The following issue has been SUBMITTED.
======================================================================
https://cmake.org/Bug/view.php?id=16031
======================================================================
Reported By: Thibault Notargiacomo
Assigned To:
======================================================================
Project: CMake
Issue ID: 16031
Category: CMake
Reproducibility: always
Severity: major
Priority: high
Status: new
======================================================================
Date Submitted: 2016-03-22 13:09 EDT
Last Modified: 2016-03-22 13:09 EDT
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Summary: FindCUDA.cmake - CUDA_SEPARABLE_COMPILATION fails
because of escape character
Description:
When using
set( CUDA_SEPARABLE_COMPILATION ON )
in cunjunction with
find_package(CUDA 7.5 REQUIRED)
I get a problem in the make command generated for the link with the intermediate
object file, especially, the "-ccbin" option that should give to the cuda
command line the $CXX variable (in my case).
Steps to Reproduce:
Try to setup in a directory the following files:
===================================================
test.cu:
#include "test.cu.h"
#include "thrust/device_vector.h"
void A::doIt()
{
thrust::device_vector<float> a(10,10);
std::cout <<"A = "<<a[0]<<std::endl;
}
===================================================
test.cu.h:
#include <iostream>
class A
{
public:
A()=default;
virtual ~A()=default;
virtual void doIt();
private:
int m_a;
};
===================================================
main.cpp:
#include <cstdlib>
#include "test.cu.h"
int main(int argc, char* argv[])
{
A a;
a.doIt();
return EXIT_SUCCESS;
}
===================================================
CMakeLists.txt:
cmake_minimum_required (VERSION 3.5)
ADD_DEFINITIONS( ${CMAKE_CXX_FLAGS} "-std=c++11" )
find_package(CUDA 7.5 REQUIRED)
set( CUDA_SEPARABLE_COMPILATION ON )
cuda_add_executable( testit test.cu main.cpp )
Additional Information:
Extract of the build.make file that I had to modify in order to bypass the
problem temporarily:
CMakeFiles/testit.dir/testit_intermediate_link.o:
CMakeFiles/testit.dir/testit_generated_test.cu.o
@$(CMAKE_COMMAND) -E cmake_echo_color --switch=$(COLOR) --blue --bold
--progress-dir=/home/technic105/Documents/test/cmake35Bug/CMakeFiles
--progress-num=$(CMAKE_PROGRESS_2) "Building NVCC intermediate link file
CMakeFiles/testit.dir/testit_intermediate_link.o"
/usr/local/cuda/bin/nvcc -m64 -ccbin
\"/opt/rh/devtoolset-2/root/usr/bin/gcc\"
-dlink
/home/technic105/Documents/test/cmake35Bug/CMakeFiles/testit.dir//./testit_generated_test.cu.o
-o
/home/technic105/Documents/test/cmake35Bug/CMakeFiles/testit.dir/./testit_intermediate_link.o
Notice the -ccbin \"/opt/rh/devtoolset-2/root/usr/bin/gcc\" that causes the
build to fail on my machine
======================================================================
Issue History
Date Modified Username Field Change
======================================================================
2016-03-22 13:09 Thibault NotargiacomoNew Issue
======================================================================
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