On Wed, Mar 18, 2020 at 5:18 AM Mohamed Mahmoud <mmahmoud2...@gmail.com> wrote:
>
> On Wednesday, March 18, 2020 at 8:01:27 AM UTC-4, Mohamed Mahmoud wrote:
>>
>>
>>> It doesn't look like the -ldflags option is getting through to the linker.
>>> Try
>>> go build "-ldflags=all=-w -extldflags=-lmabain -v"
>>>
>>> Ian
>>
>>
>> I tried the new format however it still can't link mabain lib and I get the
>> same errors
>>
>> Step 25/26 : RUN cd ${MABAIN_SRC}/; go build -x -i "-ldflags=all=-w
>> -extldflags=-lmabain -v"
>>
>> ---> Running in 90e992e27f6b
>>
>> WORK=/tmp/go-build678792509
>>
>> mkdir -p $WORK/b001/
>>
>> swig -version
>>
>> cd $WORK
>>
>> /usr/local/go/pkg/tool/linux_amd64/compile -o ./b001/_go_.o -trimpath
>> "$WORK/b001=>" -p main -complete -goversion go1.13 -D _$WORK -c=4
>> ./swig_intsize.go
>>
>> cd /mabain_src
>>
>> swig -go -cgo -intgosize 64 -module mabain -o $WORK/b001/mabain_wrap.cxx
>> -outdir $WORK/b001/ -c++ mabain.swigcxx
>>
>> CGO_LDFLAGS='"-g" "-O2"' /usr/local/go/pkg/tool/linux_amd64/cgo -objdir
>> $WORK/b001/ -importpath _/mabain_src -- -I $WORK/b001/ -g -O2
>> $WORK/b001/_mabain_swig.go
>>
>> cd $WORK
>>
>> gcc -fno-caret-diagnostics -c -x c - -o /dev/null || true
>>
>> gcc -Qunused-arguments -c -x c - -o /dev/null || true
>>
>> gcc -fdebug-prefix-map=a=b -c -x c - -o /dev/null || true
>>
>> gcc -gno-record-gcc-switches -c -x c - -o /dev/null || true
>>
>> cd $WORK/b001
>>
>> TERM='dumb' gcc -I /mabain_src -fPIC -m64 -pthread -fmessage-length=0
>> -fdebug-prefix-map=$WORK/b001=/tmp/go-build -gno-record-gcc-switches -I ./
>> -g -O2 -o ./_x001.o -c _cgo_export.c
>>
>> TERM='dumb' gcc -I /mabain_src -fPIC -m64 -pthread -fmessage-length=0
>> -fdebug-prefix-map=$WORK/b001=/tmp/go-build -gno-record-gcc-switches -I ./
>> -g -O2 -o ./_x002.o -c _mabain_swig.cgo2.c
>>
>> cd $WORK
>>
>> g++ -fno-caret-diagnostics -c -x c - -o /dev/null || true
>>
>> g++ -Qunused-arguments -c -x c - -o /dev/null || true
>>
>> g++ -fdebug-prefix-map=a=b -c -x c - -o /dev/null || true
>>
>> g++ -gno-record-gcc-switches -c -x c - -o /dev/null || true
>>
>> cd /mabain_src
>>
>> TERM='dumb' g++ -I . -fPIC -m64 -pthread -fmessage-length=0
>> -fdebug-prefix-map=$WORK/b001=/tmp/go-build -gno-record-gcc-switches -I
>> $WORK/b001/ -g -O2 -o $WORK/b001/_x003.o -c mabain_c_interface.cpp
>>
>> cd $WORK/b001
>>
>> TERM='dumb' g++ -I /mabain_src -fPIC -m64 -pthread -fmessage-length=0
>> -fdebug-prefix-map=$WORK/b001=/tmp/go-build -gno-record-gcc-switches -I ./
>> -g -O2 -o ./_x004.o -c mabain_wrap.cxx
>>
>> TERM='dumb' gcc -I /mabain_src -fPIC -m64 -pthread -fmessage-length=0
>> -fdebug-prefix-map=$WORK/b001=/tmp/go-build -gno-record-gcc-switches -I ./
>> -g -O2 -o ./_cgo_main.o -c _cgo_main.c
>>
>> cd /mabain_src
>>
>> TERM='dumb' g++ -I . -fPIC -m64 -pthread -fmessage-length=0
>> -fdebug-prefix-map=$WORK/b001=/tmp/go-build -gno-record-gcc-switches -o
>> $WORK/b001/_cgo_.o $WORK/b001/_cgo_main.o $WORK/b001/_x001.o
>> $WORK/b001/_x002.o $WORK/b001/_x003.o $WORK/b001/_x004.o -g -O2
>>
>> # _/mabain_src
>>
>> /tmp/go-build678792509/b001/_x003.o: In function `mbOpen':
>>
>> ./mabain_c_interface.cpp:10: undefined reference to
>> `mabain::CONSTS::ReaderOptions()'
>
>
> root@70c73d4a4f01:/# go version
>
> go version go1.13 linux/amd64
>
> root@70c73d4a4f01:/# swig -version
>
>
> SWIG Version 3.0.12
>
>
> Compiled with g++ [x86_64-pc-linux-gnu]
>
>
> Configured options: +pcre
>
>
> Please see http://www.swig.org for reporting bugs and further information
Oh, sorry, I see now that this is failing in the cgo step, not the link step.
Try adding this to your Go file:
// #cgo LDFLAGS: -lmabain
import "C"
Ian
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