[Bug bootstrap/46812] New: Linux libgo compilation fails when a "libnet" is already installed

["andi-gcc at firstfloor dot org" <gcc-bugzilla@gcc.gnu.org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46812

           Summary: Linux libgo compilation fails when a "libnet" is
                    already installed
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: bootstrap
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: andi-gcc@firstfloor.org


I tried to bootstrap a trunk gcc with go enabled on a OpenSUSE system.

This failed with:

set -e; rm -f crypto/rsa.gox.o; /home/andi/gcc/git/obj/./gcc/xgcc
-B/home/andi/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include    -r -nostdlib -o
crypto/rsa.gox.o -Wl,--whole-archive crypto/librsa.a; objcopy -j .go_export
crypto/rsa.gox.o crypto/rsa.gox.tmp; mv -f crypto/rsa.gox.tmp crypto/rsa.gox;
rm -f crypto/rsa.gox.o
rm -f `echo crypto/libx509.a | sed -e 's|/lib|/|' -e 's/\.a/.gox/'`; test -d
crypto || /bin/mkdir -p crypto; rm -f crypto/libx509.a; files=`echo
../../../gcc/libgo/go/crypto/x509/x509.go asn1.gox big.gox container/vector.gox
crypto/rsa.gox crypto/sha1.gox hash.gox os.gox strings.gox time.gox | sed -e
's/[^ ]*\.gox//g'`; if /bin/sh ./libtool --tag GO --mode=compile
/home/src/gcc/git/obj/./gcc/gccgo -B/home/src/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include    
-minline-all-stringops -O2 -g -c -fgo-prefix="libgo_crypto" -o
crypto/libx509.a.o $files; then ar rc crypto/libx509.a crypto/libx509.a.o; else
exit 1; fi
libtool: compile:  /home/src/gcc/git/obj/./gcc/gccgo
-B/home/src/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include -minline-all-stringops
-O2 -g -c -fgo-prefix=libgo_crypto ../../../gcc/libgo/go/crypto/x509/x509.go 
-fPIC -o crypto/.libs/libx509.a.o
libtool: compile:  /home/src/gcc/git/obj/./gcc/gccgo
-B/home/src/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include -minline-all-stringops
-O2 -g -c -fgo-prefix=libgo_crypto ../../../gcc/libgo/go/crypto/x509/x509.go -o
crypto/libx509.a.o >/dev/null 2>&1
set -e; rm -f crypto/x509.gox.o; /home/andi/gcc/git/obj/./gcc/xgcc
-B/home/andi/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include    -r -nostdlib -o
crypto/x509.gox.o -Wl,--whole-archive crypto/libx509.a; objcopy -j .go_export
crypto/x509.gox.o crypto/x509.gox.tmp; mv -f crypto/x509.gox.tmp
crypto/x509.gox; rm -f crypto/x509.gox.o
rm -f `echo crypto/libtls.a | sed -e 's|/lib|/|' -e 's/\.a/.gox/'`; test -d
crypto || /bin/mkdir -p crypto; rm -f crypto/libtls.a; files=`echo
../../../gcc/libgo/go/crypto/tls/alert.go
../../../gcc/libgo/go/crypto/tls/ca_set.go
../../../gcc/libgo/go/crypto/tls/common.go
../../../gcc/libgo/go/crypto/tls/conn.go
../../../gcc/libgo/go/crypto/tls/handshake_client.go
../../../gcc/libgo/go/crypto/tls/handshake_messages.go
../../../gcc/libgo/go/crypto/tls/handshake_server.go
../../../gcc/libgo/go/crypto/tls/prf.go ../../../gcc/libgo/go/crypto/tls/tls.go
bufio.gox bytes.gox container/list.gox crypto/hmac.gox crypto/md5.gox
crypto/rc4.gox crypto/rand.gox crypto/rsa.gox crypto/sha1.gox crypto/subtle.gox
crypto/x509.gox encoding/pem.gox fmt.gox hash.gox io.gox io/ioutil.gox net.gox
os.gox strings.gox sync.gox time.gox | sed -e 's/[^ ]*\.gox//g'`; if /bin/sh
./libtool --tag GO --mode=compile /home/src/gcc/git/obj/./gcc/gccgo
-B/home/src/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include    
-minline-all-stringops -O2 -g -c -fgo-prefix="libgo_crypto" -o
crypto/libtls.a.o $files; then ar rc crypto/libtls.a crypto/libtls.a.o; else
exit 1; fi
libtool: compile:  /home/src/gcc/git/obj/./gcc/gccgo
-B/home/src/gcc/git/obj/./gcc/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/bin/
-B/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/lib/ -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/include -isystem
/pkg/gcc-4.6-101205/x86_64-unknown-linux-gnu/sys-include -minline-all-stringops
-O2 -g -c -fgo-prefix=libgo_crypto ../../../gcc/libgo/go/crypto/tls/alert.go
../../../gcc/libgo/go/crypto/tls/ca_set.go
../../../gcc/libgo/go/crypto/tls/common.go
../../../gcc/libgo/go/crypto/tls/conn.go
../../../gcc/libgo/go/crypto/tls/handshake_client.go
../../../gcc/libgo/go/crypto/tls/handshake_messages.go
../../../gcc/libgo/go/crypto/tls/handshake_server.go
../../../gcc/libgo/go/crypto/tls/prf.go ../../../gcc/libgo/go/crypto/tls/tls.go
 -fPIC -o crypto/.libs/libtls.a.o
../../../gcc/libgo/go/crypto/tls/conn.go:11:5: error:
/usr/lib/../lib64/libnet.so exists but does not contain any Go export data
make[2]: *** [crypto/libtls.a] Error 1
make[2]: Leaving directory
`/home/src/gcc/git/obj/x86_64-unknown-linux-gnu/libgo'

/usr/lib64/libnet comes from a suse rpm and is a semipopular library.