gnulib: m4/strtod.m4 annotate

annotate m4/strtod.m4 @ 40196:e63f5d3edab5

relocatable-prog: Update documentation. * doc/relocatable-maint.texi (Supporting Relocation): Update to match the recent changes.

author	Bruno Haible <bruno@clisp.org>
date	Sun, 24 Feb 2019 01:49:15 +0100
parents	31ab89a208b9
children

rev	line source
40172 31ab89a208b9 strtod, strtold: Use the locale's decimal point. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	1 # strtod.m4 serial 24
40057 b06060465f09 maint: Run 'make update-copyright' Paul Eggert <eggert@cs.ucla.edu> parents: 19484 diff changeset	2 dnl Copyright (C) 2002-2003, 2006-2019 Free Software Foundation, Inc.
5611 87c42e194f4a Use an all-permissive copyright notice, recommended by RMS. Paul Eggert <eggert@cs.ucla.edu> parents: 4691 diff changeset	3 dnl This file is free software; the Free Software Foundation
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS. Paul Eggert <eggert@cs.ucla.edu> parents: 4691 diff changeset	4 dnl gives unlimited permission to copy and/or distribute it,
87c42e194f4a Use an all-permissive copyright notice, recommended by RMS. Paul Eggert <eggert@cs.ucla.edu> parents: 4691 diff changeset	5 dnl with or without modifications, as long as this notice is preserved.
4107 7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	6
7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	7 AC_DEFUN([gl_FUNC_STRTOD],
7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	8 [
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	9 AC_REQUIRE([gl_STDLIB_H_DEFAULTS])
18993 a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	10 AC_REQUIRE([AC_CANONICAL_HOST]) dnl for cross-compiles
14616 ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	11 m4_ifdef([gl_FUNC_STRTOD_OBSOLETE], [
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	12 dnl Test whether strtod is declared.
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	13 dnl Don't call AC_FUNC_STRTOD, because it does not have the right guess
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	14 dnl when cross-compiling.
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	15 dnl Don't call AC_CHECK_FUNCS([strtod]) because it would collide with the
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	16 dnl ac_cv_func_strtod variable set by the AC_FUNC_STRTOD macro.
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	17 AC_CHECK_DECLS_ONCE([strtod])
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	18 if test $ac_cv_have_decl_strtod != yes; then
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	19 HAVE_STRTOD=0
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	20 fi
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	21 ])
ffa170f6f764 strtod: Remove check for strtod, unless supporting old platforms. Bruno Haible <bruno@clisp.org> parents: 14079 diff changeset	22 if test $HAVE_STRTOD = 1; then
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	23 AC_CACHE_CHECK([whether strtod obeys C99], [gl_cv_func_strtod_works],
18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	24 [AC_RUN_IFELSE([AC_LANG_PROGRAM([[
18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	25 #include <stdlib.h>
18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	26 #include <math.h>
11210 28a51f0d9605 strtod: detect HP-UX 11.31 bug Eric Blake <ebb9@byu.net> parents: 11007 diff changeset	27 #include <errno.h>
9929 357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	28 /* Compare two numbers with ==.
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	29 This is a separate function because IRIX 6.5 "cc -O" miscompiles an
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	30 'x == x' test. */
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	31 static int
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	32 numeric_equal (double x, double y)
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	33 {
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	34 return x == y;
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	35 }
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	36 ]], [[
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	37 int result = 0;
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	38 {
13425 e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	39 /* In some old versions of Linux (2000 or before), strtod mis-parses
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	40 strings with leading '+'. */
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	41 const char *string = " +69";
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	42 char *term;
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	43 double value = strtod (string, &term);
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	44 if (value != 69 \|\| term != (string + 4))
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	45 result \|= 1;
13425 e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	46 }
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	47 {
