Re: [Libunwind-devel] Error building libunwind-1.-0.1 on Ubuntuu 10.04

[Joe Damato]

On Fri, Sep 16, 2011 at 7:43 AM, Myke Smith (Palm GBU)
<address@hidden> wrote:
>
> Tried to build on Ubuntu 10.04 this morning and ran into this problem
>
>
>
> libtool: link: ranlib .libs/libunwind-x86.a
> libtool: link: rm -fr .libs/libunwind-x86.lax .libs/libunwind-x86.lax
> libtool: link: ( cd ".libs" && rm -f "libunwind-x86.la" && ln -s 
> "../libunwind-x86.la" "libunwind-x86.la" )
> depbase=`echo setjmp/longjmp.lo | sed 's|[^/]*$|.deps/&|;s|\.lo$||'`;\
>        /bin/bash ../libtool --tag=CC   --mode=compile gcc -DHAVE_CONFIG_H -I. 
> -I../include  -I../include -I../include/tdep-x86 -I. -D_GNU_SOURCE -DNDEBUG  
> -g -O2 -fexceptions -Wall -Wsign-compare -MT setjmp/longjmp.lo -MD -MP -MF 
> $depbase.Tpo -c -o setjmp/longjmp.lo setjmp/longjmp.c &&\
>        mv -f $depbase.Tpo $depbase.Plo
> libtool: compile:  gcc -DHAVE_CONFIG_H -I. -I../include -I../include 
> -I../include/tdep-x86 -I. -D_GNU_SOURCE -DNDEBUG -g -O2 -fexceptions -Wall 
> -Wsign-compare -MT setjmp/longjmp.lo -MD -MP -MF setjmp/.deps/longjmp.Tpo -c 
> setjmp/longjmp.c  -fPIC -DPIC -o setjmp/.libs/longjmp.o
> /usr/include/bits/setjmp2.h:26: error: ‘longjmp’ aliased to undefined symbol 
> ‘_longjmp’

Add

-U_FORTIFY_SOURCE

to CFLAGS and try again.

Joe