Hi netcdf group:
We have installed netcdf 3.5 on a Linux system running RedHat 7.3.
I am using pgf90 4.0-2 to compile a small f90 code, and am getting
"undefined reference" errors:
(sundog) foster : gmake
pgf90 -c -I/opt/local/include rdmgcm.F
pgf90 -c -I/opt/local/include mkcdf.F
pgf90 -c -I/opt/local/include mkncfile.F
pgf90 -o mkcdf mkcdf.o mkncfile.o rdmgcm.o -L/opt/local/lib
-lnetcdf
mkncfile.o: In function `mkncfile_':
mkncfile.o(.text+0x110): undefined reference to `nf_create_'
mkncfile.o: In function `handle_ncerr_':
mkncfile.o(.text+0x77a): undefined reference to `nf_strerror_'
gmake: *** [mkcdf] Error 2
(sundog) foster :
I am using #include "netcdf.inc" in mkncfile.F, and it is apparently
finding this file in /opt/local/include. The lib libnetcdf.a is in
/opt/local/lib, and it has both nf_create and nf_strerror.
I will attach the Makefile and mkncfile.F. Thanks for any suggestions,
--Ben
-----------------------------------------------------------------------
Ben Foster High Altitude Observatory (HAO)
foster@xxxxxxxx phone: 303-497-1595 fax: 303-497-1589
Nat. Center for Atmos. Res. P.O. Box 3000 Boulder CO 80307 USA
-----------------------------------------------------------------------
#
UNAMES = $(shell uname -s)
#-----------------------------------------------------------------------
ifeq ($(UNAMES),Linux)
SHELL=/bin/csh
EXEC = mkcdf
FC = pgf90
#FFLAGS = -I/local/d/foster/netcdf-3.5.0/include
#LIBS = -L/local/d/foster/netcdf-3.5.0/lib -lnetcdf
FFLAGS = -I/opt/local/include
LIBS = -L/opt/local/lib -lnetcdf
LDFLAGS
endif
#-----------------------------------------------------------------------
ifeq ($(UNAMES),SunOS)
SHELL=/bin/csh
EXEC = mkcdf
FC = f90
FFLAGS = -I/opt/local/include
LIBS = -L/opt/local/lib -lnetcdf
LDFLAGS
endif
#-----------------------------------------------------------------------
#
.SUFFIXES: .F
include Objects
#OBJS = mkcdf.F rdmgcm.F mkncfile.F
$(EXEC): $(OBJS)
$(FC) -o $@ $(OBJS) $(LDFLAGS) $(LIBS)
include Depends
.f.o:
$(FC) -c $(FFLAGS) $<
.F.o:
$(FC) -c $(FFLAGS) $<
!
subroutine mkncfile(fileout)
implicit none
#include "netcdf.inc"
!
! Args:
character(len=*),intent(in) :: fileout
!
! Local:
integer,save :: ncalls=0
integer :: istat,ncid
character(len=120) :: char120
!
ncalls = ncalls+1
write(6,"('mkncfile: ncalls=',i4)") ncalls
if (ncalls == 1) then
istat = nf_create(fileout,NF_CLOBBER,ncid)
if (istat /= NF_NOERR) then
write(char120,"('Error return from nf_create for netcdf ',
| 'file ',a)") trim(fileout)
call handle_ncerr(istat,char120)
ncid = 0
else
write(6,"('Created netcdf file ',a,' ncid=',i8)")
| trim(fileout),ncid
endif
endif
end subroutine mkncfile
!-------------------------------------------------------------------
subroutine handle_ncerr(istat,msg)
implicit none
#include "netcdf.inc"
!
! Handle a netcdf lib error:
!
integer,intent(in) :: istat
character(len=*),intent(in) :: msg
!
write(6,"(/72('-'))")
write(6,"('>>> Error from netcdf library:')")
write(6,"(a)") trim(msg)
write(6,"('istat=',i5)") istat
write(6,"(a)") nf_strerror(istat)
write(6,"(72('-')/)")
return
end subroutine handle_ncerr
