Note (probably harmless): No library found for -lfftw3 Checking if your kit is complete... Looks good 'LICENSE' is not a known MakeMaker parameter name. Writing Makefile for Math::FFTW cp lib/Math/FFTW.pm blib/lib/Math/FFTW.pm /home/cpanrun/ia64-lp64/build/5.6.1/bin/perl -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi-64all -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1 /home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/ExtUtils/xsubpp -typemap /home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/ExtUtils/typemap FFTW.xs > FFTW.xsc && mv FFTW.xsc FFTW.c Please specify prototyping behavior for FFTW.xs (see perlxs manual) gcc -c -I. -DUSE_REENTRANT_API -D_POSIX_C_SOURCE=199506L -D_HPUX_SOURCE -mlp64 -L/lib/hpux64 -DUINT32_MAX_BROKEN -fPIC -fno-strict-aliasing -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -O -DVERSION=\"0.01\" -DXS_VERSION=\"0.01\" -fPIC -I/home/cpanrun/ia64-lp64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi-64all/CORE FFTW.c FFTW.xs:4:19: fftw3.h: No such file or directory FFTW.xs: In function `XS_Math__FFTW_fftw_dft_real2complex_1d': FFTW.xs:14: error: `fftw_complex' undeclared (first use in this function) FFTW.xs:14: error: (Each undeclared identifier is reported only once FFTW.xs:14: error: for each function it appears in.) FFTW.xs:14: error: `out' undeclared (first use in this function) FFTW.xs:17: error: `fftw_plan' undeclared (first use in this function) FFTW.xs:17: error: parse error before "p" FFTW.xs:30: warning: cast to pointer from integer of different size FFTW.xs:31: error: parse error before ')' token FFTW.xs:35: error: `p' undeclared (first use in this function) FFTW.xs:35: error: `FFTW_ESTIMATE' undeclared (first use in this function) FFTW.xs: In function `XS_Math__FFTW_fftw_idft_complex2real_1d': FFTW.xs:60: error: `fftw_complex' undeclared (first use in this function) FFTW.xs:60: error: `in' undeclared (first use in this function) FFTW.xs:64: error: `fftw_plan' undeclared (first use in this function) FFTW.xs:64: error: parse error before "p" FFTW.xs:78: warning: cast to pointer from integer of different size FFTW.xs:79: error: parse error before ')' token FFTW.xs:85: error: `p' undeclared (first use in this function) FFTW.xs:85: error: `FFTW_ESTIMATE' undeclared (first use in this function) make: *** [FFTW.o] Error 1