
expected to be rerun, it's not very polished, but it's at least
plausibly useful for adding any further tests for these functions in
future.  I may split the libm-test tests up by function in future (so
both libm-test.inc and auto-libm-test-out are split into separate
files, and the tests for each function are also built and run
separately), but not for 2.25.

For no obvious reason, adding tgmath tests for the new functions
resulted in -Wuninitialized errors from test-tgmath.c about the
variable i being used uninitialized.  Those errors were correct - the
variable is read by the frexp version in test-tgmath.c (where real
frexp would write through that pointer instead of reading it) - but I
don't know why this patch would result in the pre-existing issue being
newly detected.  The patch initializes the variable to avoid those
errors.

With these changes, glibc 2.25 should have all the library features
from TS 18661-1 other than the functions that round result to narrower
type (and constant rounding directions, but I'm considering those
mainly a compiler feature not a library one).

Tested for x86_64, x86, mips64 and powerpc.

	* math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT)]
	(fromfp): New declaration.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise.
	* math/tgmath.h (__TGMATH_TERNARY_FIRST_REAL_RET_ONLY): New macro.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfp): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfp): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (fromfpx): Likewise.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (ufromfpx): Likewise.
	* math/math.h: Include <bits/types.h>.
	[__GLIBC_USE (IEC_60559_BFP_EXT)] (FP_INT_UPWARD): New enum
	constant and macro.
	(FP_INT_DOWNWARD): Likewise.
	(FP_INT_TOWARDZERO): Likewise.
	(FP_INT_TONEARESTFROMZERO): Likewise.
	(FP_INT_TONEAREST): Likewise.
	* math/Versions (fromfp): New libm symbol at version GLIBC_2.25.
	(fromfpf): Likewise.
	(fromfpl): Likewise.
	(ufromfp): Likewise.
	(ufromfpf): Likewise.
	(ufromfpl): Likewise.
	(fromfpx): Likewise.
	(fromfpxf): Likewise.
	(fromfpxl): Likewise.
	(ufromfpx): Likewise.
	(ufromfpxf): Likewise.
	(ufromfpxl): Likewise.
	* math/Makefile (libm-calls): Add s_fromfpF, s_ufromfpF,
	s_fromfpxF and s_ufromfpxF.
	* math/gen-fromfp-tests.py: New file.
	* math/gen-fromfp-tests-inputs: Likewise.
	* math/libm-test.inc: Include <stdint.h>
	(check_intmax_t): New function.
	(check_uintmax_t): Likewise.
	(struct test_fiu_M_data): New type.
	(struct test_fiu_U_data): Likewise.
	(RUN_TEST_fiu_M): New macro.
	(RUN_TEST_LOOP_fiu_M): Likewise.
	(RUN_TEST_fiu_U): Likewise.
	(RUN_TEST_LOOP_fiu_U): Likewise.
	(fromfp_test_data): New array.
	(fromfp_test): New function.
	(fromfpx_test_data): New array.
	(fromfpx_test): New function.
	(ufromfp_test_data): New array.
	(ufromfp_test): New function.
	(ufromfpx_test_data): New array.
	(ufromfpx_test): New function.
	(main): Call fromfp_test, fromfpx_test, ufromfp_test and
	ufromfpx_test.
	* math/gen-libm-test.pl (parse_args): Handle u, M and U descriptor
	characters.
	* math/test-tgmath-ret.c: Include <stdint.h>.
	(rm): New variable.
	(width): Likewise.
	(CHECK_RET_CONST_TYPE): Take extra arguments and pass them to
	called function.
	(CHECK_RET_CONST_FLOAT): Take extra arguments and pass them to
	CHECK_RET_CONST_TYPE.
	(CHECK_RET_CONST_DOUBLE): Likewise.
	(CHECK_RET_CONST_LDOUBLE): Likewise.
	(CHECK_RET_CONST): Take extra arguments and pass them to calls
	macros.
	(fromfp): New CHECK_RET_CONST call.
	(ufromfp): Likewise.
	(fromfpx): Likewise.
	(ufromfpx): Likewise.
	(do_test): Call check_return_fromfp, check_return_ufromfp,
	check_return_fromfpx and check_return_ufromfpx.
	* math/test-tgmath.c: Include <stdint.h>
	(NCALLS): Increase to 138.
	(F(compile_test)): Initialize i.  Call fromfp functions.
	(F(fromfp)): New function.
	(F(fromfpx)): Likewise.
	(F(ufromfp)): Likewise.
	(F(ufromfpx)): Likewise.
	* manual/arith.texi (Rounding Functions): Document FP_INT_UPWARD,
	FP_INT_DOWNWARD, FP_INT_TOWARDZERO, FP_INT_TONEARESTFROMZERO,
	FP_INT_TONEAREST, fromfp, fromfpf, fromfpl, ufromfp, ufromfpf,
	ufromfpl, fromfpx, fromfpxf, fromfpxl, ufromfpx, ufromfpxf and
	ufromfpxl.
