Checking if your kit is complete... Looks good Writing Makefile for Math::SO3 cp SO3.pm blib/lib/Math/SO3.pm AutoSplitting blib/lib/Math/SO3.pm (blib/lib/auto/Math/SO3) /home/cpanrun/ia64-lp64/build/5.8.2/bin/perl /home/cpanrun/ia64-lp64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/ia64-lp64/build/5.8.2/lib/5.8.2/ExtUtils/typemap SO3.xs > SO3.xsc && mv SO3.xsc SO3.c Please specify prototyping behavior for SO3.xs (see perlxs manual) cc -c -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 +DSitanium2 +Ofltacc=strict -DVERSION=\"0.90\" -DXS_VERSION=\"0.90\" +Z "-I/home/cpanrun/ia64-lp64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi-LP64/CORE" SO3.c Error 20: "SO3.xs", line 36 # ';' expected before 'double'. static inline double my_acos(double x) ^^^^^^ Error 20: "SO3.xs", line 44 # ';' expected before 'void'. static inline void do_turn(Math__SO3 so3, int axis, double angle) ^^^^ Error 20: "SO3.xs", line 251 # ';' expected before 'void'. static inline void do_turn_debug(Math__SO3 so3, int axis, double angle) ^^^^ Warning 942: "SO3.xs", line 721 # Types 'char *' and 'int' are not assignment-compatible. || 0==(cdir=alloca(1+3*sizeof(double)))) ^^^^^^^^^^^^^^^^^^^^^^^^^^ make: *** [SO3.o] Error 2