It fails with the same error when configuring using the instructions for
shared libraries. This thread seems to be relevant but I don't think it has
a concrete answer:
https://www.unidata.ucar.edu/support/help/MailArchives/netcdf/msg11207.html
On Sun, May 24, 2020 at 4:49 PM Malcolm Maas <malcolmmaas@xxxxxxxxx> wrote:
> Hello,
>
> I'm building netcdf-fortran-4.5.2 on Windows 10, using MinGW. I've
> installed netCDF-4.7.4 as a binary and am using these instructions to build
> netcdf-fortran:
> https://www.unidata.ucar.edu/software/netcdf/docs/building_netcdf_fortran.html#building_fortran_with_static_libraries
>
> This is what I ran in an attempt to build it:
> CPPFLAGS="-IE:/Users/Malcolm/netCDF-4.7.4/include
> -IE:/Users/Malcolm/hdf5/include
> -IE:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/include"
> LDFLAGS="-LE:/Users/Malcolm/netCDF-4.7.4/lib -LE:/Users/Malcolm/hdf5/lib
> -LE:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/lib"
> LD_LIBRARY_PATH=E:/Users/Malcolm/netCDF-4.
> 7.4/lib:E:/Users/Malcolm/hdf5/lib:E:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/lib
> LIBS="-lnetcdf -lhdf5_hl -lhdf5 -lz -lcurl" ./configure
> --prefix=E:/Users/Malcolm/netcdf-4.7.4/lib --disable-shared
>
> It did a bunch of checks, and at the end was:
> checking for library containing nc_open... no
> configure: error: Could not link to netcdf C library. Please set LDFLAGS.
>
> I'm not sure what I should do, because I set LDFLAGS in the command. Here
> is the full error from config.log:
> configure:22764: checking for library containing nc_open
> configure:22795: gcc -o conftest.exe -g -O2
> -IE:/Users/Malcolm/netCDF-4.7.4/include -IE:/Users/Malcolm/hdf5/include
> -IE:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/include
> -LE:/Users/Malcolm/netCDF-4.7.4/lib -LE:/Users/Malcolm/hdf5/lib
> -LE:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/lib conftest.c -lm -lnetcdf
> -lhdf5_hl -lhdf5 -lz -lcurl >&5
> C:\Users\Malcolm\AppData\Local\Temp\cckVY3CJ.o: In function `main':
> e:\Users\Malcolm\netcdf-fortran-4.5.2/conftest.c:52: undefined reference
> to `nc_open'
> collect2.exe: error: ld returned 1 exit status
> configure:22795: $? = 1
> configure: failed program was:
> | /* confdefs.h */
> | #define PACKAGE_NAME "netCDF-Fortran"
> | #define PACKAGE_TARNAME "netcdf-fortran"
> | #define PACKAGE_VERSION "4.5.2"
> | #define PACKAGE_STRING "netCDF-Fortran 4.5.2"
> | #define PACKAGE_BUGREPORT "support-netcdf@xxxxxxxxxxxxxxxx"
> | #define PACKAGE_URL ""
> | #define PACKAGE "netcdf-fortran"
> | #define VERSION "4.5.2"
> | #define NF_RELAX_COORD_BOUND 1
> | #define ENABLE_CDF5 1
> | #define HAVE_F2008 1
> | #define HAVE_TS29113_SUPPORT 1
> | #define TEMP_LARGE "."
> | #define STDC_HEADERS 1
> | #define HAVE_SYS_TYPES_H 1
> | #define HAVE_SYS_STAT_H 1
> | #define HAVE_STDLIB_H 1
> | #define HAVE_STRING_H 1
> | #define HAVE_MEMORY_H 1
> | #define HAVE_STRINGS_H 1
> | #define HAVE_INTTYPES_H 1
> | #define HAVE_STDINT_H 1
> | #define HAVE_UNISTD_H 1
> | #define HAVE_DLFCN_H 1
> | #define LT_OBJDIR ".libs/"
> | #define NF_INT1_T byte
> | #define NF_INT2_T integer*2
> | #define NF_INT8_T integer*8
> | #define NF_INT1_IS_C_SIGNED_CHAR 1
> | #define NF_INT2_IS_C_SHORT 1
> | #define NF_INT8_IS_C_LONG_LONG 1
> | #define NF_INT_IS_C_INT 1
> | #define NF_REAL_IS_C_FLOAT 1
> | #define NF_DOUBLEPRECISION_IS_C_DOUBLE 1
> | #define NCBYTE_T byte
> | #define NCSHORT_T integer*2
> | #define HAVE_LIBM 1
> | #define HAVE_NETCDF_H 1
> | /* end confdefs.h. */
> |
> | /* Override any GCC internal prototype to avoid an error.
