Question

i have a huge CU file which contains my project , im trying to separate it into small CU files , but im getting many gl.h errors , i dont know what to do… it’s driving me crazy..

1>  Compiling CUDA source file core.cu...
1>  
1>  C:\Users\igal\Desktop\prj trying to devide files\graph>"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0\bin\nvcc.exe" -gencode=arch=compute_10,code=\"sm_10,compute_10\" --use-local-env --cl-version 2010 -ccbin "c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin"  -I"C:\Program Files\NVIDIA GPU Computing Toolkit\CUDA\v4.0\include"  -G0  --keep-dir "Debug" -maxrregcount=0  --machine 32 --compile  -D_NEXUS_DEBUG -g    -Xcompiler "/EHsc /nologo /Od /Zi  /MDd " -o "Debug\core.cu.obj" "C:\Users\igal\Desktop\prj trying to devide files\graph\core.cu" 
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1152): error : this declaration has no storage class or type specifier
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1152): error : expected a ";"
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1153): error : this declaration has no storage class or type specifier
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1153): error : variable "WINGDIAPI" has already been defined
1>c:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\include\GL/gl.h(1153): error : expected a ";"

and the list goes on..

Answer 1

Since you’re on Windows, make sure that you include windows.h before including gl.h, or any other file which may indirectly include gl.h.

As stated on MSDN, this is necessary for OpenGL to work.