Building on Linux...

[MBilderbeek]

Hi, thanks for your work! I'm trying to compile the code on Linux and I ran into a few issues;

1. expressions/expression_operator_power.cpp needs #include <cmath> and use std::pow on/around line 38
2. With this, all files compile but I get linker errors:

/usr/bin/ld: compiler.o: in function `CCIRCLE::CCIRCLE()':
compiler.cpp:(.text._ZN7CCIRCLEC2Ev[_ZN7CCIRCLEC5Ev]+0x1b): undefined reference to `vtable for CCIRCLE'
/usr/bin/ld: compiler.o: in function `CGET::CGET()':
compiler.cpp:(.text._ZN4CGETC2Ev[_ZN4CGETC5Ev]+0x1b): undefined reference to `vtable for CGET'
/usr/bin/ld: compiler.o: in function `CSETADJUST::CSETADJUST()':
compiler.cpp:(.text._ZN10CSETADJUSTC2Ev[_ZN10CSETADJUSTC5Ev]+0x1b): undefined reference to `vtable for CSETADJUST'
/usr/bin/ld: compiler.o: in function `CSETBEEP::CSETBEEP()':
compiler.cpp:(.text._ZN8CSETBEEPC2Ev[_ZN8CSETBEEPC5Ev]+0x1b): undefined reference to `vtable for CSETBEEP'
/usr/bin/ld: compiler.o: in function `CSETPROMPT::CSETPROMPT()':
compiler.cpp:(.text._ZN10CSETPROMPTC2Ev[_ZN10CSETPROMPTC5Ev]+0x1b): undefined reference to `vtable for CSETPROMPT'
/usr/bin/ld: compiler.o: in function `CSETSCREEN::CSETSCREEN()':
compiler.cpp:(.text._ZN10CSETSCREENC2Ev[_ZN10CSETSCREENC5Ev]+0x1b): undefined reference to `vtable for CSETSCREEN'
/usr/bin/ld: compiler.o: in function `CSETTITLE::CSETTITLE()':
compiler.cpp:(.text._ZN9CSETTITLEC2Ev[_ZN9CSETTITLEC5Ev]+0x1b): undefined reference to `vtable for CSETTITLE'
/usr/bin/ld: expressions/expression.o: in function `CEXPRESSION_POINT::CEXPRESSION_POINT()':
expression.cpp:(.text._ZN17CEXPRESSION_POINTC2Ev[_ZN17CEXPRESSION_POINTC5Ev]+0x1b): undefined reference to `vtable for CEXPRESSION_POINT'

I have tried to add virtual emtpy destructor definitions here and there, but that didn't seem to help enough... any idea?

[hra1129]

Thanks!

I have added the include you suggested.
In addition, changed int i to size_t i in compile.h.
With these modifications, both compilation and linking are complete in my environment (gcc 11.4).
Please try it.

[MBilderbeek]

Thanks for trying to solve the issue.

I still get the following link errors:

usr/bin/ld: compiler.o: warning: relocation against `_ZTV10CSETPROMPT' in read-only section `.text._ZN10CSETPROMPTC2Ev[_ZN10CSETPROMPTC5Ev]'
/usr/bin/ld: compiler.o: in function `CCIRCLE::CCIRCLE()':
compiler.cpp:(.text._ZN7CCIRCLEC2Ev[_ZN7CCIRCLEC5Ev]+0x1b): undefined reference to `vtable for CCIRCLE'
/usr/bin/ld: compiler.o: in function `CGET::CGET()':
compiler.cpp:(.text._ZN4CGETC2Ev[_ZN4CGETC5Ev]+0x1b): undefined reference to `vtable for CGET'
/usr/bin/ld: compiler.o: in function `CCLOSE::CCLOSE()':
compiler.cpp:(.text._ZN6CCLOSEC2Ev[_ZN6CCLOSEC5Ev]+0x1b): undefined reference to `vtable for CCLOSE'
/usr/bin/ld: compiler.o: in function `COPEN::COPEN()':
compiler.cpp:(.text._ZN5COPENC2Ev[_ZN5COPENC5Ev]+0x1b): undefined reference to `vtable for COPEN'
/usr/bin/ld: compiler.o: in function `CSETADJUST::CSETADJUST()':
compiler.cpp:(.text._ZN10CSETADJUSTC2Ev[_ZN10CSETADJUSTC5Ev]+0x1b): undefined reference to `vtable for CSETADJUST'
/usr/bin/ld: compiler.o: in function `CSETBEEP::CSETBEEP()':
compiler.cpp:(.text._ZN8CSETBEEPC2Ev[_ZN8CSETBEEPC5Ev]+0x1b): undefined reference to `vtable for CSETBEEP'
/usr/bin/ld: compiler.o: in function `CSETPROMPT::CSETPROMPT()':
compiler.cpp:(.text._ZN10CSETPROMPTC2Ev[_ZN10CSETPROMPTC5Ev]+0x1b): undefined reference to `vtable for CSETPROMPT'
/usr/bin/ld: compiler.o: in function `CSETSCREEN::CSETSCREEN()':
compiler.cpp:(.text._ZN10CSETSCREENC2Ev[_ZN10CSETSCREENC5Ev]+0x1b): undefined reference to `vtable for CSETSCREEN'
/usr/bin/ld: compiler.o: in function `CSETTITLE::CSETTITLE()':
compiler.cpp:(.text._ZN9CSETTITLEC2Ev[_ZN9CSETTITLEC5Ev]+0x1b): undefined reference to `vtable for CSETTITLE'
/usr/bin/ld: expressions/expression.o: in function `CEXPRESSION_POINT::CEXPRESSION_POINT()':
expression.cpp:(.text._ZN17CEXPRESSION_POINTC2Ev[_ZN17CEXPRESSION_POINTC5Ev]+0x1b): undefined reference to `vtable for CEXPRESSION_POINT'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE
collect2: error: ld returned 1 exit status
make: *** [Makefile:162: msx_bacon] Fout 1

