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newlib: strtold: use __builtin_nanl to avoid libm dependency

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Commit 6c212a8b78
("Fix strtod ("nan") and strtold ("nan") returns wrong negative NaN")
introduced an unconditional dependency to nanl and, in turn, to libm.

Rather than including nanl in libc as well, just call __builtin_nanl
from here.  Requires GCC 3.3 or later.

Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
This commit is contained in:
Corinna Vinschen
2018-10-10 17:53:55 +02:00
parent 682c4a9f1e
commit 35555851d7
1 changed files with 1 additions and 1 deletions
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2
newlib/libc/stdlib/strtorx.c
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@@ -89,7 +89,7 @@ ULtox(__UShort *L, __ULong *bits, Long exp, int k)
break; break;
case STRTOG_NaN: case STRTOG_NaN:
*((long double*)L) = nanl (""); *((long double*)L) = __builtin_nanl ("");
} }
if (k & STRTOG_Neg) if (k & STRTOG_Neg)
L[_0] |= 0x8000; L[_0] |= 0x8000;