> Please find the config.log attached. > > Thank you very much! > Yanshi. OK, here are the relevant lines from config.log: configure:17833: gfortran -g -O2 -c conftestf.f configure:17836: $? = 0 configure:17839: gfortran -o conftest -g -O2 conftestf.o conftest.o ld: warning: ignoring file conftest.o, file was built for unsupported file format ( 0xcf 0xfa 0xed 0xfe 0x 7 0x 0 0x 0 0x 1 0x 3 0x 0 0x 0 0x 0 0x 1 0x 0 0x 0 0x 0 ) which is not the architecture being linked (i386): conftest.o Undefined symbols for architecture i386: "_sub_", referenced from: _MAIN__ in conftestf.o ld: symbol(s) not found for architecture i386 Your gfortran is compiling for i386, a 32-bit architecture, but your gcc is apparently compiling for a different architecture, probably 64-bit x86_64. You have to use the same architecture if you want to link the software together. You could do this by either using the right flags for gcc, for example -m32 or maybe -arch i386, or use a flag for gfortran, maybe -m64 or -arch x86_64. If you installed netcdf-fortran from MacPorts, you may have a gfortran that produces 64-bit objects with a long name something like /opt/local/bin/x86_64-apple-darwin-gfortran-mp-4.7 but it might be easier to just use the gfortran you have and make gcc produce 32-bit objects. --Russ > On Mar 25, 2013, at 4:57 PM, Unidata netCDF Support <address@hidden> > wrote: > > >> Hi Russ, > >> > >> I don't have problem installing C library with --disable-netcdf-4. And I > >> followed instructions at > >> http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-fortran-install.html > >> > >> But still I get error for './configure --prefix=/usr/local' as below: > >> checking what FC is set to... gfortran > >> checking for special C compiler options needed for large files... no > >> checking for _FILE_OFFSET_BITS value needed for large files... no > >> configure: displaying some results > >> checking for /Applications/Xcode.app/Contents/Developer/usr/bin/nm... > >> /Applications/Xcode.app/Contents/Developer/usr/bin/nm > >> checking nm flags... > >> checking for C-equivalent to Fortran routine "SUB"... sub_ > >> checking for Fortran "byte"... yes > >> checking for Fortran "integer*2"... yes > >> checking if Fortran "byte" is C "signed char"... configure: error: Could > >> not link conftestf.o and conftest.o > >> > >> Any idea how to fix this? > >> Thank you! > >> Yanshi. > > > > There's not enough information to tell just looking at the error > > message above. The error message means a simple Fortran program > > compiled to conftestf.o can't be linked to a simple C program > > compiled into conftest.o, so that the Fortran program can call a > > function defined in the C program. > > > > If you look at config.log towards the end of the file, the Fortran > > and C programs being compiled are shown, when the error occurs. > > The extra error information in config.log may be helpful in > > diagnosing the problem. > > > > What I see in config.log, using compatible versions of gcc and > > gfortran, is ouput like this, indicating successful linking: > > > > configure:19027: checking if Fortran "byte" is C "signed char" > > configure:19037: gcc -c -I/usr/local/include -g -O2 conftest.c > > conftest.c: In function 'sub_': > > conftest.c:4:3: warning: incompatible implicit declaration of built-in > > function 'exit' > > configure:19040: $? = 0 > > configure:19043: gfortran -g -O0 -fno-inline -c conftestf.f > > configure:19046: $? = 0 > > configure:19049: gfortran -o conftest -g -O0 -fno-inline conftestf.o > > conftest.o > > configure:19052: $? = 0 > > configure:19055: ./conftest > > configure:19058: $? = 0 > > configure:19060: result: yes > > ... > > > > If you can't figure it out from looking at config.log, send the whole > > config.log > > file to us and we'll see if we can help, but it may take several days ... > > > > --Russ > > > >> On Mar 24, 2013, at 4:22 PM, Unidata netCDF Support > >> <address@hidden<mailto:address@hidden>> > >> wrote: > >> > >> Hi Yanshi, > >> > >> I am trying to install netCDF on my MACOS X 10.8.6. > >> I have installed the netCDF-220.127.116.11 without error by > >> > >> ./configure --disable-netcdf-4 > >> make > >> make check > >> make install > >> > >> However, I could not find the the netcdf.mod and typesizes.mod under > >> /usr/local/ > >> > >> The netCDF-18.104.22.168 package only installs the C library. To install the > >> Fortran netCDF libaries, > >> which have been in a separate distribution since C version 4.1.3, you need > >> to download the > >> Fortran distribution (either the stable release or the beta test) from > >> here: > >> > >> http://www.unidata.ucar.edu/downloads/netcdf/netcdf-fortran/ > >> > >> and follow these instructions: > >> > >> http://www.unidata.ucar.edu/software/netcdf/docs/netcdf-fortran-install.html > >> > >> Alternatively, you could use the MacPorts system (see > >> www.macports.org<http://www.macports.org>) and have the full netCDF-4 > >> library installed, including netCDF-Fortran, using > >> > >> sudo port install netcdf-fortran > >> > >> Note, that may take a while, as it may also download and install > >> compatible versions of gcc and > >> gfortran ... > >> > >> --Russ > >> > >> So, I continued to install netCDF-fortran-4.2, and ./configure returns > >> â... > >> checking for Fortran "byte"... yes > >> checking for Fortran "integer*2"... yes > >> checking if Fortran "byte" is C "signed char"... configure: error: Could > >> not link conftestf.o and conftest.o > >> > >> Any idea how to fix this? > >> Thank you so much! > >> Yanshi. > >> > >> > >> Russ Rew UCAR Unidata Program > >> address@hidden<mailto:address@hidden> > >> http://www.unidata.ucar.edu > >> > >> > >> > >> Ticket Details > >> =================== > >> Ticket ID: FVK-122895 > >> Department: Support netCDF > >> Priority: Normal > >> Status: Closed > >> > >> > >> > >> > >> > > Russ Rew UCAR Unidata Program > > address@hidden http://www.unidata.ucar.edu > > > > > > > > Ticket Details > > =================== > > Ticket ID: FVK-122895 > > Department: Support netCDF > > Priority: Normal > > Status: Closed > > > > > > Russ Rew UCAR Unidata Program address@hidden http://www.unidata.ucar.edu Ticket Details =================== Ticket ID: FVK-122895 Department: Support netCDF Priority: Normal Status: Closed
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