Bug#901111: libgpuarray: FTBFS when built with dpkg-buildpackage -A

[Santiago Vila]

Package: src:libgpuarray
Version: 0.6.9-2
Severity: serious

Dear maintainer:

I tried to build this package in stretch with "dpkg-buildpackage -A"
but it failed:

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[...]
 debian/rules build-indep
dh build-indep --with python2,python3,sphinxdoc --buildsystem=pybuild
   dh_update_autotools_config -i -O--buildsystem=pybuild
   dh_autoreconf -i -O--buildsystem=pybuild
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_configure --buildsystem=cmake
	cd obj-x86_64-linux-gnu && cmake .. -DCMAKE_INSTALL_PREFIX=/usr -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_BUILD_TYPE=None -DCMAKE_INSTALL_SYSCONFDIR=/etc -DCMAKE_INSTALL_LOCALSTATEDIR=/var -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY=ON -DCMAKE_FIND_PACKAGE_NO_PACKAGE_REGISTRY=ON "-GUnix Makefiles"
-- The C compiler identification is GNU 7.3.0
-- Check for working C compiler: /usr/bin/cc
-- Check for working C compiler: /usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features

[... snipped ...]

I: pybuild base:217: python2.7 setup.py config 
Compiling pygpu/gpuarray.pyx because it changed.
Compiling pygpu/blas.pyx because it changed.
Compiling pygpu/_elemwise.pyx because it changed.
Compiling pygpu/collectives.pyx because it changed.
[1/4] Cythonizing pygpu/_elemwise.pyx
[2/4] Cythonizing pygpu/blas.pyx
[3/4] Cythonizing pygpu/collectives.pyx
[4/4] Cythonizing pygpu/gpuarray.pyx
running config
I: pybuild base:217: python2.7-dbg setup.py config 
running config
I: pybuild base:217: python3.6 setup.py config 
running config
I: pybuild base:217: python3.6-dbg setup.py config 
running config
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   debian/rules override_dh_auto_build-indep
make[1]: Entering directory '/<<PKGBUILDDIR>>'
python3 setup.py build_ext --inplace -I /<<PKGBUILDDIR>>/src -L /<<PKGBUILDDIR>>/lib
running build_ext
building 'pygpu.gpuarray' extension
creating build
creating build/temp.linux-x86_64-3.6
creating build/temp.linux-x86_64-3.6/pygpu
x86_64-linux-gnu-gcc -pthread -DNDEBUG -g -fwrapv -O2 -Wall -Wstrict-prototypes -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -fPIC -DGPUARRAY_SHARED -I/usr/lib/python3/dist-packages/numpy/core/include -I/<<PKGBUILDDIR>>/src -I/usr/include/python3.6m -c pygpu/gpuarray.c -o build/temp.linux-x86_64-3.6/pygpu/gpuarray.o -Wno-unused-variable -Wno-unused-function
In file included from /usr/lib/python3/dist-packages/numpy/core/include/numpy/ndarraytypes.h:1816:0,
                 from /usr/lib/python3/dist-packages/numpy/core/include/numpy/ndarrayobject.h:18,
                 from /usr/lib/python3/dist-packages/numpy/core/include/numpy/arrayobject.h:4,
                 from pygpu/gpuarray.c:514:
/usr/lib/python3/dist-packages/numpy/core/include/numpy/npy_1_7_deprecated_api.h:15:2: warning: #warning "Using deprecated NumPy API, disable it by " "#defining NPY_NO_DEPRECATED_API NPY_1_7_API_VERSION" [-Wcpp]
 #warning "Using deprecated NumPy API, disable it by " \
  ^~~~~~~
creating build/lib.linux-x86_64-3.6
creating build/lib.linux-x86_64-3.6/pygpu
x86_64-linux-gnu-gcc -pthread -shared -Wl,-O1 -Wl,-Bsymbolic-functions -Wl,-z,relro -Wl,-z,relro -Wl,-z,now -g -O2 -fdebug-prefix-map=/<<PKGBUILDDIR>>=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 build/temp.linux-x86_64-3.6/pygpu/gpuarray.o -L/<<PKGBUILDDIR>>/lib -lgpuarray -o build/lib.linux-x86_64-3.6/pygpu/gpuarray.cpython-36m-x86_64-linux-gnu.so
/usr/bin/ld: cannot find -lgpuarray
collect2: error: ld returned 1 exit status
error: command 'x86_64-linux-gnu-gcc' failed with exit status 1
debian/rules:39: recipe for target 'override_dh_auto_build-indep' failed
make[1]: *** [override_dh_auto_build-indep] Error 1
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
debian/rules:15: recipe for target 'build-indep' failed
make: *** [build-indep] Error 2
dpkg-buildpackage: error: debian/rules build-indep subprocess returned exit status 2
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To reproduce, please try "dpkg-buildpackage -A".
(The error does not happen with "dpkg-buildpackage").

Thanks.