Checking if your kit is complete... Looks good Writing Makefile for Crypt::Square cp Square.pm blib/lib/Crypt/Square.pm /home/cpanrun/parisc2.0-lp64/build/5.8.2/bin/perl /home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/ExtUtils/typemap -typemap typemap Square.xs > Square.xsc && mv Square.xsc Square.c cc -c -I. -D_POSIX_C_SOURCE=199506L -D_REENTRANT -Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings +DD64 -DNO_HASH_SEED -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fast +Onolimit +Opromote_indirect_calls -DVERSION=\"1.0.0\" -DXS_VERSION=\"1.0.0\" +Z "-I/home/cpanrun/parisc2.0-lp64/build/5.8.2/lib/5.8.2/PA-RISC2.0-thread-multi-LP64/CORE" Square.c cpp: "_square.c", line 1474: error 4062: "Either LITTLE_ENDIAN or BIG_ENDIAN must be defined" make: *** [Square.o] Error 1