Right - I knew it was something like this. So here's the reason I haven't upgraded AFNI - I get this error trying to run afni:

% afni --version
ld.so.1: afni: fatal: libm.so.2: version `SUNW_1.2' not found (required by file /amd_mnt/app/mr/sw/bin/afni_packages/solaris29_suncc_64/afni)
ld.so.1: afni: fatal: libm.so.2: open failed: No such file or directory
Killed

% ldd /app/mr/sw/bin/afni_packages/solaris29_suncc_64/afni
libXm.so.4 => /usr/lib/64/libXm.so.4
libXt.so.4 => /usr/lib/64/libXt.so.4
libX11.so.4 => /usr/lib/64/libX11.so.4
libz.so.1 => /usr/lib/64/libz.so.1
libm.so.2 => /app/mr/sw/bin/usr/local/lib/libm.so.2
libm.so.2 (SUNW_1.2) => (version not found)
libsocket.so.1 => /usr/lib/64/libsocket.so.1
libnsl.so.1 => /usr/lib/64/libnsl.so.1
libgen.so.1 => /usr/lib/64/libgen.so.1
libdl.so.1 => /usr/lib/64/libdl.so.1
libc.so.1 => /usr/lib/64/libc.so.1
libXext.so.0 => /usr/openwin/lib/sparcv9/libXext.so.0
libSM.so.6 => /usr/openwin/lib/sparcv9/libSM.so.6
libICE.so.6 => /usr/openwin/lib/sparcv9/libICE.so.6
libmp.so.2 => /usr/lib/64/libmp.so.2
/usr/platform/SUNW,Sun-Blade-2500/lib/sparcv9/libc_psr.so.1