> | Use char because int might match the return type of a GCC
> | builtin and then its argument prototype would still apply. */
> | #ifdef __cplusplus
> | extern "C"
> | #endif
> | char nc_open ();
> | int
> | main ()
> | {
> | return nc_open ();
> | ;
> | return 0;
> | }
> configure:22795: gcc -o conftest.exe -g -O2
> -IE:/Users/Malcolm/netCDF-4.7.4/include -IE:/Users/Malcolm/hdf5/include
> -IE:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/include
> -LE:/Users/Malcolm/netCDF-4.7.4/lib -LE:/Users/Malcolm/hdf5/lib
> -LE:/Users/Malcolm/zlib-curl/curl-7.70.0-win64/lib conftest.c -lnetcdf -lm
> -lnetcdf -lhdf5_hl -lhdf5 -lz -lcurl >&5
> C:\Users\Malcolm\AppData\Local\Temp\ccqgO2UL.o: In function `main':
> e:\Users\Malcolm\netcdf-fortran-4.5.2/conftest.c:52: undefined reference
> to `nc_open'
> collect2.exe: error: ld returned 1 exit status
> configure:22795: $? = 1
> configure: failed program was:
> | /* confdefs.h */
> | #define PACKAGE_NAME "netCDF-Fortran"
> | #define PACKAGE_TARNAME "netcdf-fortran"
> | #define PACKAGE_VERSION "4.5.2"
> | #define PACKAGE_STRING "netCDF-Fortran 4.5.2"
> | #define PACKAGE_BUGREPORT "support-netcdf@xxxxxxxxxxxxxxxx"
> | #define PACKAGE_URL ""
> | #define PACKAGE "netcdf-fortran"
> | #define VERSION "4.5.2"
> | #define NF_RELAX_COORD_BOUND 1
> | #define ENABLE_CDF5 1
> | #define HAVE_F2008 1
> | #define HAVE_TS29113_SUPPORT 1
> | #define TEMP_LARGE "."
> | #define STDC_HEADERS 1
> | #define HAVE_SYS_TYPES_H 1
> | #define HAVE_SYS_STAT_H 1
> | #define HAVE_STDLIB_H 1
> | #define HAVE_STRING_H 1
> | #define HAVE_MEMORY_H 1
> | #define HAVE_STRINGS_H 1
> | #define HAVE_INTTYPES_H 1
> | #define HAVE_STDINT_H 1
> | #define HAVE_UNISTD_H 1
> | #define HAVE_DLFCN_H 1
> | #define LT_OBJDIR ".libs/"
> | #define NF_INT1_T byte
> | #define NF_INT2_T integer*2
> | #define NF_INT8_T integer*8
> | #define NF_INT1_IS_C_SIGNED_CHAR 1
> | #define NF_INT2_IS_C_SHORT 1
> | #define NF_INT8_IS_C_LONG_LONG 1
> | #define NF_INT_IS_C_INT 1
> | #define NF_REAL_IS_C_FLOAT 1
> | #define NF_DOUBLEPRECISION_IS_C_DOUBLE 1
> | #define NCBYTE_T byte
> | #define NCSHORT_T integer*2
> | #define HAVE_LIBM 1
> | #define HAVE_NETCDF_H 1
> | /* end confdefs.h. */
> |
> | /* Override any GCC internal prototype to avoid an error.
> | Use char because int might match the return type of a GCC
> | builtin and then its argument prototype would still apply. */
> | #ifdef __cplusplus
> | extern "C"
> | #endif
> | char nc_open ();
> | int
> | main ()
> | {
> | return nc_open ();
> | ;
> | return 0;
> | }
> configure:22812: result: no
> configure:22819: error: Could not link to netcdf C library. Please set
> LDFLAGS.
>
> This is my first time compiling something, and I've mostly been learning
> as I go. There's a good chance I'm missing something basic here.
>
> --
> *Malcolm*
>
--
*Malcolm*