	* manual/libm-err-tab.pl (@all_functions): Add fromfp, fromfpx,
	ufromfp and ufromfpx.
	* math/fromfp.h: New file.
	* sysdeps/ieee754/dbl-64/s_fromfp.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fromfp_main.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_fromfpx.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_ufromfp.c: Likewise.
	* sysdeps/ieee754/dbl-64/s_ufromfpx.c: Likewise.
	* sysdeps/ieee754/flt-32/s_fromfpf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_fromfpf_main.c: Likewise.
	* sysdeps/ieee754/flt-32/s_fromfpxf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_ufromfpf.c: Likewise.
	* sysdeps/ieee754/flt-32/s_ufromfpxf.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fromfpl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_fromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ufromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128/s_ufromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fromfpl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_fromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ufromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-128ibm/s_ufromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fromfpl_main.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_fromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ufromfpl.c: Likewise.
	* sysdeps/ieee754/ldbl-96/s_ufromfpxl.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/Makefile (libnldbl-calls): Add fromfp,
	ufromfp, fromfpx and ufromfpx.
	(CFLAGS-nldbl-fromfp.c): New variable.
	(CFLAGS-nldbl-fromfpx.c): Likewise.
	(CFLAGS-nldbl-ufromfp.c): Likewise.
	(CFLAGS-nldbl-ufromfpx.c): Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-compat.h: Include <stdint.h>.
	* sysdeps/ieee754/ldbl-opt/nldbl-fromfp.c: New file.
	* sysdeps/ieee754/ldbl-opt/nldbl-fromfpx.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ufromfp.c: Likewise.
	* sysdeps/ieee754/ldbl-opt/nldbl-ufromfpx.c: Likewise.
	* sysdeps/nacl/libm.abilist: Update.
	* sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx32/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilegx/tilegx64/libm.abilist:
	Likewise.
	* sysdeps/unix/sysv/linux/tile/tilepro/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise.
	* sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
2016-12-31 00:40:59 +00:00

168 lines
7.2 KiB
Makefile

# The`long double' type is a distinct type we support if
# -mlong-double-128 option is used (or when it becomes a default
# when -mlong-double-64 is not used).
long-double-fcts = yes
ifeq (,$(filter -mlong-double-128,$(sysdep-CFLAGS)))
sysdep-CFLAGS += -mlong-double-128
endif
ifeq ($(subdir),math)
libm-routines += s_nexttowardfd
routines += math_ldbl_opt nldbl-compat
extra-libs += libnldbl
libnldbl-calls = asprintf dprintf fprintf fscanf fwprintf fwscanf iovfscanf \
obstack_printf obstack_vprintf printf scanf snprintf \
sprintf sscanf swprintf swscanf vasprintf vdprintf vfprintf \
vfscanf vfwprintf vfwscanf vprintf vscanf vsnprintf \
vsprintf vsscanf vswprintf vswscanf vwprintf vwscanf \
wprintf wscanf printf_fp printf_size \
fprintf_chk fwprintf_chk printf_chk snprintf_chk sprintf_chk \
swprintf_chk vfprintf_chk vfwprintf_chk vprintf_chk \
