x/mobile/cmd/gomobile: build fails: clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument] #29706

alx696 · 2019-01-12T08:06:38Z

What version of Go are you using (`go version`)?

go version go1.11.4 linux/amd64

Android NDK 19.0.5160253-beta2

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (`go env`)?

go env Output

$ go env
GOARCH="amd64"
GOBIN="/home/x/go/bin"
GOCACHE="/home/x/.cache/go-build"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOOS="linux"
GOPATH="/home/x/go"
GOPROXY=""
GORACE=""
GOROOT="/home/x/app/go"
GOTMPDIR=""
GOTOOLDIR="/home/x/app/go/pkg/tool/linux_amd64"
GCCGO="gccgo"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD=""
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build212459853=/tmp/go-build -gno-record-gcc-switches"

What did you do?

Run gomobile build to build an Android APK.

https://github.com/golang/go/wiki/Mobile#building-and-deploying-to-android

What did you expect to see?

Build command will build an APK named basic.apk.

What did you see instead?

x@xpc:~$ gomobile build -target=android golang.org/x/mobile/example/basic
gomobile: go build -buildmode=c-shared -o /tmp/gomobile-work-451339240/lib/armeabi-v7a/libbasic.so golang.org/x/mobile/example/basic failed: exit status 2
# runtime/cgo
clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument]

gomobile build -target=android -x golang.org/x/mobile/example/basic Output

x@xpc:~$ gomobile build -target=android -x golang.org/x/mobile/example/basic
GOMOBILE=/home/x/go/pkg/gomobile
WORK=/tmp/gomobile-work-944186541
mkdir -p $WORK/lib/armeabi-v7a
GOOS=android GOARCH=arm CC=$GOMOBILE/ndk-toolchains/arm/bin/arm-linux-androideabi-clang CXX=$GOMOBILE/ndk-toolchains/arm/bin/arm-linux-androideabi-clang++ CGO_ENABLED=1 GOARM=7 go build -x -buildmode=c-shared -o $WORK/lib/armeabi-v7a/libbasic.so golang.org/x/mobile/example/basic
rm -r -f "$WORK"
gomobile: go build -x -buildmode=c-shared -o /tmp/gomobile-work-944186541/lib/armeabi-v7a/libbasic.so golang.org/x/mobile/example/basic failed: exit status 2
WORK=/tmp/go-build950337788
mkdir -p $WORK/b041/
cd /home/x/app/go/src/runtime/cgo
CGO_LDFLAGS='"-g" "-O2" "-llog"' /home/x/app/go/pkg/tool/linux_amd64/cgo -objdir $WORK/b041/ -importpath runtime/cgo -import_runtime_cgo=false -import_syscall=false -exportheader=$WORK/b041/_cgo_install.h -- -I $WORK/b041/ -g -O2 -Wall -Werror ./cgo.go
# runtime/cgo
clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument]

The text was updated successfully, but these errors were encountered:

unicameralontology · 2019-01-19T00:09:26Z

I got this same error on go1.11.4 windows/amd64 and NDK 19.0.5232133, and got around it by making this change to an NDK script: https://android-review.googlesource.com/c/platform/ndk/+/875216

--- a/build/tools/make_standalone_toolchain.py
+++ b/build/tools/make_standalone_toolchain.py
@@ -127,7 +127,7 @@
 
     triple = get_triple(arch)
     target = make_clang_target(triple, api)
-    flags = '-target {} -stdlib=libc++'.format(target)
+    flags = '-target {}'.format(target)

and then running gomobile init again.

Seems to be related to this issue in NDK: android/ndk#849

alx696 · 2019-01-19T03:01:32Z

@unicameralontology Thanks! After remove -stdlib=libc++ from path_to_ndk/build/tools/make_standalone_toolchain.py in line 124, error gone away.

beansgum · 2019-01-19T13:26:12Z

Any way to fix this in CI build?

wejoy · 2019-03-04T02:20:16Z

When I run：

gomobile bind -target=android testmobile

I got this:

