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2.3 Building on 64 Bit Platforms

Some platforms support special options to build in 64-bit mode.

NetCDF 3.6.0 beta has been tested as 64-bit builds on SunOS and AIX. The options needed to build in 64-bit mode are described here.

AIX
Set -q64 option in all compilers, and set NMFLAGS to -X32, and ARFLAGS to '-X32 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 flag on all compilers. This is not supported on the x86 platform.