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David Oberhollenzer
6592c3e996
When cross compiling with a musl toolchain, the symbol minus_zero gets defined more than once, causing linking problems This commit adds as a simple workaround a patch from the openembedded project. Signed-off-by: David Oberhollenzer <goliath@infraroot.at>
56 lines
1.8 KiB
Diff
56 lines
1.8 KiB
Diff
From 0562b040fa17f1722ba2b3096067b45d0582ca53 Mon Sep 17 00:00:00 2001
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From: Paul Eggert <eggert@cs.ucla.edu>
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Date: Mon, 11 Mar 2019 16:40:29 -0700
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Subject: [PATCH] strtod: fix clash with strtold
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Problem reported for RHEL 5 by Jesse Caldwell (Bug#34817).
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* lib/strtod.c (compute_minus_zero, minus_zero):
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Simplify by remving the macro / external variable,
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and having just a function. User changed. This avoids
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the need for an external variable that might clash.
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Upstream-Status: Backported [rhel5]
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Signed-off-by: Oleksandr Kravchuk <open.source@oleksandr-kravchuk.com>
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---
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ChangeLog | 9 +++++++++
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lib/strtod.c | 11 +++++------
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2 files changed, 14 insertions(+), 6 deletions(-)
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diff --git a/lib/strtod.c b/lib/strtod.c
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index b9eaa51b4..69b1564e1 100644
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--- a/lib/strtod.c
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+++ b/lib/strtod.c
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@@ -294,16 +294,15 @@ parse_number (const char *nptr,
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ICC 10.0 has a bug when optimizing the expression -zero.
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The expression -MIN * MIN does not work when cross-compiling
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to PowerPC on Mac OS X 10.5. */
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-#if defined __hpux || defined __sgi || defined __ICC
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static DOUBLE
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-compute_minus_zero (void)
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+minus_zero (void)
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{
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+#if defined __hpux || defined __sgi || defined __ICC
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return -MIN * MIN;
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-}
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-# define minus_zero compute_minus_zero ()
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#else
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-DOUBLE minus_zero = -0.0;
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+ return -0.0;
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#endif
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+}
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/* Convert NPTR to a DOUBLE. If ENDPTR is not NULL, a pointer to the
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character after the last one used in the number is put in *ENDPTR. */
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@@ -479,6 +478,6 @@ STRTOD (const char *nptr, char **endptr)
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/* Special case -0.0, since at least ICC miscompiles negation. We
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can't use copysign(), as that drags in -lm on some platforms. */
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if (!num && negative)
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- return minus_zero;
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+ return minus_zero ();
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return negative ? -num : num;
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}
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--
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2.20.1
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