math/Makefile

   1 # Copyright (C) 1996, 1997 Free Software Foundation, Inc.
   2 # This file is part of the GNU C Library.
   3
   4 # The GNU C Library is free software; you can redistribute it and/or
   5 # modify it under the terms of the GNU Library General Public License as
   6 # published by the Free Software Foundation; either version 2 of the
   7 # License, or (at your option) any later version.
   8
   9 # The GNU C Library is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12 # Library General Public License for more details.
  13
  14 # You should have received a copy of the GNU Library General Public
  15 # License along with the GNU C Library; see the file COPYING.LIB.  If not,
  16 # write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  17 # Boston, MA 02111-1307, USA.
  18
  19 # Makefile for the math library.
  20
  21 subdir          := math
  22
  23 # Installed header files.
  24 headers         := math.h mathcalls.h __math.h huge_val.h nan.h         \
  25                    fpu_control.h complex.h cmathcalls.h fenv.h          \
  26                    fenvbits.h
  27
  28 # Internal header files.
  29 distribute      := math_private.h machine/asm.h machine/endian.h
  30
  31 # FPU support code.
  32 aux             := fpu_control setfpucw
  33
  34 # Build the -lm library.
  35
  36 extra-libs      := libm
  37 extra-libs-others = $(extra-libs)
  38
  39 libm-support = k_standard s_lib_version s_matherr s_signgam             \
  40                s_rinttol s_rinttoll s_roundtol s_roundtoll              \
  41                fclrexcpt fgetexcptflg fraiseexcpt fsetexcptflg          \
  42                ftestexcept fegetround fesetround fegetenv feholdexcpt   \
  43                fesetenv feupdateenv
  44 libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod  \
  45              e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow      \
  46              e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt k_cos         \
  47              k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt               \
  48              s_ceil s_copysign s_cos s_erf s_expm1 s_fabs s_finite      \
  49              s_floor s_frexp s_ilogb s_ldexp s_log1p s_logb             \
  50              s_modf s_nextafter s_rint s_scalbn s_significand           \
  51              s_sin s_tan s_tanh w_acos w_acosh w_asin                   \
  52              w_atan2 w_atanh w_cosh w_drem w_exp w_fmod w_gamma         \
  53              w_gamma_r w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r       \
  54              w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt      \
  55              s_signbit s_fpclassify s_fmax s_fmin s_fdim s_nan s_trunc  \
  56              s_remquo s_log2 s_exp2 s_round s_nearbyint s_sincos        \
  57              conj cimag creal cabs carg s_cexp s_csinh s_ccosh s_clog   \
  58              s_catan s_casin s_ccos s_csin s_ctan s_ctanh s_cacos       \
  59              s_casinh s_cacosh s_catanh s_csqrt s_cpow s_cproj
  60 libm-routines = $(libm-support) $(libm-calls) \
  61                 $(patsubst %_rf,%f_r,$(libm-calls:=f))  \
  62                 $(long-m-$(long-double-fcts))
  63 long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l))
  64 long-m-yes = $(long-m-routines)
  65 distribute += $(long-m-yes:=.c)
  66
  67 # These functions are in libc instead of libm because __printf_fp
  68 # calls them, so any program using printf will need them linked in,
  69 # and we don't want to have to link every program with -lm.
  70 calls = s_isinf s_isnan s_finite s_copysign s_modf s_scalbn s_frexp s_ldexp
  71 routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts))
  72 long-c-yes = $(calls:=l)
  73 distribute += $(long-c-yes:=.c)
  74
  75 # Rules for the test suite.
  76 tests = test-float test-double $(test-longdouble-$(long-double-fcts))
  77 # We do the `long double' tests only if this data type is available and
  78 # distrinct from `double'.
  79 #
  80 # XXX This test is disabled for now since the functions are too buggy.
  81 #test-longdouble-yes = test-longdouble
  82
  83 CFLAGS-test-float.c = -fno-inline
  84 CFLAGS-test-double.c = -fno-inline
  85 CFLAGS-test-longdouble.c = -fno-inline
  86 LDLIBS-test-float = libm
  87 LDLIBS-test-double = libm
  88 LDLIBS-test-longdouble = libm
  89
  90 distribute += libm-test.c
  91
  92
  93 # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode
  94 # for error handling in the -lm functions.
  95 install-lib += libieee.a
  96 non-lib.a += libieee.a
  97 extra-objs += libieee.a ieee-math.o
  98 distribute += ieee-math.c
  99
 100 include ../Rules
 101
 102
 103 # This file defines the default _LIB_VERSION variable that controls
 104 # the error return conventions for the math functions.
 105 CPPFLAGS-s_lib_version.c := -D_POSIX_MODE
 106
 107 # We don't want the fdlibm code to use the inline math functions,
 108 # only the fdlibm code.
 109 CPPFLAGS += -D__NO_MATH_INLINES
 110
 111 ifneq ($(long-double-fcts),yes)
 112 # The `double' and `long double' types are the same on this machine.
 113 # We won't compile the `long double' code at all.  Tell the `double' code
 114 # to define aliases for the `FUNCl' names.  To avoid type conflicts in
 115 # defining those aliases, tell <math.h> to declare the `FUNCl' names with
 116 # `double' instead of `long double'.
 117 CPPFLAGS += -DNO_LONG_DOUBLE -D_Mlong_double_=double
 118 endif
 119
 120 # The fdlibm code generates a lot of these warnings but is otherwise clean.
 121 override CFLAGS += -Wno-uninitialized -Wno-write-strings
 122
 123 # The -lieee library is actually an object file.
 124 # The module just defines the _LIB_VERSION_ variable.
 125 # It's not a library to make sure it is linked in instead of s_lib_version.o.
 126 $(objpfx)libieee.a: $(objpfx)ieee-math.o
 127         rm -f $@
 128         ln $< $@
 129
 130 ifeq ($(build-shared),yes)
 131 $(addprefix $(objpfx),$(tests)): $(objpfx)libm.so$(libm.so-version)
 132 else
 133 $(addprefix $(objpfx),$(tests)): $(objpfx)libm.a
 134 endif