Package: src:node-opencv
Version: 6.0.0-2
Severity: serious
Tags: ftbfs

Hello Mattia.

I tried to build this package in sid but it failed:

--------------------------------------------------------------------------------
[...]
 debian/rules build-arch
dh build-arch --with nodejs
   dh_update_autotools_config -a
   dh_autoreconf -a
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/<<PKGBUILDDIR>>'
find /<<PKGBUILDDIR>> -name '*.xml' -exec chmod a-x {} \;
find /<<PKGBUILDDIR>> -name '*.html' -exec chmod a-x {} \;
find /<<PKGBUILDDIR>> -name '*.gyp' -exec chmod a-x {} \;
find /<<PKGBUILDDIR>> -name '*.md' -exec chmod a-x {} \;
find /<<PKGBUILDDIR>> -name '*.png' -exec chmod a-x {} \;
find /<<PKGBUILDDIR>> -name '*.jpg' -exec chmod a-x {} \;
find /<<PKGBUILDDIR>> -name '*.h' -exec chmod a-x {} \;
chmod a-x examples/make-example-files.sh

[... snipped ...]

../src/Matrix.cc:2633:69: warning: 'v8::Local<v8::Object> v8::Value::ToObject() 
const' is deprecated: Use maybe version [-Wdeprecated-declarations]
   Matrix *other = Nan::ObjectWrap::Unwrap<Matrix>(info[0]->ToObject());
                                                                     ^
In file included from ../src/OpenCV.h:14,
                 from ../src/Contours.h:1,
                 from ../src/Matrix.cc:1:
/usr/include/nodejs/deps/v8/include/v8.h:10046:15: note: declared here
 Local<Object> Value::ToObject() const {
               ^~~~~
/usr/include/nodejs/deps/v8/include/v8.h: In instantiation of 'void 
v8::PersistentBase<T>::SetWeak(P*, typename v8::WeakCallbackInfo<P>::Callback, 
v8::WeakCallbackType) [with P = node::ObjectWrap; T = v8::Object; typename 
v8::WeakCallbackInfo<P>::Callback = void (*)(const 
v8::WeakCallbackInfo<node::ObjectWrap>&)]':
/usr/include/nodejs/src/node_object_wrap.h:85:78:   required from here
/usr/include/nodejs/deps/v8/include/v8.h:9502:16: warning: cast between 
incompatible function types from 
'v8::WeakCallbackInfo<node::ObjectWrap>::Callback' {aka 'void (*)(const 
v8::WeakCallbackInfo<node::ObjectWrap>&)'} to 'Callback' {aka 'void (*)(const 
v8::WeakCallbackInfo<void>&)'} [-Wcast-function-type]
                reinterpret_cast<Callback>(callback), type);
                ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/usr/include/nodejs/deps/v8/include/v8.h: In instantiation of 'void 
v8::PersistentBase<T>::SetWeak(P*, typename v8::WeakCallbackInfo<P>::Callback, 
v8::WeakCallbackType) [with P = Nan::ObjectWrap; T = v8::Object; typename 
v8::WeakCallbackInfo<P>::Callback = void (*)(const 
v8::WeakCallbackInfo<Nan::ObjectWrap>&)]':
/usr/include/nan_object_wrap.h:66:61:   required from here
/usr/include/nodejs/deps/v8/include/v8.h:9502:16: warning: cast between 
incompatible function types from 
'v8::WeakCallbackInfo<Nan::ObjectWrap>::Callback' {aka 'void (*)(const 
v8::WeakCallbackInfo<Nan::ObjectWrap>&)'} to 'Callback' {aka 'void (*)(const 
v8::WeakCallbackInfo<void>&)'} [-Wcast-function-type]
make[2]: *** [opencv.target.mk:122: Release/obj.target/opencv/src/Matrix.o] 
Error 1
make[2]: Leaving directory '/<<PKGBUILDDIR>>/build'
gyp ERR! build error 
gyp ERR! stack Error: `make` failed with exit code: 2
gyp ERR! stack     at ChildProcess.onExit 
(/usr/share/node-gyp/lib/build.js:262:23)
gyp ERR! stack     at ChildProcess.emit (events.js:182:13)
gyp ERR! stack     at Process.ChildProcess._handle.onexit 
(internal/child_process.js:240:12)
gyp ERR! System Linux 4.9.0-8-amd64
gyp ERR! command "/usr/bin/node" "/usr/bin/node-gyp" "build" 
"--module=/<<PKGBUILDDIR>>/build/opencv/v6.0.0/Release/node-v64-linux-x64/opencv.node"
 "--module_name=opencv" 
"--module_path=/<<PKGBUILDDIR>>/build/opencv/v6.0.0/Release/node-v64-linux-x64" 
"--napi_version=3" "--node_abi_napi=napi"
gyp ERR! cwd /<<PKGBUILDDIR>>
gyp ERR! node -v v10.15.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok 
node-pre-gyp ERR! build error 
node-pre-gyp ERR! stack Error: Failed to execute 'node-gyp build 
--module=/<<PKGBUILDDIR>>/build/opencv/v6.0.0/Release/node-v64-linux-x64/opencv.node
 --module_name=opencv 
--module_path=/<<PKGBUILDDIR>>/build/opencv/v6.0.0/Release/node-v64-linux-x64 
--napi_version=3 --node_abi_napi=napi' (1)
node-pre-gyp ERR! stack     at ChildProcess.<anonymous> 
(/usr/lib/nodejs/node-pre-gyp/lib/util/compile.js:83:29)
node-pre-gyp ERR! stack     at ChildProcess.emit (events.js:182:13)
node-pre-gyp ERR! stack     at maybeClose (internal/child_process.js:962:16)
node-pre-gyp ERR! stack     at Process.ChildProcess._handle.onexit 
(internal/child_process.js:251:5)
node-pre-gyp ERR! System Linux 4.9.0-8-amd64
node-pre-gyp ERR! command "/usr/bin/node" "/usr/bin/node-pre-gyp" "build"
node-pre-gyp ERR! cwd /<<PKGBUILDDIR>>
node-pre-gyp ERR! node -v v10.15.0
node-pre-gyp ERR! node-pre-gyp -v v0.10.2
node-pre-gyp ERR! not ok 
Failed to execute 'node-gyp build 
--module=/<<PKGBUILDDIR>>/build/opencv/v6.0.0/Release/node-v64-linux-x64/opencv.node
 --module_name=opencv 
--module_path=/<<PKGBUILDDIR>>/build/opencv/v6.0.0/Release/node-v64-linux-x64 
--napi_version=3 --node_abi_napi=napi' (1)
make[1]: *** [debian/rules:26: override_dh_auto_build] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:8: build-arch] Error 2
dpkg-buildpackage: error: debian/rules build-arch subprocess returned exit 
status 2
--------------------------------------------------------------------------------

This is just how the build ends and maybe not the most relevant part, so I've
put the full build log here:

https://people.debian.org/~sanvila/build-logs/node-opencv/

A very similar error happens here in the official buildds:

https://buildd.debian.org/status/package.php?p=node%2dopencv

I guess the time elapsed between it was uploaded and it was accepted
by ftpmaster has something to do with this.

If this is really a bug in one of the build-depends, please use reassign and 
affects,
so that this is still visible in the BTS web page for this package.

Thanks.

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