[Buildroot] _IO_getc inconsistent with uClibc?

[Buildroot] _IO_getc inconsistent with uClibc?

[Mats Erik Andersson]

Hi there,

in an effort to implement bluez-utils-2.15 for
an embedded system using uClibc, I ran into
unexpected problems, since my linker cannot
resolve the the symbol _IO_getc. Using a similar
configuration with Debian Sarge and building
bluez-utils, does not pose any problems, and
its linker kindly points to

    _IO_getc@@GLIBC_2.0

when the relevant object files have been linkt
together. It was exactly at this stage that my
Buildroot setting decided to cancel work for the day!

Now, I did allow uClibc to use macros for getc
and puts in the configuration, out of old habit.
Is it these macros that cause the mess?

Regards,   Mats Erik Andersson

[Buildroot] _IO_getc inconsistent with uClibc?

[Bernhard Fischer]

On Wed, May 16, 2007 at 07:51:29PM +0200, Mats Erik Andersson wrote:
>Hi there,
>
>in an effort to implement bluez-utils-2.15 for
>an embedded system using uClibc, I ran into
>unexpected problems, since my linker cannot
>resolve the the symbol _IO_getc. Using a similar
>configuration with Debian Sarge and building
>bluez-utils, does not pose any problems, and
>its linker kindly points to
>
>    _IO_getc@@GLIBC_2.0
>
>when the relevant object files have been linkt
>together. It was exactly at this stage that my
>Buildroot setting decided to cancel work for the day!
>
>Now, I did allow uClibc to use macros for getc
>and puts in the configuration, out of old habit.
>Is it these macros that cause the mess?

What version of uClibc are you using?
Does uClibc-0.9.29-fix-fget_putc.diff help?

[Buildroot] libiconv

[Christopher Reder]

I have searched around for a solution to the problem I have been having and
while there are a number of entries with the same issue, no one has a posted
solution.  I am using buildroot from svn with tiny-x server and metacity
enabled.  This will bring in gtk+ and other packages.  Without metacity and
those packages, everything compiles fine.  

When I add it in, I get the following error:

checking for iconv_open in -liconv... no
configure: error: *** No iconv() implementation found in C library or
libiconv
make: *** [/home/christopher/buildroot/build_arm/glib-2.12.9/.configured]
Error 1

and from config.log:


configure:5964: checking for iconv_open
configure:6020:
/home/christopher/buildroot/build_arm/staging_dir/bin/arm-linux-uclibc-gcc
-$/tmp/cc06WWDf.o: In function `main':
conftest.c:(.text+0x4): undefined reference to `iconv_open'
collect2: ld returned 1 exit status
configure:6026: $? = 1

I have iconv installed and see iconv in /usr/local/bin .  can someone please
explain what is going on and what is wrong with this?  

Has anyone gotten something like this working for the arm (920T
architecture) ?

Christopher

[Buildroot] libiconv

[Christopher Reder]

To add to the question, when I install libiconv, do I need to cross compile
it as well?  When I do, if I should, do I install it in a specific
directory?  What about the libiconv.so.2 for the pc?  Can someone clarify
what should happen with that?

-----Original Message-----
From: buildroot-bounces@uclibc.org [mailto:buildroot-bounces at uclibc.org] On
Behalf Of Christopher Reder
Sent: Wednesday, May 16, 2007 3:55 PM
To: buildroot at uclibc.org
Subject: [Buildroot] libiconv

I have searched around for a solution to the problem I have been having and
while there are a number of entries with the same issue, no one has a posted
solution.  I am using buildroot from svn with tiny-x server and metacity
enabled.  This will bring in gtk+ and other packages.  Without metacity and
those packages, everything compiles fine.  

When I add it in, I get the following error:

checking for iconv_open in -liconv... no
configure: error: *** No iconv() implementation found in C library or
libiconv
make: *** [/home/christopher/buildroot/build_arm/glib-2.12.9/.configured]
Error 1

and from config.log:


configure:5964: checking for iconv_open
configure:6020:
/home/christopher/buildroot/build_arm/staging_dir/bin/arm-linux-uclibc-gcc
-$/tmp/cc06WWDf.o: In function `main':
conftest.c:(.text+0x4): undefined reference to `iconv_open'
collect2: ld returned 1 exit status
configure:6026: $? = 1

I have iconv installed and see iconv in /usr/local/bin .  can someone please
explain what is going on and what is wrong with this?  

Has anyone gotten something like this working for the arm (920T
architecture) ?

Christopher

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[Buildroot] libiconv

[Bernhard Fischer]

On Wed, May 16, 2007 at 03:55:29PM -0500, Christopher Reder wrote:
>I have searched around for a solution to the problem I have been having and
>while there are a number of entries with the same issue, no one has a posted
>solution.  I am using buildroot from svn with tiny-x server and metacity
>enabled.  This will bring in gtk+ and other packages.  Without metacity and
>those packages, everything compiles fine.  
>
>When I add it in, I get the following error:
>
>checking for iconv_open in -liconv... no
>configure: error: *** No iconv() implementation found in C library or
>libiconv

How is this related to getc()? Don't hijack threads!