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Hi Jim, re: > Thanks for this. I was silly... installed flex and bison and looks like were > to > the next issue. Makelog attached. Hmm... The output from your latest 'makelog' seems to indicate that there is problem running 'bison': source='main.c' object='main.o' libtool=no depfile='.deps/main.Po' tmpdepfile='.deps/main.TPo' depmode=none /bin/sh ../../bin/depcomp cc -DHAVE_CONFIG_H -I. -I. -I../../hdf/src -I../../hdf/src -I../../mfhdf/libsrc -I../../mfhdf/port -I../libsrc -I../../hdf/src -I../../mfhdf/libsrc -I../../mfhdf/port -I../libsrc -DNDEBUG -DHDF -I/usr/include/rpc -DNDEBUG -I/home/weather/mcidas2007/hdf/../zlib -I/home/weather/mcidas2007/hdf/../jpeg -O -D_ALL_SOURCE -qlanglvl=ansi -O -c `test -f 'main.c' || echo './'`main.c flex ./ncgen.l mv lex.yy.c ncgenyy.c bison -y -d ./ncgen.y make: The signal code from the last command is 13. /usr/include/sys/signal.h on our AIX 5.1 system shows that a signal 13 is a SIGPIPE: #define SIGSYS 12 /* (*) bad argument to system call */ #define SIGPIPE 13 /* write on a pipe with no one to read it */ #define SIGALRM 14 /* alarm clock timeout */ This doesn't make much sense to me!! Do you have any ideas about this? Cheers, Tom **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: HCS-801574 Department: Support McIDAS Priority: Normal Status: Closed