Checking if your kit is complete... Looks good Writing Makefile for CzFast cp CzFast.pm blib/lib/CzFast.pm /home/cpanrun/ia64/build/5.8.2/bin/perl /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/ExtUtils/xsubpp -typemap /home/cpanrun/ia64/build/5.8.2/lib/5.8.2/ExtUtils/typemap CzFast.xs > CzFast.xsc && mv CzFast.xsc CzFast.c cc -c -D_POSIX_C_SOURCE=199506L -D_REENTRANT -Ae -D_HPUX_SOURCE -Wl,+vnocompatwarnings -DNO_HASH_SEED -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -fast +DSitanium2 +Ofltacc=strict -DVERSION=\"0.10\" -DXS_VERSION=\"0.10\" +Z "-I/home/cpanrun/ia64/build/5.8.2/lib/5.8.2/IA64.ARCHREV_0-thread-multi/CORE" CzFast.c Warning 942: "CzFast.xs", line 117 # Types 'const char *' and 'unsigned char *' are not assignment-compatible. const int str_len = strlen(str_from); ^^^^^^^^ Error 176: "CzFast.xs", line 118 # Size of array must be an integral constant expression of value greater than 0. unsigned char str_to[str_len + 1]; ^^^^^^^^^^^ Warning 942: "CzFast.c", line 168 # Types 'const char *' and 'unsigned char *' are not assignment-compatible. rpreter *) pthread_getspecific((*Perl_Gthr_key_ptr(0L)))), targ,RETVAL) ; (sp = (*Perl_Tstack_base_ptr( ((PerlInterpreter *) pth ^^^^^^ make: *** [CzFast.o] Error 2