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From: user1 on 30 Sep 2008 23:29
Jinsong.Zhao(a)gmail.com wrote:
> Now, I could get all objects correctly, using gfortran -c ...
>
> Firstly, I compile src_modules, and copy *.mod to src_interfaces,
> and then compile src_interfaces. copy *.mod in both directory
> to src_subroutines directory, and compile using -c option to get
> objects.
>
> Then move all .o to src_subroutines, and invoke the following
> command:
>
> gfortran -o Mopac *.o
>
> I get the following error message:
>
> undefined reference to `__funcon_c__fpc_9'
> ...
>
> I cannot figure out what's wrong.
>
> Any suggestions, thanks!
>
> Regards,
> Jinsong

cd src_modules
gfortran -c vastkind.f90
gfortran -c *.f90
copy *.mod ..\Modules
ar -r libmodules.a *.o
del *.o
del *.mod

cd ..\src_interfaces
gfortran -I..\Modules -c *.f90
copy *.mod ..\Modules
ar -r libinterfaces.a *.o
del *.o
del *.mod

cd ..\src_subroutines
gfortran -I..\Modules -c *.f90

gfortran *.o ..\src_modules\libmodules.a ..\src_interfaces\libinterfaces.a
-o mopac7.exe

From: tsun-1982 on 1 Oct 2008 01:40
I invoke the following
command:


gfortran *.o ..\src_modules\libmodules.a ..\src_interfaces
\libinterfaces.a
-o mopac7.exe


I get the following error message:


getdat.o:getdat.F90:(.text+0xa): undefined reference to `iargc_'
getdat.o:getdat.F90:(.text+0x65): undefined reference to `getarg_'
collect2: ld returned 1 exit status
I cannot figure out what's wrong.


Any suggestions, thanks!
From: Jinsong.Zhao on 1 Oct 2008 01:49
On Oct 1, 11:29 am, user1 <u...(a)example.net> wrote:

> cd src_modules
> gfortran -c vastkind.f90
> gfortran -c *.f90
> copy *.mod ..\Modules
> ar -r libmodules.a *.o
> del *.o
> del *.mod
>
> cd ..\src_interfaces
> gfortran -I..\Modules -c *.f90
> copy *.mod ..\Modules
> ar -r libinterfaces.a *.o
> del *.o
> del *.mod
>
> cd ..\src_subroutines
> gfortran -I..\Modules -c *.f90
>
> gfortran *.o ..\src_modules\libmodules.a ..\src_interfaces\libinterfaces.a
> -o mopac7.exe

Thank you very much, except the last step, it works well.

The last step also give error message like

analyt.o: In function `analyt_':
analyt.F90:(.text+0x2ba): undefined reference to `__funcon_c__a0'
analyt.F90:(.text+0x2c8): undefined reference to `__funcon_c__a0'
analyt.F90:(.text+0x2ce): undefined reference to `__funcon_c__a0'
analyt.F90:(.text+0x1875): undefined reference to `__funcon_c__fpc_9'
analyt.o: In function `delri_':
analyt.F90:(.text+0x3988): undefined reference to `__funcon_c(...)
(void)'
analyt.F90:(.text+0x3995): undefined reference to `__funcon_c__a0'
analyt.F90:(.text+0x399d): undefined reference to `__funcon_c__a0'

If I change the following line in analyt.F90:
USE funcon_C, only : a0, fpc_9, ev
to
USE funcon_C

Then the error message disappear, however, I don't know whether
it would give error result.

Thanks again.
Jinsong
From: Richard Maine on 1 Oct 2008 01:51
<tsun-1982(a)163.com> wrote:

> getdat.o:getdat.F90:(.text+0xa): undefined reference to `iargc_'
> getdat.o:getdat.F90:(.text+0x65): undefined reference to `getarg_'
....
> I cannot figure out what's wrong.

iargc and getarg are not standard Fortran. I thought gFortran had an
option to support them, but I don't recall how to invoke it and I could
be wrong about its existence.

--
Richard Maine | Good judgement comes from experience;
email: last name at domain . net | experience comes from bad judgement.
domain: summertriangle | -- Mark Twain
From: Tobias Burnus on 1 Oct 2008 01:56
On 1 Okt., 07:40, tsun-1...(a)163.com wrote:
> I get the following error message:
>
> getdat.o:getdat.F90:(.text+0xa): undefined reference to `iargc_'
> getdat.o:getdat.F90:(.text+0x65): undefined reference to `getarg_'
> collect2: ld returned 1 exit status
> I cannot figure out what's wrong.
>
> Any suggestions, thanks!

I think you will find in the source code somewhere

EXTERNAL iargc
EXTERNAL getarg

External means "A procedure that is defined by an external subprogram
or by a means other than Fortran." However, the program assumes that
the compiler provides this procedures: "Intrinsic procedures are
defined in this standard or provided by a processor". (Quotes: Annex A
of the Fortran 2003 standard.)

Thus: Replace EXTERNAL by INTRINSIC or comment those lines then it
should work.

Tobias
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