$ g++ --version
g++ (Debian 13.2.0-13) 13.2.0

[hra1129]

No error occurs in my environment.

gcc version 11.4.0

On Ubuntu 22.04 on WSL, gcc 11.4 seems to be the standard, so 13.2 cannot be easily tried.

[MBilderbeek]

Hi, thanks for looking into this. I get the same link errors when using g++-11....

$ g++-11 --version
g++-11 (Debian 11.4.0-7) 11.4.0

so giving

/usr/bin/ld: compiler.o: warning: relocation against `_ZTV10CSETPROMPT' in read-only section `.text._ZN10CSETPROMPTC2Ev[_ZN10CSETPROMPTC5Ev]'
/usr/bin/ld: compiler.o: in function `CCIRCLE::CCIRCLE()':
compiler.cpp:(.text._ZN7CCIRCLEC2Ev[_ZN7CCIRCLEC5Ev]+0x1b): undefined reference to `vtable for CCIRCLE'
/usr/bin/ld: compiler.o: in function `CGET::CGET()':
compiler.cpp:(.text._ZN4CGETC2Ev[_ZN4CGETC5Ev]+0x1b): undefined reference to `vtable for CGET'
/usr/bin/ld: compiler.o: in function `CCLOSE::CCLOSE()':
compiler.cpp:(.text._ZN6CCLOSEC2Ev[_ZN6CCLOSEC5Ev]+0x1b): undefined reference to `vtable for CCLOSE'
/usr/bin/ld: compiler.o: in function `COPEN::COPEN()':
compiler.cpp:(.text._ZN5COPENC2Ev[_ZN5COPENC5Ev]+0x1b): undefined reference to `vtable for COPEN'
/usr/bin/ld: compiler.o: in function `CSETADJUST::CSETADJUST()':
compiler.cpp:(.text._ZN10CSETADJUSTC2Ev[_ZN10CSETADJUSTC5Ev]+0x1b): undefined reference to `vtable for CSETADJUST'
/usr/bin/ld: compiler.o: in function `CSETBEEP::CSETBEEP()':
compiler.cpp:(.text._ZN8CSETBEEPC2Ev[_ZN8CSETBEEPC5Ev]+0x1b): undefined reference to `vtable for CSETBEEP'
/usr/bin/ld: compiler.o: in function `CSETPROMPT::CSETPROMPT()':
compiler.cpp:(.text._ZN10CSETPROMPTC2Ev[_ZN10CSETPROMPTC5Ev]+0x1b): undefined reference to `vtable for CSETPROMPT'
/usr/bin/ld: compiler.o: in function `CSETSCREEN::CSETSCREEN()':
compiler.cpp:(.text._ZN10CSETSCREENC2Ev[_ZN10CSETSCREENC5Ev]+0x1b): undefined reference to `vtable for CSETSCREEN'
/usr/bin/ld: compiler.o: in function `CSETTITLE::CSETTITLE()':
compiler.cpp:(.text._ZN9CSETTITLEC2Ev[_ZN9CSETTITLEC5Ev]+0x1b): undefined reference to `vtable for CSETTITLE'
/usr/bin/ld: expressions/expression.o: in function `CEXPRESSION_POINT::CEXPRESSION_POINT()':
expression.cpp:(.text._ZN17CEXPRESSION_POINTC2Ev[_ZN17CEXPRESSION_POINTC5Ev]+0x1b): undefined reference to `vtable for CEXPRESSION_POINT'
/usr/bin/ld: warning: creating DT_TEXTREL in a PIE

I wouldn't expect it to make a difference with link errors though.

What I do is this:
$ cd msx_basic_compiler
$ make
and this gives me the above results.

[hra1129]

Where did you use the script to compile?
If you used Makefile, you must run python makefile_gen.py beforehand or you may get an error.

If you used Linux/compile.sh, you will not get an error.

For now, I have updated the Makefile.

[Fuzzillogic]

FWIW, as mentioned in #31, the current provided Makefile compiles without a glitch on Kubuntu 25.10 using a simple make all.