On 29-07-2012 16:14:12 -0500, Bob Friesenhahn wrote:
> On Thu, 26 Jul 2012, Fabian Groffen wrote:
> >
> > Libtool apparently figures out what libs to link to by watching what the
> > compiler does. It applies duplicate elimination on the result of that
> > (don't know why) causing -lgcc_s -lc -lgc
On Mon, 30 Jul 2012, Fabian Groffen wrote:
Unfortunately, this fix is not working for me (not fixing issue I
already encountered). I do see libtool's exceptions test pass (for a
32-bit build) , but it does not work for my own C++ application as a
64-bit build. It seems that GCC itself is causi
On 30-07-2012 08:49:17 -0500, Bob Friesenhahn wrote:
> Libtool link line:
> /bin/bash ./libtool --tag=CXX --mode=link /usr/local64/bin/c++-64
> -march=native -O -g -g3 -ggdb -Wall -Winline -W -Wextra -Wno-unknown-pragmas
> -D_REENTRANT -pthreads -no-undefined -Wl,-zlazyload -L/usr/local64/lib
Perhaps the issue is caused by this in the GCC spec file?
*lib:
%{!symbolic: %{pthreads|pthread:-lpthread}
%{pthreads|pthread|fprofile-generate*:} %{p|pg:-ldl} -lc}
If that is true, then the problem should go away if pthreads are not
requested.
Bob
--
Bob Friesenhahn
bfrie...@s
On Mon, 30 Jul 2012, Fabian Groffen wrote:
On 30-07-2012 08:49:17 -0500, Bob Friesenhahn wrote:
Libtool link line:
/bin/bash ./libtool --tag=CXX --mode=link /usr/local64/bin/c++-64
-march=native -O -g -g3 -ggdb -Wall -Winline -W -Wextra -Wno-unknown-pragmas
-D_REENTRANT -pthreads -no-unde
On 30-07-2012 09:27:00 -0500, Bob Friesenhahn wrote:
> Yesterday I took the link command that libtool was generating and
> removed -lc from it. GCC still produced -lc in its collect2
> invocation.
it should, see link_gcc_c_sequence
> It seems that there are at least two issues. In some cases
On Mon, 30 Jul 2012, Fabian Groffen wrote:
I think libtool only injects -lc if it was actually explicitly given, or
do you suspect it to do otherwise?
I think you are correct. However, once this junk makes it into a
libtool .la file then it is preserved by libtool.
Your GCC seems to use GN
On 30-07-2012 11:02:59 -0500, Bob Friesenhahn wrote:
> On Mon, 30 Jul 2012, Fabian Groffen wrote:
> >
> > I think libtool only injects -lc if it was actually explicitly given, or
> > do you suspect it to do otherwise?
>
> I think you are correct. However, once this junk makes it into a
> libtool
