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3.3 Building on 64 Bit Platforms

NetCDF-4 has not yet been tested in 64-bit mode on any platform. However, the compiler options for SunOS, Irix, and AIX are listed below. The zlib and HDF5 libraries must also be built with 64-bit options.

AIX
Set -q64 option in all compilers, and set NMFLAGS to -X64, and ARFLAGS to '-X64 cru'. Alternatively, set environment variable OBJECT_MODE to 64 before running configure.
IRIX
Set the -64 option in all compilers.
SunOS
Use the -xarch=v9 or -m64 flag on all compilers for Sparc, or -m64 on x86 platforms.