Undefined references when linking CLM3.5 object files

[eckhardt@uni-hohenheim_de]

Hi,

I succeed in compiling the CLM3.5 source code with the fortran compiler gfortran. However, the linking does not work and produces the following output in MAKE.out:

...
gfortran -o /home/klaueckh/clm3.5/Hohenheim/bld/clm BalanceCheckMod.o ...[I skip some text here]... wrf_message.o -L/usr/local/lib -lnetcdf
controlMod.o: In function `__controlmod__control_spmd':
controlMod.F90:(.text+0x954): undefined reference to __histfilemod__hist_fexcl1'
controlMod.F90:(.text+0x97f): undefined reference to `__histfilemod__hist_fexcl2'
controlMod.F90:(.text+0x9aa): undefined reference to `__histfilemod__hist_fexcl3'
controlMod.F90:(.text+0x9d5): undefined reference to `__histfilemod__hist_fexcl4'
controlMod.F90:(.text+0xa00): undefined reference to `__histfilemod__hist_fexcl5'
controlMod.F90:(.text+0xa2b): undefined reference to `__histfilemod__hist_fexcl6'
controlMod.F90:(.text+0xa54): undefined reference to `__histfilemod__hist_fincl1'
controlMod.F90:(.text+0xa81): undefined reference to `__histfilemod__hist_fincl2'
controlMod.F90:(.text+0xaaa): undefined reference to `__histfilemod__hist_fincl3'
controlMod.F90:(.text+0xad5): undefined reference to `__histfilemod__hist_fincl4'
controlMod.F90:(.text+0xb00): undefined reference to `__histfilemod__hist_fincl5'
controlMod.F90:(.text+0xb2b): undefined reference to `__histfilemod__hist_fincl6'
controlMod.o: In function `__controlmod__control_init':
controlMod.F90:(.text+0x17e0): undefined reference to `__histfilemod__hist_fincl1'
controlMod.F90:(.text+0x181d): undefined reference to `__histfilemod__hist_fincl2'
controlMod.F90:(.text+0x185a): undefined reference to `__histfilemod__hist_fincl3'
controlMod.F90:(.text+0x1897): undefined reference to `__histfilemod__hist_fincl4'
controlMod.F90:(.text+0x18d4): undefined reference to `__histfilemod__hist_fincl5'
controlMod.F90:(.text+0x1911): undefined reference to `__histfilemod__hist_fincl6'
controlMod.F90:(.text+0x194e): undefined reference to `__histfilemod__hist_fexcl1'
controlMod.F90:(.text+0x198b): undefined reference to `__histfilemod__hist_fexcl2'
controlMod.F90:(.text+0x19c8): undefined reference to `__histfilemod__hist_fexcl3'
controlMod.F90:(.text+0x1a05): undefined reference to `__histfilemod__hist_fexcl4'
controlMod.F90:(.text+0x1a42): undefined reference to `__histfilemod__hist_fexcl5'
controlMod.F90:(.text+0x1a7f): undefined reference to `__histfilemod__hist_fexcl6'
m_FileResolv.o: In function `__m_fileresolv__fileresolv':
m_FileResolv.F90:(.text+0xb5f): undefined reference to `system_'
m_FileResolv.F90:(.text+0xee1): undefined reference to `system_'
shr_sys_mod.o: In function `__shr_sys_mod__shr_sys_system':
shr_sys_mod.F90:(.text+0x9): undefined reference to `system_'
shr_sys_mod.o: In function `__shr_sys_mod__shr_sys_chdir':
shr_sys_mod.F90:(.text+0x4b): undefined reference to `chdir_'
collect2: ld returned 1 exit status

I should perhaps add that I have defined

FFLAGS=-ff2c -fno-second-underscore
FCFLAGS=-ff2c -fno-second-underscore

before compiling NETCDF, and that I have set

FFLAGS := $(cpp_path) $(mod_path) $(CPPDEF) -extend_source -ff2c -fno-second-underscore

in clm3.5/bld/Makefile.in. It is not clear to me why I nevertheless see names with two underscores here. But perhaps this is not the problem at all. What else could it be?

Thank you very much for your help!

KlausE

 

[eckhardt@uni-hohenheim_de]

Hi,

by and large, I could solve the problem. The error messages

controlMod.o: In function `__controlmod__control_spmd':
controlMod.F90:(.text+0x954): undefined reference to __histfilemod__hist_fexcl1'
...
controlMod.F90:(.text+0x1a7f): undefined reference to `__histfilemod__hist_fexcl6'

seem to be caused by the "equivalence" statement in src/main/histFileMod.F90.

The messages

m_FileResolv.o: In function `__m_fileresolv__fileresolv':
m_FileResolv.F90:(.text+0xb5f): undefined reference to `system_'
m_FileResolv.F90:(.text+0xee1): undefined reference to `system_'
shr_sys_mod.o: In function `__shr_sys_mod__shr_sys_system':
shr_sys_mod.F90:(.text+0x9): undefined reference to `system_'
shr_sys_mod.o: In function `__shr_sys_mod__shr_sys_chdir':
shr_sys_mod.F90:(.text+0x4b): undefined reference to `chdir_'
collect2: ld returned 1 exit status

disappeared when I commented out the declaration of "system" and "chdir" in
src/utils/mct/mpeu/m_FileResolv.F90 and src/csm_share/shr/shr_sys_mod.F90.

KlausE