SIZEOF_INTPTR_T not defined in msvc builds
Change 1bfda600 added a block of helper code to src/common/compat.h that assumes SIZEOF_INTPTR_T is defined. While this is the case for configure-driven builds (defines available since 2004), for the prepared win32 config the define is nowhere to be found. This causes a compilation error.
I looked and saw that torint.h introduces type intptr_t when HAVE_INTPTR_T is not present. Also, it does
#if (SIZEOF_INTPTR_T != 0) #define HAVE_INTPTR_T, so just defining it in orconfig.h would actually break this code. My first guess is that torint.h should define the sizeof at the moment it adds the intptr_t typedef. There might be better solutions.
PS: uintptr_t should be dealt with as well.