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Arun, The error in your make.out file: /usr/vac/bin/xlc -DHAVE_CONFIG_H -I. -I. -I. -I./include -I./include -D_REENTRANT -I/gpfs1/software/gempak/GEMPAK5.11.4/os/aix/include -DAIX -I/gpfs1/software/gempak/GEMPAK5.11.4/gempak/include -I/gpfs1/software/gempak/GEMPAK5.11.4/os/aix/include -qnolm -c -M nanoftp.c -o nanoftp.o "nanoftp.c", line 1382.25: 1506-022 (S) "__ss_family" is not a member of "struct sockaddr_storage". ... appears to be caused by multiple definitions for ss_family in both config.h and /usr/include/sys/socket.h one solution offered by a user with a similar problem but dealing with different software was to add the option --enable-ipv6=no to $NAWIPS/config/Makeinc.aix: replace the line COPT = -D$(OPSYS) $(GEMINC) -qnolm with COPT = -D$(OPSYS) $(GEMINC) -qnolm --enable-ipv6=no and then rebuild from $NAWIPS Michael James Unidata > Hi Michael, > > We start a fresh copy of compilation, which is also producing error during > compilation. Please find attach of make.out > > Regards > Arun Chaudhary > Ticket Details =================== Ticket ID: YZI-806704 Department: Support GEMPAK Priority: Normal Status: Open