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	48 /* Under Solaris 2.4, strtod returns the wrong value for the
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	49 terminating character under some conditions. */
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	50 const char *string = "NaN";
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	51 char *term;
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	52 strtod (string, &term);
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	53 if (term != string && *(term - 1) == 0)
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	54 result \|= 2;
13425 e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	55 }
e2b2ba442532 strtod: Stop using AC_FUNC_STRTOD. Bruno Haible <bruno@clisp.org> parents: 13149 diff changeset	56 {
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	57 /* Older glibc and Cygwin mis-parse "-0x". */
9871 faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	58 const char *string = "-0x";
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	59 char *term;
18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	60 double value = strtod (string, &term);
9898 02bfc9acab82 Work around Solaris 10 math.h bug. Eric Blake <ebb9@byu.net> parents: 9871 diff changeset	61 double zero = 0.0;
02bfc9acab82 Work around Solaris 10 math.h bug. Eric Blake <ebb9@byu.net> parents: 9871 diff changeset	62 if (1.0 / value != -1.0 / zero \|\| term != (string + 2))
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	63 result \|= 4;
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	64 }
18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	65 {
9871 faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	66 /* Many platforms do not parse hex floats. */
faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	67 const char *string = "0XaP+1";
faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	68 char *term;
faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	69 double value = strtod (string, &term);
faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	70 if (value != 20.0 \|\| term != (string + 6))
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	71 result \|= 8;
9871 faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	72 }
faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	73 {
11210 28a51f0d9605 strtod: detect HP-UX 11.31 bug Eric Blake <ebb9@byu.net> parents: 11007 diff changeset	74 /* Many platforms do not parse infinities. HP-UX 11.31 parses inf,
28a51f0d9605 strtod: detect HP-UX 11.31 bug Eric Blake <ebb9@byu.net> parents: 11007 diff changeset	75 but mistakenly sets errno. */
9871 faf4392efa56 Improve strtod bug detection check. Eric Blake <ebb9@byu.net> parents: 9821 diff changeset	76 const char *string = "inf";
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	77 char *term;
11212 8233c503d99e strtod: avoid C99 decl-after-statement Gary V. Vaughan <gary@gnu.org> parents: 11210 diff changeset	78 double value;
11210 28a51f0d9605 strtod: detect HP-UX 11.31 bug Eric Blake <ebb9@byu.net> parents: 11007 diff changeset	79 errno = 0;
11212 8233c503d99e strtod: avoid C99 decl-after-statement Gary V. Vaughan <gary@gnu.org> parents: 11210 diff changeset	80 value = strtod (string, &term);
11210 28a51f0d9605 strtod: detect HP-UX 11.31 bug Eric Blake <ebb9@byu.net> parents: 11007 diff changeset	81 if (value != HUGE_VAL \|\| term != (string + 3) \|\| errno)
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	82 result \|= 16;
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	83 }
9929 357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	84 {
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	85 /* glibc 2.7 and cygwin 1.5.24 misparse "nan()". */
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	86 const char *string = "nan()";
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	87 char *term;
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	88 double value = strtod (string, &term);
357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	89 if (numeric_equal (value, value) \|\| term != (string + 5))
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	90 result \|= 32;
9929 357b15084942 Adjust strtod detection to catch glibc 2.7 bug. Eric Blake <ebb9@byu.net> parents: 9898 diff changeset	91 }
12247 963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	92 {
963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	93 /* darwin 10.6.1 misparses "nan(". */
963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	94 const char *string = "nan(";
963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	95 char *term;
963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	96 double value = strtod (string, &term);
963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	97 if (numeric_equal (value, value) \|\| term != (string + 3))
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	98 result \|= 64;
12247 963fbd66201a strtod: detect darwin bug Eric Blake <ebb9@byu.net> parents: 11212 diff changeset	99 }
