Checking if your kit is complete...
Looks good
Note (probably harmless): No library found for -lread
Writing Makefile for Bio::SCF
cp SCF/Arrays.pm blib/lib/Bio/SCF/Arrays.pm
cp SCF.pm blib/lib/Bio/SCF.pm
/home/cpanrun/build/5.6.1/bin/perl -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi -I/home/cpanrun/build/5.6.1/lib/5.6.1 /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp  -typemap /home/cpanrun/build/5.6.1/lib/5.6.1/ExtUtils/typemap SCF.xs > SCF.xsc && mv SCF.xsc SCF.c
Please specify prototyping behavior for SCF.xs (see perlxs manual)
gcc -c  -DUSE_REENTRANT_API -D_GNU_SOURCE -D_REENTRANT -fno-strict-aliasing -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O2   -DVERSION=\"1.01\" -DXS_VERSION=\"1.01\" -fpic -I/home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE -DLITTLE_ENDIAN SCF.c
In file included from /usr/include/sys/types.h:191,
                 from /home/cpanrun/build/5.6.1/lib/5.6.1/i686-linux-thread-multi/CORE/perl.h:441,
                 from SCF.xs:5:
/usr/include/endian.h:44: warning: `LITTLE_ENDIAN' redefined
*Initialization*:1: warning: this is the location of the previous definition
SCF.xs:12: io_lib/scf.h: No such file or directory
SCF.xs:13: io_lib/mFILE.h: No such file or directory
make: *** [SCF.o] Error 1