Can't install cutorch, 'memcpy' not declared in this scope?

[Nicholas Weintraut]

Odd error I am getting when installing cutorch with luarocks install cutorch.

$ luarocks install cutorch

Installing https://raw.githubusercontent.com/torch/rocks/master/cutorch-scm-1.rockspec...

Using https://raw.githubusercontent.com/torch/rocks/master/cutorch-scm-1.rockspec... switching to 'build' mode

Cloning into 'cutorch'...

remote: Counting objects: 107, done.

remote: Compressing objects: 100% (104/104), done.

remote: Total 107 (delta 8), reused 34 (delta 1), pack-reused 0

Receiving objects: 100% (107/107), 157.05 KiB | 0 bytes/s, done.

Resolving deltas: 100% (8/8), done.

Checking connectivity... done.

cmake -E make_directory build && cd build && cmake .. -DCMAKE_BUILD_TYPE=Release -DCMAKE_PREFIX_PATH="/home/nicholas/torch/install/bin/.." -DCMAKE_INSTALL_PREFIX="/home/nicholas/torch/install/lib/luarocks/rocks/cutorch/scm-1" && make -j$(getconf _NPROCESSORS_ONLN) install

-- The C compiler identification is GNU 5.3.1

-- The CXX compiler identification is GNU 5.3.1

-- 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

-- Detecting C compile features - done

-- Check for working CXX compiler: /usr/bin/c++

-- Check for working CXX compiler: /usr/bin/c++ -- works

-- Detecting CXX compiler ABI info

-- Detecting CXX compiler ABI info - done

-- Detecting CXX compile features

-- Detecting CXX compile features - done

-- Found Torch7 in /home/nicholas/torch/install

-- Looking for pthread.h

-- Looking for pthread.h - found

-- Looking for pthread_create

-- Looking for pthread_create - not found

-- Looking for pthread_create in pthreads

-- Looking for pthread_create in pthreads - not found

-- Looking for pthread_create in pthread

-- Looking for pthread_create in pthread - found

-- Found Threads: TRUE  

-- Found CUDA: /usr/local/cuda-7.5 (found suitable version "7.5", minimum required is "6.5") 

-- MAGMA not found. Compiling without MAGMA support

-- Compiling for CUDA architecture: 5.2

-- Configuring done

-- Generating done

-- Build files have been written to: /tmp/luarocks_cutorch-scm-1-8127/cutorch/build

[  5%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCReduceApplyUtils.cu.o

[  5%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCHalf.cu.o

[  7%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCBlas.cu.o

[ 10%] Building NVCC (Device) object lib/THC/CMakeFiles/THC.dir/THC_generated_THCStorage.cu.o

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THStorage.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THStorageCopy.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THTensor.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THTensorCopy.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THTensorRandom.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THTensorMath.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THTensorConv.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THTensorLapack.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THCStorage.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THCTensor.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THStorage.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THStorageCopy.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THCStorage.h

CMake Warning at /usr/share/cmake-3.5/Modules/FindCUDA/make2cmake.cmake:65 (message):

   Removing non-existent dependency file: generic/THCStorage.cu

/usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:

/usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope

   return (char *) memcpy (__dest, __src, __n) + __n;

                                          ^

/usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:

/usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope

   return (char *) memcpy (__dest, __src, __n) + __n;

                                          ^

CMake Error at THC_generated_THCBlas.cu.o.cmake:266 (message):

  Error generating file

  /tmp/luarocks_cutorch-scm-1-8127/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCBlas.cu.o

lib/THC/CMakeFiles/THC.dir/build.make:70: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCBlas.cu.o' failed

make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCBlas.cu.o] Error 1

make[2]: *** Waiting for unfinished jobs....

CMake Error at THC_generated_THCReduceApplyUtils.cu.o.cmake:266 (message):

  Error generating file

  /tmp/luarocks_cutorch-scm-1-8127/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCReduceApplyUtils.cu.o

lib/THC/CMakeFiles/THC.dir/build.make:63: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCReduceApplyUtils.cu.o' failed

make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCReduceApplyUtils.cu.o] Error 1

/usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:

/usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope

   return (char *) memcpy (__dest, __src, __n) + __n;

                                          ^

CMake Error at THC_generated_THCHalf.cu.o.cmake:266 (message):

  Error generating file

  /tmp/luarocks_cutorch-scm-1-8127/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCHalf.cu.o

lib/THC/CMakeFiles/THC.dir/build.make:231: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCHalf.cu.o' failed

make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCHalf.cu.o] Error 1

/usr/include/string.h: In function ‘void* __mempcpy_inline(void*, const void*, size_t)’:

/usr/include/string.h:652:42: error: ‘memcpy’ was not declared in this scope

   return (char *) memcpy (__dest, __src, __n) + __n;

                                          ^

CMake Error at THC_generated_THCStorage.cu.o.cmake:266 (message):

  Error generating file

  /tmp/luarocks_cutorch-scm-1-8127/cutorch/build/lib/THC/CMakeFiles/THC.dir//./THC_generated_THCStorage.cu.o

lib/THC/CMakeFiles/THC.dir/build.make:77: recipe for target 'lib/THC/CMakeFiles/THC.dir/THC_generated_THCStorage.cu.o' failed

make[2]: *** [lib/THC/CMakeFiles/THC.dir/THC_generated_THCStorage.cu.o] Error 1

CMakeFiles/Makefile2:172: recipe for target 'lib/THC/CMakeFiles/THC.dir/all' failed

make[1]: *** [lib/THC/CMakeFiles/THC.dir/all] Error 2

Makefile:127: recipe for target 'all' failed

make: *** [all] Error 2

Error: Build error: Failed building.

I have CUDA installed, and am running Ubuntu 16.04

Anyone see these errors before?

[Andreas Köpf]

A temporary fix is to define _FORCE_INLINES, e.g. add set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D_FORCE_INLINES") to the CMakeLists.txt files of ctorch, cunn and cunnx.

See https://github.com/torch/torch7/issues/670