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Failing to build native gcc-5 on powerpc-linux-gnuspe
- From: John Paul Adrian Glaubitz <glaubitz at physik dot fu-berlin dot de>
- To: gcc-help at gcc dot gnu dot org
- Date: Thu, 10 Mar 2016 04:59:53 +0100
- Subject: Failing to build native gcc-5 on powerpc-linux-gnuspe
- Authentication-results: sourceware.org; auth=none
Hello!
I have been trying to get a native gcc-5 working on powerpc-linux-gnuspe
(Debian architecture: powerpcspe) for several days now.
gcc-5 fails to build from source because the linker cannot resolve the
__unorddf2 symbol when linking libgo or libjava [1]:
/ÂPKGBUILDDIRÂ/build/./gcc/gccgo -B/ÂPKGBUILDDIRÂ/build/./gcc/ -g -O2
-static-libstdc++ -static-libgcc -Wl,-z,relro -L
../powerpc-linux-gnuspe/libgo -L ../powe
rpc-linux-gnuspe/libgo/.libs -o gofmt
../../src/gotools/../libgo/go/cmd/gofmt/doc.go
../../src/gotools/../libgo/go/cmd/gofmt/gofmt.go ../../src/gotools/../libgo
/go/cmd/gofmt/rewrite.go
../../src/gotools/../libgo/go/cmd/gofmt/simplify.go
../powerpc-linux-gnuspe/libgo/.libs/libgo.so: undefined reference to
`__unorddf2'
collect2: error: ld returned 1 exit status
Makefile:629: recipe for target 'gofmt' failed
make[4]: *** [gofmt] Error 1
make[4]: Leaving directory '/ÂPKGBUILDDIRÂ/build/gotools'
Makefile:12509: recipe for target 'all-gotools' failed
make[3]: *** [all-gotools] Error 2
As you can see in the bug report, I've tried fiddling with the build
system a lot but so far without any success. This bug seems to be
a regression caused by a previous patch that deprecated soft-fp symbols
in gcc's libgcc in favour of those available in glibc [2].
I talked to the author of the change, but unfortunately he also doesn't
have any idea what to do here and he advised me to ask on this list.
Since I am working on resurrecting Debian's powerpcspe port, I will
have to get gcc-5 working on this architecture again before I can
start building any other packages.
Any ideas?
Thanks,
Adrian
> [1] https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69988
> [2] https://patchwork.ozlabs.org/patch/405072/
--
.''`. John Paul Adrian Glaubitz
: :' : Debian Developer - glaubitz@debian.org
`. `' Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
`- GPG: 62FF 8A75 84E0 2956 9546 0006 7426 3B37 F5B5 F913