On 12-09-17 3:56 AM, Franckx Laurent wrote:
Dear all,
I have problems loading a library in the 64 version of R.
The following happens:
· I have a file, equildistC.cpp, which contains a few lines of C++ code.
· I have compiled the file using the following commands:
PATH =
c:\Rtools\bin;C:\Rtools\gcc-4.6.3\bin;C:\Rtools\gcc-4.6.3\bin64;C:\Rtools\gcc-4.6.3\i686-w64-mingw32;C:\R-2.15.1\bin\i386;C:\R-2.15.1\bin\x64;c:\windows;c:\windows\system32;C:\Windows\SysWOW64
R --arch x64 CMD SHLIB equildistC.cpp
That runs the 32 bit version of R (since you list it first in your
path). I don't see any docs that state that it will pay attention to
the --arch directive. (The docs say that syntax is supported under
Unix-alikes, not under Windows.)
· I have received no messages indicating problem during compilation,
and both the equildistC.o and the equildistC.dll have been created.
· When I load the dll in the 32bit version of R with
dyn.load("C:\\Ccodefortransortmodel\\equildistC.dll"), things appear to go well.
· However, in the 64 bit version, I get the message:
Error in inDL(x, as.logical(local), as.logical(now), ...) :
unable to load shared object 'C:/Ccodefortransortmodel/equildistC.dll':
LoadLibrary failure: %1 is not a valid Win32 application.
I have googled the error message. Initially I had omitted “--arch x64” when
compiling the file, but even after specifying the architecture, the error
persists.
However, I definitely need to be able to run my code on the 64 version.
Then you should take the 32 bit version out of your path.
Duncan Murdoch
Kind regards
Laurent
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