vcvars32 surely will set x32 vcvars32 surely will set x32 environment. To rebuild 64-bit libraw.dll I succesfully use this: call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" x64 nmake -f Makefiile.msvc -- Alex Tutubalin @LibRaw LLC reply
vcvars32 surely will set x32 environment.
To rebuild 64-bit libraw.dll I succesfully use this: