Dear Maintainer,

Now flexpart has one FTBFS issue on riscv64 like:

```
...
gfortran `LC_ALL=C ls *.o` -o flexpart.gfs -Wl,-z,relro -O2 -I/usr/lib/riscv64-linux-gnu/fortran/gfortran-mod-16 -L/usr/lib/riscv64-linux-gnu/fortran/gnu -O2 -fdefault-real-8 -fconvert=little-endian -frecord-marker=4 -I/usr/include -L/usr/lib -Wl,--as-needed  -leccodes_f90 -leccodes -lm
convmix_gfs.o: in function `convmix_':
convmix_gfs.f90:(.text+0xdc): relocation truncated to fit: R_RISCV_PCREL_HI20 against `igrid.1'
getfields.o: in function `getfields_':
getfields.f90:(.text+0x1f4): relocation truncated to fit: R_RISCV_PCREL_HI20 against `wwh.1'
gridcheck_gfs.o: in function `gridcheck_':
gridcheck_gfs.f90:(.text+0x5e6): relocation truncated to fit: R_RISCV_PCREL_HI20 against `zsec4.0'
gridcheck_nests.o: in function `gridcheck_nests_':
gridcheck_nests.f90:(.text+0x450): relocation truncated to fit: R_RISCV_PCREL_HI20 against `zsec4.0'
init_domainfill.o: in function `init_domainfill_':
init_domainfill.f90:(.text+0x356): relocation truncated to fit: R_RISCV_PCREL_HI20 against `colmass.1'
partoutput_short.o: in function `partoutput_short_':
partoutput_short.f90:(.text+0x2ac): relocation truncated to fit: R_RISCV_PCREL_HI20 against `idump.1'
plumetraj.o: in function `plumetraj_':
plumetraj.f90:(.text+0x210): relocation truncated to fit: R_RISCV_PCREL_HI20 against `yl.1'
random.o: in function `ran3_':
random.f90:(.text+0x2): relocation truncated to fit: R_RISCV_PCREL_HI20 against `.LANCHOR0'
readavailable.o: in function `readavailable_':
readavailable.f90:(.text+0x208): relocation truncated to fit: R_RISCV_PCREL_HI20 against `wfname1.2'
readlanduse.o: in function `readlanduse_':
readlanduse.f90:(.text+0xe0): relocation truncated to fit: R_RISCV_PCREL_HI20 against `ilr_buffer.0'
readwind_gfs.o: in function `readwind_':

```

I follow the tip of other architectures then the package can
be built on riscv64.

Could we have a try on it? Please let me know any issue.

We believe that the bug you reported is fixed in the latest version of
flexpart, which is due to be installed in the Debian FTP archive.

A summary of the changes between this version and the previous one is
attached.

Thank you for reporting the bug, which will now be closed.  If you
have further comments please address them to 1120039@bugs.debian.org,
and the maintainer will reopen the bug report if appropriate.

Debian distribution maintenance software
pp.
Alastair McKinstry <mckinstry@debian.org> (supplier of updated flexpart package)

(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing ftpmaster@ftp-master.debian.org)
Format: 1.8
Date: Fri, 29 May 2026 12:24:01 +0100
Source: flexpart
Architecture: source
Version: 9.02-28
Distribution: unstable
Urgency: medium
Maintainer: Alastair McKinstry <mckinstry@debian.org>
Changed-By: Alastair McKinstry <mckinstry@debian.org>
Closes: 1120039
Changes:
 flexpart (9.02-28) unstable; urgency=medium
 .
   * Depend on dh-fortran
   * Standards-Version: 4.7.4
   * Apply fix for riscv64, thanks Bo Yu. Closes: #1120039
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