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Porting code - Windows to Linux

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Thunderchook:
Hi,

I've been working on my C++ skills for quite some time.
Thus, I've moved from Windows to Linux, back to Windows and back to Linux again.

I have some code that I've written in one, and then moved over to the other.

The code is in the original files and same directory structure as before.
However, when I try to compile up this code, I get a laundry list of errors, none of which pertains to my actual code.
If I copy the raw code back into files of the same name under the new operating system, it compiles up just fine.

So, my question is: What must I do with my code to successfully port it over to a new operating system?

I'm currently trying to compile under Ubuntu 21.04.
The version of Code::Blocks I am using is: 20.03

Many thanks.

Miguel Gimenez:

--- Quote --- I get a laundry list of errors
--- End quote ---

Can you post some of them (in code tags)?

Thunderchook:
It just occurred to me that there are many, many path references to the old location from when it was on a Windows machine.
Is there a file or setting that I must clear to make it re-parse and pick up all the new locations?



||=== Build: Debug in Bignumbers (compiler: GNU GCC Compiler) ===|
/usr/bin/ld: obj/Debug/cbit.o||in function `Cbit::Cbit()':|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|3|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|5|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(char const*)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|3|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|3|undefined reference to `_Unwind_Resume'|
/usr/bin/ld: obj/Debug/cbit.o||in function `Cbit::~Cbit()':|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|18|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: obj/Debug/cbit.o||in function `Cbit::getDate[abi:cxx11]() const':|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|27|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'|
/usr/bin/ld: obj/Debug/cbit.o||in function `Cbit::setDate(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/cbit.cpp|75|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::operator=(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|10|undefined reference to `__main'|
/usr/bin/ld: obj/Debug/main.o||in function `main':|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|12|undefined reference to `std::allocator<char>::allocator()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|12|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|12|undefined reference to `std::allocator<char>::~allocator()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|13|undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|13|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|14|undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|15|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::operator>><char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|18|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|18|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|22|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|22|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|22|undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|22|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|22|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|22|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|12|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|25|undefined reference to `std::allocator<char>::~allocator()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|25|undefined reference to `_Unwind_Resume'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|18|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|12|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/main.cpp|12|undefined reference to `_Unwind_Resume'|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Program Files/CodeBlocks/MinGW/lib/gcc/x86_64-w64-mingw32/8.1.0/include/c++/iostream|74|undefined reference to `std::ios_base::Init::~Init()'|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Program Files/CodeBlocks/MinGW/lib/gcc/x86_64-w64-mingw32/8.1.0/include/c++/iostream|74|undefined reference to `std::ios_base::Init::Init()'|
/usr/bin/ld: obj/Debug/vecpart.o||in function `VecBit::readfile(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >)':|
C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|25|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|35|undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::basic_ifstream()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|36|undefined reference to `std::basic_ifstream<char, std::char_traits<char> >::open(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::_Ios_Openmode)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|40|undefined reference to `std::basic_ios<char, std::char_traits<char> >::fail() const'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|42|undefined reference to `std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|42|undefined reference to `std::ostream::operator<<(std::ostream& (*)(std::ostream&))'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|46|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|47|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|50|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|50|undefined reference to `std::basic_ios<char, std::char_traits<char> >::operator bool() const'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|53|undefined reference to `std::__cxx11::basic_stringstream<char, std::char_traits<char>, std::allocator<char> >::basic_stringstream(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&, std::_Ios_Openmode)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|56|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|57|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|57|undefined reference to `std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::~basic_string()'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|61|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|67|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|74|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|81|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char)'|
/usr/bin/ld: C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/C:/Users/uberl/Documents/Workspace/CodeBlocks/Bignumbers/vecpart.cpp|88|undefined reference to `std::basic_istream<char, std::char_traits<char> >& std::getline<char, std::char_traits<char>, std::allocator<char> >(std::basic_istream<char, std::char_traits<char> >&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, char)'|
||More errors follow but not being shown.|
||Edit the max errors limit in compiler options...|
||=== Build failed: 50 error(s), 0 warning(s) (0 minute(s), 0 second(s)) ===|

Miguel Gimenez:
What happens if you click Rebuild?

AndrewCot:
Check the project build settings (right click on the project and select the "Build Options" menu item) to check for references to your windows directories.
OR
In a text editor open the project file (projectname.cbp) and search for references to your windows directories.

Once you find the reference update it for Linux if applicable or remove it.

BTW: You may end up needing two project files, one for Linux and one for windows.

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