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Richard, Thanks for the complete report, made it much easier to find the problem. It seems that your netcdf library has a problem because that's where the ncopts variable is defined. You can look at the variables in the library using a utility such as nm or ar. % nm libnetcdf.a | m ... ... [23] | 356| 72|FUNC |GLOB |0 |2 |ncopen [10] | 4| 4|OBJT |GLOB |0 |3 |ncopts Also in the log it stated other variables were missing from the libnetcdf.a A common way to debug these types of problems is to compile with the -E option and redirect into a .I file. ie % cc -E -g -I/upc/netcdf/include -I/upc/udunits/include nc.c > nc.I extern int ncopts; I know the above message is terse, but it gave me a clue to look at the libraries. Hope this helps. Robb... On Mon, 8 Mar 2004, Unidata Support wrote:
# This file is for customizing the configuation process performed by # `./configuration'. This file consists of sh(1) variable-definition lines. # The value given to those variable by this file will override their default # values. # # You can also customize the configuration process via the environment # variables seen by ./configure. For example: # # In csh(1): # % setenv CC acc # & setenv CFLAGS -g # % ./configure # # In sh(1): # $ CC=acc CFLAGS=-g ./configure # # Variables in this file override the environmental ones. # ############################################################################# # # netCDF header file and library references: # CPP_NETCDF=/usr/local/netcdf/include # LD_NETCDF='-L/usr/local/netcdf/lib -lnetcdf' # # udunits header file and library references: # CPP_UDUNITS=-I/usr/local/udunits/include # LD_UDUNITS='-L/usr/local/udunits/lib -ludunits' # # On Linux and BSD systems: # # Type of C compiler: # CC=/usr/bin/gcc # # Installation prefix: # prefix=/usr/local/unidata # # Here's a url with additional compiling information: # http://www.unidata.ucar.edu/projects/coohl/mhonarc/MailArchives/decoders/msg00599.html CPP_NETCDF='-I/usr/local/include' LD_NETCDF='-L/usr/local/lib -lnetcdf' CPP_UDUNITS='-I/usr/local/include' LD_UDUNITS='-L/usr/local/lib -ludunits -ludport' --------------DD7F721B61B3F1D08147368D Content-Type: text/plain; charset=us-ascii; name="gcc.version" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="gcc.version" Reading specs from /usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/specs Configured with: /GCC/gcc-3.3.1-3/configure --with-gcc --with-gnu-ld --with-gnu-as --prefix=/usr --exec-prefix=/usr --sysconfdir=/etc --libdir=/usr/lib --libexecdir=/usr/sbin --mandir=/usr/share/man --infodir=/usr/share/info --enable-languages=c,ada,c++,f77,pascal,java,objc --enable-libgcj --enable-threads=posix --with-system-zlib --enable-nls --without-included-gettext --enable-interpreter --enable-sjlj-exceptions --disable-version-specific-runtime-libs --enable-shared --disable-win32-registry --enable-java-gc=boehm --disable-hash-synchronization --verbose --target=i686-pc-cygwin --host=i686-pc-cygwin --build=i686-pc-cygwin Thread model: posix gcc version 3.3.1 (cygming special) --------------DD7F721B61B3F1D08147368D Content-Type: text/plain; charset=us-ascii; name="configure.log" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="configure.log" creating cache ./config.cache checking for catman... no checking for makewhatis... no checking for /usr/lib/makewhatis... no checking for manual-page index command... checking the installation prefix... /usr/local/src/decoders-3.0.2 checking the installation exec-prefix... /usr/local/src/decoders-3.0.2 checking for c89... no checking for cc... cc checking how to run the C preprocessor... cc -E checking the C preprocessor... works checking for ranlib... ranlib checking type of operating system... cygwin_nt-5.1 checking for dependency generation mechanism... cc -M checking for tbl... tbl checking for neqn... neqn checking for tar flags... -chof checking for package version... 3.0 checking for netCDF header-file... -I/usr/local/include checking for netCDF library... -L/usr/local/lib -lnetcdf checking for udunits header-file... -I/usr/local/include checking for udunits library... -L/usr/local/lib -ludunits -ludport -ludport checking for BSD sockets library... checking for socket(0,0,0) in default library(s)... yes checking for RPC library... checking for clnttcp_create() in default library(s)... no checking for clnttcp_create() in -lsun... checking for clnttcp_create() in -lnsl... checking for clnttcp_create() in -lrpc... yes checking for BSD sockets library... checking ulog defines... updating cache ./config.cache creating ./config.status creating Makefile creating gribtonc/Makefile creating gribtonc/cdl/Makefile creating ascii/Makefile creating metar/Makefile creating syn/Makefile creating buoy/Makefile creating upperair/Makefile creating ldmConnect/Makefile creating port/master.mk creating port/Makefile expanding `include's in file `Makefile' expanding `include's in