[git master] Build error: ‘tcuGetErrorName’ undeclared (and others)

[bermond]

I'm getting the following error when trying to build ffmpeg git master:

CC      libavfilter/vf_scale_cuda.o
In file included from libavfilter/vf_scale_cuda.c:31:
./libavutil/cuda_check.h: In function ‘ff_cuda_check’:
./libavutil/cuda_check.h:38:7: error: ‘tcuGetErrorName’ undeclared (first use in this function); did you mean ‘cuGetErrorName’?
     ((tcuGetErrorName *)cuGetErrorName_fn)(err, &err_name);
       ^~~~~~~~~~~~~~~
       cuGetErrorName
./libavutil/cuda_check.h:38:7: note: each undeclared identifier is reported only once for each function it appears in
./libavutil/cuda_check.h:38:24: error: expected expression before ‘)’ token
     ((tcuGetErrorName *)cuGetErrorName_fn)(err, &err_name);
                        ^
./libavutil/cuda_check.h:39:7: error: ‘tcuGetErrorString’ undeclared (first use in this function); did you mean ‘cuGetErrorString’?
     ((tcuGetErrorString *)cuGetErrorString_fn)(err, &err_string);
       ^~~~~~~~~~~~~~~~~
       cuGetErrorString
./libavutil/cuda_check.h:39:26: error: expected expression before ‘)’ token
     ((tcuGetErrorString *)cuGetErrorString_fn)(err, &err_string);
                          ^
make: *** [ffbuild/common.mak:60: libavfilter/vf_scale_cuda.o] Error 1

• A git bisect shows that this is caused by commit ​15c6390.

• Possibly related ticket: #7735.

How to reproduce:

$ git clone https://git.ffmpeg.org/ffmpeg.git
$ cd ffmpeg
$ ./configure --prefix='/usr' --extra-cflags='-I/opt/cuda/include' --extra-ldflags='-L/opt/cuda/lib64' --enable-nonfree --enable-cuda-sdk
$ make -j1

System Information:

• OS: Arch Linux x86_64
• ffmpeg: git master
• Compiler: gcc 8.2.1
• CUDA: 10.0.130

[Carl Eugen Hoyos]

See #7742.

[bermond]

Thanks.