Trying to compile old Fortran

[djcmalvern]

I have inherited some Fortran77 files and I am trying to re-compile into 64-bit environment (windows 8.1).  Running code::blocks with gnu fortran compiler get following build log output:

mingw32-g++.exe   -c C:\forfiles\FortranFiles\Circle.for -o C:\forfiles\FortranFiles\Circle.o
mingw32-g++.exe  -o C:\forfiles\FortranFiles\Circle.exe C:\forfiles\FortranFiles\Circle.o   
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x3b): undefined reference to `_gfortran_st_write'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x59): undefined reference to `_gfortran_transfer_character_write'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x67): undefined reference to `_gfortran_st_write_done'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x9d): undefined reference to `_gfortran_st_read'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0xba): undefined reference to `_gfortran_transfer_real'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0xc8): undefined reference to `_gfortran_st_read_done'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x114): undefined reference to `_gfortran_st_write'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x132): undefined reference to `_gfortran_transfer_character_write'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x14f): undefined reference to `_gfortran_transfer_real_write'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x15d): undefined reference to `_gfortran_st_write_done'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x17f): undefined reference to `_gfortran_set_args'
C:\forfiles\FortranFiles\Circle.o:Circle.for:(.text+0x193): undefined reference to `_gfortran_set_options'
collect2.exe: error: ld returned 1 exit status
Process terminated with status 1 (0 minute(s), 0 second(s))
12 error(s), 0 warning(s) (0 minute(s), 0 second(s))

Can you point me to the best tutorial resource and/or tell me where to start configuring code::blocks and the compiler module for Fortran please?

djcmalvern

[oBFusCATed]

Have you tried this http://bit.ly/1v32C1r ?

[stahta01]

http://wiki.codeblocks.org/index.php?title=Installing_Fortran_Compiler

Will in time lead here
http://darmar.vgtu.lt/

[djcmalvern]

Yes oBFusCATed that was very clever.

But it did not help me to find out how to configure C::B to use different command line entry when calling the Fortran compiler, ie my question.

[djcmalvern]

Thanks stahta01 this looks exactly like what I need. I will work through it and hopefully solve my issue.

[cacb]

Thanks stahta01 this looks exactly like what I need. I will work through it and hopefully solve my issue.

I am not a mingw user, but to me it looks like you are trying to compile and link fortran code using g++, i.e. the C++ compiler/linker. I think you need to set up the C::B toolchain so that fortran files are compiled and linked with gfortran, not g++. This is important for proper runtime libraries and possibly other issues.