vsnprintf_chk vsprintf_chk vswprintf_chk vwprintf_chk \
wprintf_chk asprintf_chk vasprintf_chk dprintf_chk \
vdprintf_chk obstack_printf_chk obstack_vprintf_chk \
syslog syslog_chk vsyslog vsyslog_chk \
strfmon strfmon_l \
strfroml \
strtold strtold_l strtoldint wcstold wcstold_l wcstoldint \
qecvt qfcvt qgcvt qecvt_r qfcvt_r \
isinf isnan finite signbit scalb log2 lgamma_r ceil \
significand acos asin atan atan2 cos sin tan cosh sinh \
tanh acosh asinh atanh exp log log10 exp10 pow10 expm1 \
log1p logb exp2 sqrt cbrt fabs floor j0 j1 y0 y1 erf erfc \
lgamma tgamma gamma rint nearbyint round trunc \
copysign fdim fmax fmin nextafter pow hypot fmod \
remainder ldexp scalbn frexp modf scalbln fma nan sincos \
jn yn ilogb remquo lrint lround llrint llround nexttowardf \
nexttoward conj cacos cacosh casin catan catanh ccos ccosh \
casinh cexp clog cproj csin csinh csqrt ctan ctanh cpow \
cabs carg cimag creal clog10 \
isoc99_scanf isoc99_fscanf isoc99_sscanf \
isoc99_vscanf isoc99_vfscanf isoc99_vsscanf \
isoc99_wscanf isoc99_fwscanf isoc99_swscanf \
isoc99_vwscanf isoc99_vfwscanf isoc99_vswscanf \
nextup nextdown totalorder totalordermag getpayload \
canonicalize setpayload setpayloadsig llogb fmaxmag fminmag \
roundeven fromfp ufromfp fromfpx ufromfpx
libnldbl-routines = $(libnldbl-calls:%=nldbl-%)
libnldbl-inhibit-o = $(object-suffixes)
libnldbl-static-only-routines = $(libnldbl-routines)
extra-objs += $(addsuffix .oS, $(libnldbl-routines))
CFLAGS-nldbl-acos.c = -fno-builtin-acosl
CFLAGS-nldbl-acosh.c = -fno-builtin-acoshl
CFLAGS-nldbl-asin.c = -fno-builtin-asinl
CFLAGS-nldbl-asinh.c = -fno-builtin-asinhl
CFLAGS-nldbl-atan.c = -fno-builtin-atanl
CFLAGS-nldbl-atan2.c = -fno-builtin-atan2l
CFLAGS-nldbl-atanh.c = -fno-builtin-atanhl
CFLAGS-nldbl-cabs.c = -fno-builtin-cabsl
CFLAGS-nldbl-cacos.c = -fno-builtin-cacosl
CFLAGS-nldbl-cacosh.c = -fno-builtin-cacoshl
CFLAGS-nldbl-canonicalize.c = -fno-builtin-canonicalizel
CFLAGS-nldbl-carg.c = -fno-builtin-cargl
CFLAGS-nldbl-casin.c = -fno-builtin-casinl
CFLAGS-nldbl-casinh.c = -fno-builtin-casinhl
CFLAGS-nldbl-catan.c = -fno-builtin-catanl
CFLAGS-nldbl-catanh.c = -fno-builtin-catanhl
CFLAGS-nldbl-cbrt.c = -fno-builtin-cbrtl
CFLAGS-nldbl-ccos.c = -fno-builtin-ccosl
CFLAGS-nldbl-ccosh.c = -fno-builtin-ccoshl
CFLAGS-nldbl-ceil.c = -fno-builtin-ceill
CFLAGS-nldbl-cexp.c = -fno-builtin-cexpl
CFLAGS-nldbl-cimag.c = -fno-builtin-cimagl
CFLAGS-nldbl-clog.c = -fno-builtin-clogl
CFLAGS-nldbl-clog10.c = -fno-builtin-clog10l
CFLAGS-nldbl-conj.c = -fno-builtin-conjl
CFLAGS-nldbl-copysign.c = -fno-builtin-copysignl
CFLAGS-nldbl-cos.c = -fno-builtin-cosl
CFLAGS-nldbl-cosh.c = -fno-builtin-coshl
CFLAGS-nldbl-cpow.c = -fno-builtin-cpowl
CFLAGS-nldbl-cproj.c = -fno-builtin-cprojl
CFLAGS-nldbl-creal.c = -fno-builtin-creall
CFLAGS-nldbl-csin.c = -fno-builtin-csinl
CFLAGS-nldbl-csinh.c = -fno-builtin-csinhl
CFLAGS-nldbl-csqrt.c = -fno-builtin-csqrtl
CFLAGS-nldbl-ctan.c = -fno-builtin-ctanl
CFLAGS-nldbl-ctanh.c = -fno-builtin-ctanhl
CFLAGS-nldbl-erf.c = -fno-builtin-erfl
CFLAGS-nldbl-erfc.c = -fno-builtin-erfcl
CFLAGS-nldbl-exp.c = -fno-builtin-expl
CFLAGS-nldbl-exp10.c = -fno-builtin-exp10l
CFLAGS-nldbl-exp2.c = -fno-builtin-exp2l
CFLAGS-nldbl-expm1.c = -fno-builtin-expm1l
