Checking if your kit is complete...
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Writing Makefile for Filesys::Statfs
cp Statfs.pm blib/lib/Filesys/Statfs.pm
/export/home/cpanrun/build/5.6.1/bin/perl -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi -I/export/home/cpanrun/build/5.6.1/lib/5.6.1 /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp  -typemap /export/home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap -typemap typemap Statfs.xs > Statfs.xsc && mv Statfs.xsc Statfs.c
Please specify prototyping behavior for Statfs.xs (see perlxs manual)
gcc -c  -DUSE_REENTRANT_API -D_POSIX_PTHREAD_SEMANTICS -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O   -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC -I/export/home/cpanrun/build/5.6.1/lib/5.6.1/sun4-solaris-thread-multi/CORE  Statfs.c
Statfs.xs: In function `XS_Filesys__Statfs_statfs':
Statfs.xs:24: too few arguments to function `statfs'
Statfs.xs:27: structure has no member named `f_type'
Statfs.xs:31: structure has no member named `f_bavail'
make: *** [Statfs.o] Error 1