On 12-09-19 06:17 PM, Ian Lance Taylor wrote:
On Wed, Sep 19, 2012 at 1:56 PM, Ryan Mansfield <rmansfi...@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?
$ head config.log
This file contains any messages produced by compilers while
running configure, to aid debugging if configure makes a mistake.
It was created by configure, which was
generated by GNU Autoconf 2.64. Invocation command line was
$ ../configure --disable-bootstrap --enable-languages=c++
## --------- ##
## Platform. ##
Please check HAVE_GETIPINFO in libbacktrace/config.h. I assume it is 1.
Yep, it's 1.
$ grep HAVE_GETIPINFO config.h
#define HAVE_GETIPINFO 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?
I'm using gcc 4.1 on this machine. No, it doesn't have it in the
unwind.h or libgcc.
Regards,
Ryan Mansfield