CFLAGS-nldbl-fabs.c = -fno-builtin-fabsl
CFLAGS-nldbl-fdim.c = -fno-builtin-fdiml
CFLAGS-nldbl-finite.c = -fno-builtin-finitel
CFLAGS-nldbl-floor.c = -fno-builtin-floorl
CFLAGS-nldbl-fma.c = -fno-builtin-fmal
CFLAGS-nldbl-fmax.c = -fno-builtin-fmaxl
CFLAGS-nldbl-fmaxmag.c = -fno-builtin-fmaxmagl
CFLAGS-nldbl-fmin.c = -fno-builtin-fminl
CFLAGS-nldbl-fminmag.c = -fno-builtin-fminmagl
CFLAGS-nldbl-fmod.c = -fno-builtin-fmodl
CFLAGS-nldbl-frexp.c = -fno-builtin-frexpl
CFLAGS-nldbl-fromfp.c = -fno-builtin-fromfpl
CFLAGS-nldbl-fromfpx.c = -fno-builtin-fromfpxl
CFLAGS-nldbl-gamma.c = -fno-builtin-gammal
CFLAGS-nldbl-getpayload.c = -fno-builtin-getpayloadl
CFLAGS-nldbl-hypot.c = -fno-builtin-hypotl
CFLAGS-nldbl-ilogb.c = -fno-builtin-ilogbl
CFLAGS-nldbl-isinf.c = -fno-builtin-isinfl
CFLAGS-nldbl-isnan.c = -fno-builtin-isnanl
CFLAGS-nldbl-j0.c = -fno-builtin-j0l
CFLAGS-nldbl-j1.c = -fno-builtin-j1l
CFLAGS-nldbl-jn.c = -fno-builtin-jnl
CFLAGS-nldbl-ldexp.c = -fno-builtin-ldexpl
CFLAGS-nldbl-lgamma.c = -fno-builtin-lgammal
CFLAGS-nldbl-lgamma_r.c = -fno-builtin-lgammal_r
CFLAGS-nldbl-llogb.c = -fno-builtin-llogbl
CFLAGS-nldbl-llrint.c = -fno-builtin-llrintl
CFLAGS-nldbl-llround.c = -fno-builtin-llroundl
CFLAGS-nldbl-log.c = -fno-builtin-logl
CFLAGS-nldbl-log10.c = -fno-builtin-log10l
CFLAGS-nldbl-log1p.c = -fno-builtin-log1pl
CFLAGS-nldbl-log2.c = -fno-builtin-log2l
CFLAGS-nldbl-logb.c = -fno-builtin-logbl
CFLAGS-nldbl-lrint.c = -fno-builtin-lrintl
CFLAGS-nldbl-lround.c = -fno-builtin-lroundl
CFLAGS-nldbl-modf.c = -fno-builtin-modfl
CFLAGS-nldbl-nan.c = -fno-builtin-nanl
CFLAGS-nldbl-nearbyint.c = -fno-builtin-nearbyintl
CFLAGS-nldbl-nextafter.c = -fno-builtin-nextafterl
CFLAGS-nldbl-nextdown.c = -fno-builtin-nextdownl
CFLAGS-nldbl-nexttoward.c = -fno-builtin-nexttoward -fno-builtin-nexttowardl
CFLAGS-nldbl-nexttowardf.c = -fno-builtin-nexttowardf
CFLAGS-nldbl-nextup.c = -fno-builtin-nextupl
CFLAGS-nldbl-pow.c = -fno-builtin-powl
CFLAGS-nldbl-pow10.c = -fno-builtin-pow10l
CFLAGS-nldbl-remainder.c = -fno-builtin-remainderl -fno-builtin-dreml
CFLAGS-nldbl-remquo.c = -fno-builtin-remquol
CFLAGS-nldbl-rint.c = -fno-builtin-rintl
CFLAGS-nldbl-round.c = -fno-builtin-roundl
CFLAGS-nldbl-roundeven.c = -fno-builtin-roundevenl
CFLAGS-nldbl-scalb.c = -fno-builtin-scalbl
CFLAGS-nldbl-scalbln.c = -fno-builtin-scalblnl
CFLAGS-nldbl-scalbn.c = -fno-builtin-scalbnl
CFLAGS-nldbl-setpayload.c = -fno-builtin-setpayloadl
CFLAGS-nldbl-setpayloadsig.c = -fno-builtin-setpayloadsigl
CFLAGS-nldbl-significand.c = -fno-builtin-significandl
CFLAGS-nldbl-sin.c = -fno-builtin-sinl
CFLAGS-nldbl-sincos.c = -fno-builtin-sincosl
CFLAGS-nldbl-sinh.c = -fno-builtin-sinhl
CFLAGS-nldbl-sqrt.c = -fno-builtin-sqrtl
CFLAGS-nldbl-tan.c = -fno-builtin-tanl
CFLAGS-nldbl-tanh.c = -fno-builtin-tanhl
CFLAGS-nldbl-tgamma.c = -fno-builtin-tgammal
CFLAGS-nldbl-totalorder.c = -fno-builtin-totalorderl
CFLAGS-nldbl-totalordermag.c = -fno-builtin-totalordermagl
CFLAGS-nldbl-trunc.c = -fno-builtin-truncl
CFLAGS-nldbl-ufromfp.c = -fno-builtin-ufromfpl
CFLAGS-nldbl-ufromfpx.c = -fno-builtin-ufromfpxl
CFLAGS-nldbl-y0.c = -fno-builtin-y0l
CFLAGS-nldbl-y1.c = -fno-builtin-y1l
CFLAGS-nldbl-yn.c = -fno-builtin-ynl
endif