[Buildroot] Struggling with undefined reference to `__fgetc_unlocked'

[Buildroot] Struggling with undefined reference to `__fgetc_unlocked'

[Thiago A. Corrêa]

Hi,

   I'm struggling with qtopia. During the link of rcc (which is a host
tool, natively compiled) I get:

g++  -o ../../../bin/rcc .obj/release-shared-emb-avr32/main.o
.obj/release-shared-emb-avr32/rcc.o
.obj/release-shared-emb-avr32/qglobal.o
.obj/release-shared-emb-avr32/qbuffer.o
.obj/release-shared-emb-avr32/qdir.o
.obj/release-shared-emb-avr32/qfile.o
.obj/release-shared-emb-avr32/qfileinfo.o
.obj/release-shared-emb-avr32/qfsfileengine.o
.obj/release-shared-emb-avr32/qiodevice.o
.obj/release-shared-emb-avr32/qtemporaryfile.o
.obj/release-shared-emb-avr32/qtextstream.o
.obj/release-shared-emb-avr32/qbytearraymatcher.o
.obj/release-shared-emb-avr32/qchar.o
.obj/release-shared-emb-avr32/qdatetime.o
.obj/release-shared-emb-avr32/qhash.o
.obj/release-shared-emb-avr32/qlistdata.o
.obj/release-shared-emb-avr32/qlocale.o
.obj/release-shared-emb-avr32/qmap.o
.obj/release-shared-emb-avr32/qstring.o
.obj/release-shared-emb-avr32/qstringlist.o
.obj/release-shared-emb-avr32/qstringmatcher.o
.obj/release-shared-emb-avr32/qvector.o
.obj/release-shared-emb-avr32/qabstractfileengine.o
.obj/release-shared-emb-avr32/qbytearray.o
.obj/release-shared-emb-avr32/qbitarray.o
.obj/release-shared-emb-avr32/qunicodetables.o
.obj/release-shared-emb-avr32/qvsnprintf.o
.obj/release-shared-emb-avr32/qregexp.o
.obj/release-shared-emb-avr32/qtextcodec.o
.obj/release-shared-emb-avr32/qutfcodec.o
.obj/release-shared-emb-avr32/qisciicodec.o
.obj/release-shared-emb-avr32/qtsciicodec.o
.obj/release-shared-emb-avr32/qlatincodec.o
.obj/release-shared-emb-avr32/qsimplecodec.o
.obj/release-shared-emb-avr32/qdom.o
.obj/release-shared-emb-avr32/qxml.o
.obj/release-shared-emb-avr32/qfsfileengine_unix.o     -lz -ldl
.obj/release-shared-emb-avr32/qfsfileengine.o: In function
`QFSFileEngine::read(char*, long long)':
qfsfileengine.cpp:(.text+0x1160): undefined reference to `__fgetc_unlocked'
collect2: ld returned 1 exit status
make[3]: *** [../../../bin/rcc] Error 1


I googled for the error, but could only find ppl complaining about
this when linking against uClibc, when this should be linking against
the system glibc. Does anyone has an idea of what I could try?

Regards,
    Thiago A. Correa

[Buildroot] Struggling with undefined reference to `__fgetc_unlocked'

[Carmelo AMOROSO]

Thiago A. Corr?a wrote:
> Hi,
>
>    I'm struggling with qtopia. During the link of rcc (which is a host
> tool, natively compiled) I get:
>
> I googled for the error, but could only find ppl complaining about
> this when linking against uClibc, when this should be linking against
> the system glibc. Does anyone has an idea of what I could try?
>
> Regards,
>     Thiago A. Correa
>   
Which glibc version have you installed on your host?
For example, on my RHEL 3 there is glibc-2.3.4 which doesn't contain the 
__fgetc_unlocked
symbol, while fgetc_unlocked (no underscore prepending)...
so just check your glibc by running 'readelf -s /lib/libc.so.6 | grep 
fgetc_unlocked'
and see what it returns.

Regards,
Carmelo

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>
>   

[Buildroot] Struggling with undefined reference to `__fgetc_unlocked'

[Thiago A. Corrêa]

PS: Sorry, forgot to add the list in the reply. *g*.

Hi Carmelo,

   That command returned
gentoo-vm buildroot # readelf -s /lib/libc.so.6 | grep fgetc_unlocked
  1868: 0005e040    40 FUNC    WEAK   DEFAULT   11 fgetc_unlocked@@GLIBC_2.1
gentoo-vm buildroot #

   I'm guessing the prepended underscores are due to mangling, but
could be wrong.

On 8/23/07, Carmelo AMOROSO <carmelo.amoroso@st.com> wrote:
> Thiago A. Corr?a wrote:
> > Hi,
> >
> >    I'm struggling with qtopia. During the link of rcc (which is a host
> > tool, natively compiled) I get:
> >
> > I googled for the error, but could only find ppl complaining about
> > this when linking against uClibc, when this should be linking against
> > the system glibc. Does anyone has an idea of what I could try?
> >
> > Regards,
> >     Thiago A. Correa
> >
> Which glibc version have you installed on your host?
> For example, on my RHEL 3 there is glibc-2.3.4 which doesn't contain the
> __fgetc_unlocked
> symbol, while fgetc_unlocked (no underscore prepending)...
> so just check your glibc by running 'readelf -s /lib/libc.so.6 | grep
> fgetc_unlocked'
> and see what it returns.
>
> Regards,
> Carmelo
>
> > _______________________________________________
> > buildroot mailing list
> > buildroot at uclibc.org
> > http://busybox.net/mailman/listinfo/buildroot
> >
> >
>
>