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Re: Backtrace library [1/3]


On Wed, Sep 19, 2012 at 1:56 PM, Ryan Mansfield <rmansfield@qnx.com> wrote:
>
> I'm hitting the following build issue
>
> /bin/sh ./libtool --tag=CC   --mode=compile i686-unknown-linux-gnu-gcc
> -DHAVE_CONFIG_H -I. -I../../libbacktrace  -I ../../libbacktrace/../include
> -I ../../libbacktrace/../libgcc -I ../libgcc -I ../gcc/include -I
> ../../gcc/include  -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute
> -Wcast-qual -Werror -g -O2 -MT backtrace.lo -MD -MP -MF .deps/backtrace.Tpo
> -c -o backtrace.lo ../../libbacktrace/backtrace.c
> libtool: compile:  i686-unknown-linux-gnu-gcc -DHAVE_CONFIG_H -I.
> -I../../libbacktrace -I ../../libbacktrace/../include -I
> ../../libbacktrace/../libgcc -I ../libgcc -I ../gcc/include -I
> ../../gcc/include -W -Wall -Wwrite-strings -Wstrict-prototypes
> -Wmissing-prototypes -Wold-style-definition -Wmissing-format-attribute
> -Wcast-qual -Werror -g -O2 -MT backtrace.lo -MD -MP -MF .deps/backtrace.Tpo
> -c ../../libbacktrace/backtrace.c -o backtrace.o
>
> cc1: warnings being treated as errors
> ../../libbacktrace/backtrace.c: In function 'unwind':
> ../../libbacktrace/backtrace.c:69: warning: implicit declaration of function
> '_Unwind_GetIPInfo'
> make[3]: *** [backtrace.lo] Error 1

Don't omit the details: How precisely did you run configure?  In what
directory is this error occurring?

Please check HAVE_GETIPINFO in libbacktrace/config.h.  I assume it is 1.

It looks like you may be doing some sort of Canadian Cross build.
What version of GCC is i686-unknown-linux-gnu-gcc?  Does that version
of gcc declare _Unwind_GetIPInfo in its unwind.h?  Does it provide
_Unwind_GetIPInfo in its libgcc?

Ian


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