Error Reported When Packaging rpmbuild -ba ncl.spec

Symptom

If the following error information is displayed when packaging rpmbuild -ba ncl.spec:

/path/to/gdal/gdal-2.2.4/frmts/fits/fitsdataset.cpp:541: undefined reference to `ffinit'
/usr/bin/ld: /path/to/gdal/gdal-2.2.4/frmts/fits/fitsdataset.cpp:564: undefined reference to `ffclos'
/usr/bin/ld: /path/to/gdal/gdal-2.2.4/frmts/fits/fitsdataset.cpp:571: undefined reference to `ffcrim'
/usr/bin/ld: /path/to/gdal/gdal-2.2.4/frmts/fits/fitsdataset.cpp:578: undefined reference to `ffclos'
clang-10: error: linker command failed with exit code 1 (use -v to see invocation)

Key Process and Cause Analysis

The compilation fails for multiple times.

Conclusion and Solution

1. Go to the /root/rpmbuild/BUILD/ncl_ncarg-6.3.0/ni/src/ncl directory.

   cd /root/rpmbuild/BUILD/ncl_ncarg-6.3.0/ni/src/ncl

2. Run the following command:

   make clean

3. Go to the /root/rpmbuild/SPECS directory.

   cd /root/rpmbuild/SPECS

4. Package the file.

   rpmbuild -ba ncl.spec