file `gribtonc/Makefile' expanding `include's in file `gribtonc/cdl/Makefile' expanding `include's in file `ascii/Makefile' expanding `include's in file `metar/Makefile' expanding `include's in file `syn/Makefile' expanding `include's in file `buoy/Makefile' expanding `include's in file `upperair/Makefile' expanding `include's in file `ldmConnect/Makefile' expanding `include's in file `port/master.mk' expanding `include's in file `port/Makefile' rm: cannot unlink `conftest': No such file or directory --------------DD7F721B61B3F1D08147368D Content-Type: text/plain; charset=us-ascii; name="make.log" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="make.log" making `all' in directory /usr/local/src/decoders-3.0.2/src/gribtonc make[1]: Entering directory `/usr/local/src/decoders-3.0.2/src/gribtonc' cc -c -g -I/usr/local/include -I/usr/local/include emalloc.c cc -c -g -I/usr/local/include -I/usr/local/include gbds.c cc -c -g -I/usr/local/include -I/usr/local/include gbytem.c cc -c -g -I/usr/local/include -I/usr/local/include gdes.c cc -c -g -I/usr/local/include -I/usr/local/include get_prod.c cc -c -g -I/usr/local/include -I/usr/local/include grib1.c cc -c -g -I/usr/local/include -I/usr/local/include gribtypes.c cc -c -g -I/usr/local/include -I/usr/local/include inetutil.c inetutil.c: In function `hostbyaddr': inetutil.c:160: warning: assignment discards qualifiers from pointer target type inetutil.c: In function `hostent_new': inetutil.c:423: warning: passing arg 1 of `strcpy' discards qualifiers from pointer target type cc -c -g -I/usr/local/include -I/usr/local/include levels.c cc -c -g -I/usr/local/include -I/usr/local/include params.c cc -c -g -I/usr/local/include -I/usr/local/include product_data.c cc -c -g -I/usr/local/include -I/usr/local/include quasi.c cc -c -g -I/usr/local/include -I/usr/local/include timeunits.c cc -c -g -I/usr/local/include -I/usr/local/include user_param.c cc -c -g -I/usr/local/include -I/usr/local/include ulog.c cc -c -g -I/usr/local/include -I/usr/local/include centers.c cc -c -g -I/usr/local/include -I/usr/local/include gribdump.c cc -c -g -I/usr/local/include -I/usr/local/include models.c cc -g emalloc.o gbds.o gbytem.o gdes.o get_prod.o grib1.o gribtypes.o inetutil.o levels.o params.o product_data.o quasi.o timeunits.o user_param.o ulog.o centers.o gribdump.o models.o -lrpc -lm -o gribdump Info: resolving _h_errno by linking to __imp__h_errno (auto-import) Info: resolving _opterr by linking to __imp__opterr (auto-import) Info: resolving _optarg by linking to __imp__optarg (auto-import) Info: resolving _optind by linking to __imp__optind (auto-import) cc -c -g -I/usr/local/include -I/usr/local/include gribtonc.c cc -c -g -I/usr/local/include -I/usr/local/include mkdirs_open.c cc -c -g -I/usr/local/include -I/usr/local/include nc.c cc -c -g -I/usr/local/include -I/usr/local/include ncfloat.c cc -c -g -I/usr/local/include -I/usr/local/include nuwg.c cc -c -g -I/usr/local/include -I/usr/local/include recs.c cc -c -g -I/usr/local/include -I/usr/local/include units.c cc -g emalloc.o gbds.o gbytem.o gdes.o get_prod.o grib1.o gribtypes.o inetutil.o levels.o params.o product_data.o quasi.o timeunits.o user_param.o ulog.o gribtonc.o mkdirs_open.o nc.o ncfloat.o nuwg.o recs.o units.o \ -L/usr/local/lib -lnetcdf -lrpc -L/usr/local/lib -ludunits -ludport -ludport -lm -o gribtonc nc.o(.text+0x655): In function `cdl_netcdf': /usr/local/src/decoders-3.0.2/src/gribtonc/nc.c:280: undefined reference to `_ncopts' nc.o(.text+0x1b97): In function `parmname': /usr/local/src/decoders-3.0.2/src/gribtonc/nc.c:783: undefined reference to `_ncopts' nc.o(.text+0x1c89):/usr/local/src/decoders-3.0.2/src/gribtonc/nc.c:810: undefined reference to `_ncopts' nc.o(.text+0x1cd1):/usr/local/src/decoders-3.0.2/src/gribtonc/nc.c:816: undefined reference to `_ncopts' ncfloat.o(.text+0x11e8): In function `float_nc': /usr/local/src/decoders-3.0.2/src/gribtonc/ncfloat.c:370: undefined reference to `_ncerr' Info: resolving _h_errno by linking to __imp__h_errno (auto-import) Info: resolving _opterr by linking to __imp__opterr (auto-import) Info: resolving _optarg by linking to __imp__optarg (auto-import) Info: resolving _optind by linking to __imp__optind (auto-import) collect2: ld returned 1 exit status make[1]: *** [gribtonc] Error 1 make[1]: Leaving directory `/usr/local/src/decoders-3.0.2/src/gribtonc' make: *** [gribtonc/all] Error 1 --------------DD7F721B61B3F1D08147368D-- -- NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publically available through the web. 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============================================================================== Robb Kambic Unidata Program Center Software Engineer III Univ. Corp for Atmospheric Research rkambic@xxxxxxxxxxxxxxxx WWW: http://www.unidata.ucar.edu/ ==============================================================================
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