13918 d5a74c6ec06b Put more information about failed tests into the test return codes. Bruno Haible <bruno@clisp.org> parents: 13885 diff changeset	100 return result;
9821 18bab9955c43 Document various strtod bugs, with some fixes. Eric Blake <ebb9@byu.net> parents: 7942 diff changeset	101 ]])],
12421 e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12247 diff changeset	102 [gl_cv_func_strtod_works=yes],
e8d2c6fc33ad Use spaces for indentation, not tabs. Bruno Haible <bruno@clisp.org> parents: 12247 diff changeset	103 [gl_cv_func_strtod_works=no],
13427 727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	104 [dnl The last known bugs in glibc strtod(), as of this writing,
15338 03e2cd1cbbe8 maint: indent with spaces, not TABs, and add a rule to check this Jim Meyering <meyering@redhat.com> parents: 15113 diff changeset	105 dnl were fixed in version 2.8
13427 727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	106 AC_EGREP_CPP([Lucky user],
727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	107 [
727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	108 #include <features.h>
727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	109 #ifdef __GNU_LIBRARY__
13885 87a95303747f Port to uClibc. Bruno Haible <bruno@clisp.org> parents: 13482 diff changeset	110 #if ((__GLIBC__ == 2 && __GLIBC_MINOR__ >= 8) \|\| (__GLIBC__ > 2)) \
87a95303747f Port to uClibc. Bruno Haible <bruno@clisp.org> parents: 13482 diff changeset	111 && !defined __UCLIBC__
13427 727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	112 Lucky user
727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	113 #endif
727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	114 #endif
727e17a1e8b3 strtod: Assume strtod() works when cross-compiling to new-enough glibc. Ben Pfaff <blp@cs.stanford.edu> parents: 13426 diff changeset	115 ],
16810 ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	116 [gl_cv_func_strtod_works="guessing yes"],
18993 a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	117 [case "$host_os" in
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	118 # Guess yes on native Windows.
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	119 mingw*) gl_cv_func_strtod_works="guessing yes" ;;
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	120 *) gl_cv_func_strtod_works="guessing no" ;;
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	121 esac
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	122 ])
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	123 ])
a75cfc731331 Improve cross-compilation guesses for native Windows. Bruno Haible <bruno@clisp.org> parents: 18626 diff changeset	124 ])
16810 ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	125 case "$gl_cv_func_strtod_works" in
ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	126 *yes) ;;
ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	127 *)
ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	128 REPLACE_STRTOD=1
ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	129 ;;
ca49e9a6643d Say "guessing yes" or "guessing no" when cross-compiling. Bruno Haible <bruno@clisp.org> parents: 16201 diff changeset	130 esac
4107 7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	131 fi
7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	132 ])
7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	133
7c1a6b73f48e An autoconf macro for its associated module. Bruno Haible <bruno@clisp.org> parents: diff changeset	134 # Prerequisites of lib/strtod.c.
13456 fd291325b6d5 strtod: make it more-accurate typically, and don't require libm Paul R. Eggert <eggert@cs.ucla.edu> parents: 13427 diff changeset	135 AC_DEFUN([gl_PREREQ_STRTOD], [
13462 88292c519d86 Unify tests that set gl_cv_func_ldexp_no_libm. Bruno Haible <bruno@clisp.org> parents: 13456 diff changeset	136 AC_REQUIRE([gl_CHECK_LDEXP_NO_LIBM])
13456 fd291325b6d5 strtod: make it more-accurate typically, and don't require libm Paul R. Eggert <eggert@cs.ucla.edu> parents: 13427 diff changeset	137 if test $gl_cv_func_ldexp_no_libm = yes; then
fd291325b6d5 strtod: make it more-accurate typically, and don't require libm Paul R. Eggert <eggert@cs.ucla.edu> parents: 13427 diff changeset	138 AC_DEFINE([HAVE_LDEXP_IN_LIBC], [1],
fd291325b6d5 strtod: make it more-accurate typically, and don't require libm Paul R. Eggert <eggert@cs.ucla.edu> parents: 13427 diff changeset	139 [Define if the ldexp function is available in libc.])
fd291325b6d5 strtod: make it more-accurate typically, and don't require libm Paul R. Eggert <eggert@cs.ucla.edu> parents: 13427 diff changeset	140 fi
40172 31ab89a208b9 strtod, strtold: Use the locale's decimal point. Bruno Haible <bruno@clisp.org> parents: 40057 diff changeset	141 AC_CHECK_FUNCS([nl_langinfo])
13456 fd291325b6d5 strtod: make it more-accurate typically, and don't require libm Paul R. Eggert <eggert@cs.ucla.edu> parents: 13427 diff changeset	142 ])

Mercurial > gnulib

annotate m4/strtod.m4 @ 40196:e63f5d3edab5