C:\User\GOPATH\bin\gomobile.exe: go build -buildmode=c-shared -o=C:\User\AppData\Local\Temp\gomobile-work-329945059\android\src\main\jniLibs\armeabi-v7a\libgojni.so gobind failed: exit status 2
# runtime/cgo
clang++.exe: error: treating 'c' input as 'c++' when in C++ mode, this behavior is deprecated [-Werror,-Wdeprecated]

go version:

go version go1.11.4 windows/amd64

go env:

set GOARCH=amd64
set GOBIN=
set GOCACHE=C:\User\AppData\Local\go-build
set GOEXE=.exe
set GOFLAGS=
set GOHOSTARCH=amd64
set GOHOSTOS=windows
set GOOS=windows
set GOPATH=C:\User\GOPATH
set GOPROXY=
set GORACE=
set GOROOT=C:\Go
set GOTMPDIR=
set GOTOOLDIR=C:\Go\pkg\tool\windows_amd64
set GCCGO=gccgo
set CC=gcc
set CXX=g++
set CGO_ENABLED=1
set GOMOD=
set CGO_CFLAGS=-g -O2
set CGO_CPPFLAGS=
set CGO_CXXFLAGS=-g -O2
set CGO_FFLAGS=-g -O2
set CGO_LDFLAGS=-g -O2
set PKG_CONFIG=pkg-config
set GOGCCFLAGS=-m64 -mthreads -fmessage-length=0 -fdebug-prefix-map=C:\User\AppData\Local\Temp\go-build327219370=/tmp/go-build -gno-record-gcc-switches

NDK Version:

19.1.5304403

Does anyone know what's going on?

beansgum · 2019-03-04T02:26:28Z

I fixed mine some time ago by manually downloading a specific version of ndk where I know I won't encounter this error.

wget -O $ANDROID_HOME/android-ndk-r19b-linux-x86_64.zip https://dl.google.com/android/repository/android-ndk-r19b-linux-x86_64.zip
unzip -qq $ANDROID_HOME/android-ndk-r19b-linux-x86_64.zip -d $ANDROID_HOME/android-ndk-r19b-linux-x86_64
mv $ANDROID_HOME/android-ndk-r19b-linux-x86_64/android-ndk-r19b $ANDROID_HOME/ndk-bundle
export ANDROID_NDK_HOME=$ANDROID_HOME/ndk-bundle

Here's my complete CI script

gopherbot added this to the Unreleased milestone Jan 12, 2019

gopherbot added the mobile Android, iOS, and x/mobile label Jan 12, 2019

alx696 closed this as completed Jan 19, 2019

adambabik mentioned this issue Jan 25, 2019

Add initial gomobile support status-im/status-go#1164

Merged

3 tasks

r0l1 mentioned this issue Jan 31, 2019

compilation error clang80: error: argument unused during compilation: '-stdlib=libc++' openssl/openssl#8062

Closed

golang locked and limited conversation to collaborators Mar 3, 2020

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x/mobile/cmd/gomobile: build fails: clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument] #29706

x/mobile/cmd/gomobile: build fails: clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument] #29706

alx696 commented Jan 12, 2019

unicameralontology commented Jan 19, 2019

alx696 commented Jan 19, 2019

beansgum commented Jan 19, 2019

wejoy commented Mar 4, 2019 •

edited

beansgum commented Mar 4, 2019 •

edited

x/mobile/cmd/gomobile: build fails: clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument] #29706

x/mobile/cmd/gomobile: build fails: clang80: error: argument unused during compilation: '-stdlib=libc++' [-Werror,-Wunused-command-line-argument] #29706

Comments

alx696 commented Jan 12, 2019

What version of Go are you using (go version)?

Does this issue reproduce with the latest release?

What operating system and processor architecture are you using (go env)?

What did you do?

What did you expect to see?

What did you see instead?

unicameralontology commented Jan 19, 2019

alx696 commented Jan 19, 2019

beansgum commented Jan 19, 2019

wejoy commented Mar 4, 2019 • edited

When I run：

I got this:

go version:

go env:

NDK Version:

Does anyone know what's going on?

beansgum commented Mar 4, 2019 • edited

What version of Go are you using (`go version`)?

What operating system and processor architecture are you using (`go env`)?

wejoy commented Mar 4, 2019 •

edited

beansgum commented Mar 4, 2019 •

edited