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Date: Sat, 16 Oct 2010 06:19:29 +0100 (BST)
From: Marco Atzeri <marco_atzeri AT yahoo DOT it>
Subject: R: gfortran 4.3.4: NINT() intrinsic triggers undefined references to '_llround' and '_llroundf'
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--- Ven 15/10/10, Cornelis de Gier ha scritto:

> The NINT() intrinsic in current
> gfortran under current cygwin triggers
> undefined references to '_llround' and '_llroundf'. I found
> a somewhat
> related post here:
> http://sourceware.org/ml/cygwin/2010-06/msg00369.html ,
> but I could
> not deduce a solution from this message.
>=20
> Below follows a small test program and the output of
> gfortran. The
> test program worked OK on a linux system.)
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> program testnint
> integer, parameter :: kr64 =3D selected_real_kind(15,307)
> integer, parameter :: ki64 =3D selected_int_kind(18)
>=20
> real(kr64)::dp=3D1.
> real::r=3D2.
>=20
> write(*,*),nint(r,ki64)
> write(*,*),nint(dp,ki64)
>=20
> endprogram testnint
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
> $ gfortran -Wall testnint.f90
> /tmp/ccqOJVB5.o:testnint.f90:(.text+0x5c): undefined
> reference to `_llroundf'
> /tmp/ccqOJVB5.o:testnint.f90:(.text+0xd1): undefined
> reference to `_llround'
> collect2: ld returned 1 exit status
> =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
>=20
>=20
> Cornelis
>=20

As Dave wrote the problem is inside cygwin

> I thought it was just because we are failing to export=20
> them in the cygwin.din file.  The correct .o files are
> compiled as part of the newlib libm build.

but we forgot to make a patch.

I will look on it.

Marco






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