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| author | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2009-11-19 18:49:24 +0100 |
|---|---|---|
| committer | Bernhard Reutner-Fischer <rep.dot.nop@gmail.com> | 2009-11-19 18:49:24 +0100 |
| commit | 4c5c4502d0d6ae2e6cd495b1084a6c9d34a8cab3 (patch) | |
| tree | ca46b8b1aa596301f85eba10cb590d93ac2abb17 | |
| parent | 3982dd7ff251ee502ec6b5a75680a09ec60b3428 (diff) | |
DO_XSI_MATH: add config knob
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
| -rw-r--r-- | extra/Configs/Config.in.arch | 11 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/bits/mathcalls.h | 2 | ||||
| -rw-r--r-- | libm/Makefile.in | 8 |
3 files changed, 19 insertions, 2 deletions
diff --git a/extra/Configs/Config.in.arch b/extra/Configs/Config.in.arch index 76ab0022f..8a02cb1a2 100644 --- a/extra/Configs/Config.in.arch +++ b/extra/Configs/Config.in.arch @@ -160,6 +160,17 @@ config DO_C99_MATH If your applications require the newer C99 math library functions, then answer Y. +config DO_XSI_MATH + bool "Enable XSI math extensions to the ISO C standard (bessel)" + depends on UCLIBC_HAS_FLOATS + default n + help + X/Open System Interfaces extensions to ISO C math functions + (differential equation functions): + + j0, j1, jn - Bessel functions of the first kind + y0, y1, yn - Bessel functions of the second kind + config UCLIBC_HAS_FENV bool "Enable C99 Floating-point environment" depends on UCLIBC_HAS_FLOATS diff --git a/libc/sysdeps/linux/common/bits/mathcalls.h b/libc/sysdeps/linux/common/bits/mathcalls.h index 811738238..df2e21cc8 100644 --- a/libc/sysdeps/linux/common/bits/mathcalls.h +++ b/libc/sysdeps/linux/common/bits/mathcalls.h @@ -244,6 +244,7 @@ __END_NAMESPACE_C99 /* Return nonzero if VALUE is not a number. */ __MATHDECL_PRIV (int,isnan,, (_Mdouble_ __value), (__const__)) +# ifdef __DO_XSI_MATH__ /* Bessel functions. */ __MATHCALL (j0,, (_Mdouble_)) __MATHCALL (j1,, (_Mdouble_)) @@ -251,6 +252,7 @@ __MATHCALL (jn,, (int, _Mdouble_)) __MATHCALL (y0,, (_Mdouble_)) __MATHCALL (y1,, (_Mdouble_)) __MATHCALL (yn,, (int, _Mdouble_)) +# endif #endif diff --git a/libm/Makefile.in b/libm/Makefile.in index d17d64fae..56b2d76c3 100644 --- a/libm/Makefile.in +++ b/libm/Makefile.in @@ -56,8 +56,8 @@ LD_MSRC := ldouble_wrappers.c ifeq ($(DO_C99_MATH),y) libm_CSRC := \ e_acos.c e_acosh.c e_asin.c e_atan2.c e_atanh.c e_cosh.c \ - e_exp.c e_fmod.c e_hypot.c e_j0.c \ - e_j1.c e_jn.c e_lgamma_r.c e_log.c e_log2.c e_log10.c \ + e_exp.c e_fmod.c e_hypot.c \ + e_lgamma_r.c e_log.c e_log2.c e_log10.c \ e_pow.c e_remainder.c e_rem_pio2.c e_scalb.c e_sinh.c \ e_sqrt.c k_cos.c k_rem_pio2.c k_sin.c k_standard.c k_tan.c \ s_asinh.c s_atan.c s_cbrt.c s_ceil.c s_copysign.c s_cos.c \ @@ -209,6 +209,10 @@ libm_CSRC := \ FL_MOBJ := sqrtf.o endif +ifeq ($(DO_XSI_MATH),y) +libm_CSRC += e_j0.c e_j1.c e_jn.c +endif + # assume that arch specific versions are provided as single sources/objects ifeq ($(UCLIBC_HAS_FPU),y) ifeq ($(DO_C99_MATH),y) |