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1 | # Makefile for the math library. |
2 | ||
3 | # Copyright (C) 1996 Free Software Foundation, Inc. | |
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4 | # This file is part of the GNU C Library. |
5 | ||
6 | # The GNU C Library is free software; you can redistribute it and/or | |
7 | # modify it under the terms of the GNU Library General Public License as | |
8 | # published by the Free Software Foundation; either version 2 of the | |
9 | # License, or (at your option) any later version. | |
10 | ||
11 | # The GNU C Library is distributed in the hope that it will be useful, | |
12 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | # Library General Public License for more details. | |
15 | ||
16 | # You should have received a copy of the GNU Library General Public | |
17 | # License along with the GNU C Library; see the file COPYING.LIB. If | |
18 | # not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
19 | # Cambridge, MA 02139, USA. | |
20 | ||
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21 | subdir := math |
22 | ||
23 | # Installed header files. | |
5fbef188 | 24 | headers := math.h mathcalls.h __math.h huge_val.h nan.h fpu_control.h |
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25 | |
26 | # Internal header files. | |
27 | distribute := math_private.h machine/asm.h machine/endian.h | |
28f540f4 | 28 | |
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29 | # FPU support code. |
30 | aux := fpu_control setfpucw | |
28f540f4 | 31 | |
f7eac6eb | 32 | # Build the -lm library. |
28f540f4 | 33 | |
f7eac6eb | 34 | extra-libs := libm |
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35 | |
36 | libm-support = k_standard s_lib_version s_matherr s_signgam | |
37 | libm-calls = e_acos e_acosh e_asin e_atan2 e_atanh e_cosh e_exp e_fmod \ | |
38 | e_hypot e_j0 e_j1 e_jn e_lgamma_r e_log e_log10 e_pow \ | |
39 | e_rem_pio2 e_remainder e_scalb e_sinh e_sqrt k_cos \ | |
40 | k_rem_pio2 k_sin k_tan s_asinh s_atan s_cbrt \ | |
41 | s_ceil s_copysign s_cos s_erf s_expm1 s_fabs s_finite \ | |
42 | s_floor s_frexp s_ilogb s_ldexp s_log1p s_logb \ | |
43 | s_modf s_nextafter s_rint s_scalbn s_significand \ | |
44 | s_sin s_tan s_tanh w_acos w_acosh w_asin \ | |
45 | w_atan2 w_atanh w_cabs w_cosh w_drem w_exp w_fmod w_gamma \ | |
46 | w_gamma_r w_hypot w_j0 w_j1 w_jn w_lgamma w_lgamma_r \ | |
47 | w_log w_log10 w_pow w_remainder w_scalb w_sinh w_sqrt | |
48 | libm-routines = $(libm-support) $(libm-calls) \ | |
49 | $(patsubst %_rf,%f_r,$(libm-calls:=f)) \ | |
50 | $(long-m-$(long-double-fcts)) | |
bf668fc8 | 51 | long-m-routines = $(patsubst %_rl,%l_r,$(libm-calls:=l)) # not ready yet |
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52 | #long-m-yes = $(long-m-routines) # uncomment this when code works |
53 | #distribute += $(long-m-routines:=.c) # and this when at least all files exist | |
58e07151 | 54 | |
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55 | # These functions are in libc instead of libm because __printf_fp |
56 | # calls them, so any program using printf will need them linked in, | |
57 | # and we don't want to have to link every program with -lm. | |
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58 | calls = s_isinf s_isnan |
59 | routines = $(calls) $(calls:=f) $(long-c-$(long-double-fcts)) \ | |
60 | s_frexp s_ldexp s_modf | |
58e07151 | 61 | long-c-yes = $(calls:=l) |
dcfb26a7 | 62 | distribute += $(long-c-yes:=.c) |
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63 | |
64 | ||
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65 | # The -lieee module sets the _LIB_VERSION_ switch to IEEE mode |
66 | # for error handling in the -lm functions. | |
67 | install-lib += libieee.a | |
68 | non-lib.a += libieee.a | |
69 | extra-objs += libieee.a ieee-math.o | |
6990326c | 70 | distribute += ieee-math.c |
26da047f | 71 | |
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72 | include ../Rules |
73 | ||
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74 | |
75 | # This file defines the default _LIB_VERSION variable that controls | |
76 | # the error return conventions for the math functions. | |
77 | CPPFLAGS-s_lib_version.c := -D_POSIX_MODE | |
78 | ||
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79 | # We don't want the fdlibm code to use the inline math functions, |
80 | # only the fdlibm code. | |
81 | CPPFLAGS += -D__NO_MATH_INLINES | |
82 | ||
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83 | ifneq ($(long-double-fcts),yes) |
84 | # The `double' and `long double' types are the same on this machine. | |
85 | # We won't compile the `long double' code at all. Tell the `double' code | |
86 | # to define aliases for the `FUNCl' names. | |
87 | CPPFLAGS += -DNO_LONG_DOUBLE | |
88 | endif | |
89 | ||
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90 | # The fdlibm code generates a lot of these warnings but is otherwise clean. |
91 | override CFLAGS += -Wno-uninitialized -Wno-write-strings | |
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92 | |
93 | # The -lieee library is actually an object file. | |
94 | # The module just defines the _LIB_VERSION_ variable. | |
95 | # It's not a library to make sure it is linked in instead of s_lib_version.o. | |
96 | $(objpfx)libieee.a: $(objpfx)ieee-math.o | |
97 | rm -f $@ | |
98 | ln $< $@ |