On Wed, 02 Jan 2019 17:52:25 +0100
Jeremie Courreges-Anglas wrote:
> On Wed, Jan 02 2019, George Koehler <kern...@gmail.com> wrote:
> > On Mon, 31 Dec 2018 14:26:10 +0100
> > Jeremie Courreges-Anglas <j...@wxcvbn.org> wrote:
> >
> >> If you remove CFLAGS/CXXFLAGS = -mlongcall and restart the build
> >> from scratch, are clang and friends properly linked? Do you get a
> >> working llvm package?
> >
> > This actually worked! I cleaned the build, removed the -mlongcall,
> > and built llvm with gcc 6.5.0. The build of llvm took about 28
> > hours 40 minutes with my PowerBook G4 at half speed = 666 MHz.
> > (gcc had taken about 28 h 30 m.) The removal of -mlongcall also
> > removed most or all compiler warnings from the log. The build
> > succeeded. I can now use clang++ to compile and run a simple C++
> > program.
>
> Cool. Now if someone with a powerpc box could also try building llvm
> with gcc-4.9 and the diff below, that would be great. (REVISION bump
> not included.)
Hi,
I'm building it with your diff at the moment.
Charlène.
> Index: Makefile
> ===================================================================
> RCS file: /cvs/ports/devel/llvm/Makefile,v
> retrieving revision 1.202
> diff -u -p -r1.202 Makefile
> --- Makefile 15 Dec 2018 15:21:48 -0000 1.202
> +++ Makefile 2 Jan 2019 16:51:19 -0000
> @@ -83,8 +83,6 @@ CONFIGURE_ARGS = -DLLVM_ENABLE_FFI:Bool=
>
> # Workaround relocation overflow
> .if ${MACHINE_ARCH} == "powerpc"
> -CFLAGS += -mlongcall
> -CXXFLAGS += -mlongcall
> # As a workaround for the size only build the PowerPC backend
> CONFIGURE_ARGS += -DLLVM_TARGETS_TO_BUILD="PowerPC"
> .elif ${MACHINE_ARCH} == "arm"
>
>
> > I used the below diff in devel/llvm/Makefile. I also used
> > gcc-6-2.diff from my earlier mail to switch ports-gcc to lang/gcc/6.
> >
> > (Pascal Stumpf recently posted lang/gcc/8, but I'm keeping 6.5.0 for
> > now because I want to try building other packages.)
> >
> > Now that I can run clang++, I can show the dependency problem from
> > my mail "Re: powerpc bulk build report" to ports [1]:
> >
> > ghostborough$ cat
> > loopy.cpp
> > #include <functional>
> >
> > struct Thing {
> > int get() const { return 0; }
> > };
> >
> > int f(Thing t) {
> > return std::mem_fn(&Thing::get)(t);
> > }
> > ghostborough$ clang++ -c
> > loopy.cpp ghostborough$ doas pkg_delete g++
> > doas (kern...@ghostborough.my.domain) password:
> > g++-6.5.0p0: ok
> > Read shared items: ok
> > ghostborough$ clang++ -c
> > loopy.cpp loopy.cpp:8:14: error: no member named 'mem_fn' in
> > namespace 'std' return std::mem_fn(&Thing::get)(t);
> > ~~~~~^
> > 1 error generated.
> >
> > clang++ in the llvm package uses the headers from the g++ package,
> > but llvm has no dependency on g++. After I pkg_delete g++, then
> > clang++ seems to find the old headers from base-gcc, but those
> > headers don't have C++11 features like std::mem_fn.
>
> Noted, I'll take a look.
>
> > [1] https://marc.info/?l=openbsd-ports&m=154629731512667&w=2
> >
> > Index: Makefile
> > ===================================================================
> > RCS file: /cvs/ports/devel/llvm/Makefile,v
> > retrieving revision 1.202
> > diff -u -p -r1.202 Makefile
> > --- Makefile 15 Dec 2018 15:21:48 -0000 1.202
> > +++ Makefile 31 Dec 2018 19:26:26 -0000
> > @@ -83,8 +83,8 @@ CONFIGURE_ARGS = -DLLVM_ENABLE_FFI:Bool=
> >
> > # Workaround relocation overflow
> > .if ${MACHINE_ARCH} == "powerpc"
> > -CFLAGS += -mlongcall
> > -CXXFLAGS += -mlongcall
> > +#CFLAGS += -mlongcall
> > +#CXXFLAGS += -mlongcall
> > # As a workaround for the size only build the PowerPC backend
> > CONFIGURE_ARGS += -DLLVM_TARGETS_TO_BUILD="PowerPC"
> > .elif ${MACHINE_ARCH} == "arm"
> > @@ -101,7 +101,7 @@ PKG_ARGS += -Dpowerpc=0
> > TEST_TARGET = check
> >
> > # XXX sync
> > -GCC_VER = 4.9.4
> > +GCC_VER = 6.5.0
> > .if ${MACHINE_ARCH} == "amd64"
> > GCC_CONFIG = x86_64-unknown-openbsd${OSREV}
> > .else
>
> --
> jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE
> 1524 E7EE
>
