[gembud] Problem compiling GEMPAK 7.20 on RHEL 9.10

  • To: "Mullenax, Robert (PERATON) via gembud" <gembud@xxxxxxxxxxxxxxxx>
  • Subject: [gembud] Problem compiling GEMPAK 7.20 on RHEL 9.10
  • From: "Mullenax, Robert R. (WFF-820.0)[PERATON INC]" <robert.r.mullenax@xxxxxxxx>
  • Date: Tue, 3 Mar 2026 20:09:58 +0000
Good afternoon,

I am having an issue compiling GEMPAK 7.20 on RHEL 9.10. The build completed 
and I did an install, but when I open NTL I found that NMAP2 and NSHARP did not 
build, along with other programs. Here is the error I am seeing. This is seen 
several times in the make.out Anyone have any ideas?

/usr/bin/ld: /home/gempak/GEMPAK/os/linux64/lib/gemlib.a(dgdriv.o): in function 
`dg_driv':
/home/gempak/GEMPAK/gempak/source/diaglib/dg/dgdriv.c:367: undefined reference 
to `df_mfrq'
collect2: error: ld returned 1 exit status
make[5]: *** [Makefile:185: nmap2] Error 1

Thanks very much.
Robert Mullenax

Robert Mullenax
Meteorologist
Columbia Scientific Balloon Facility
Peraton
1510 E. FM 3224
Palestine, TX 75803
903-723-8037
robert.r.mullenax@xxxxxxxx