Note (probably harmless): No library found for -lgsl Note (probably harmless): No library found for -lgslcblas Checking if your kit is complete... Looks good Writing Makefile for Math::GSL cp GSL.pm blib/lib/Math/GSL.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 GSL.xs > GSL.xsc && mv GSL.xsc GSL.c gcc -c -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 GSL.c GSL.xs:4:27: gsl/gsl_errno.h: No such file or directory GSL.xs:5:26: gsl/gsl_poly.h: No such file or directory GSL.xs: In function `XS_Math__GSL_poly_complex_solve': GSL.xs:31: error: `gsl_poly_complex_workspace' undeclared (first use in this function) GSL.xs:31: error: (Each undeclared identifier is reported only once GSL.xs:31: error: for each function it appears in.) GSL.xs:31: error: `w' undeclared (first use in this function) GSL.xs:36: error: `GSL_SUCCESS' undeclared (first use in this function) make: *** [GSL.o] Error 1