[netcdfgroup] Error when building netcdf-fortran with static libraries

• To: netcdfgroup@xxxxxxxxxxxxxxxx
• Subject: [netcdfgroup] Error when building netcdf-fortran with static libraries
• From: Malcolm Maas <malcolmmaas@xxxxxxxxx>
• Date: Sun, 24 May 2020 16:49:08 -0400

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*

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  • Re: [netcdfgroup] Error when building netcdf-fortran with static libraries
    • From: Malcolm Maas