Environment path issues; string.h cannot be included

[bferguson3]

1. The makecart bat contains white space and does not include C: in the linux-style path, which causes it to fail to run, obviously. Bolded: set GDK=c:/sgdk_ GDKWIN=C:\sgdk** PATH=c:**/sgdk;C:\sgdk;C:\sgdk\bin C:\sgdk\bin\make -f C:\sgdk\makefile.gen

2. Windows will never include string.h because of the way it is defined in the header.

   
   #if (ENABLE_NEWLIB == 1) && !defined(_NEWLIB_STRING_H_)
   #define _NEWLIB_STRING_H_
   #include_next <string.h> // Include string.h from newlib
   #undef _STRING_H_        // Will be defined again just below
   #endif

ifndef _STRINGH

define _STRINGH

I don't know what newlib is, but regardless, this is always ignored by the compiler with the options you have set up by default. Please migrate this code to something like "genstring.h" to avoid silly conflicts.

[Stephane-D]

Thanks for reporting ! I just fixed 1. (the batch wasn't from me but i should have tested it, i guess it worked on older OS).

For point 2. : NEWLIB is a replacement to default GLIBC, to be honest SGDK is not intended to be used with Newlib but some people want to use it so they can modify the config.h file to enable it, in which case some newlib methods will cohabit with defaults SGDK ones. And SGDK does use _STRINGH as that should be the default String implementation, newlib is actually the alternative one in that case.

[bferguson3]

Let me try rephrasing my problem:

fix16toStr() is undefined

[Stephane-D]

It is (just tried to be sure)... you probably messed up something. Are you trying to use some includes using same definition as SGDK (as _ STRINGH obviously).

[bferguson3]

src/main.c: In function 'main':
src/main.c:179:21: warning: implicit declaration of function 'fix16toStr' [-Wimplicit-function-declaration]
         char* var = fix16toStr(t);
                     ^~~~~~~~~~

It insists on including the built-in string.h first. Do you have other build environments on your machine? Why does your include path not find those? Are you building with a visual studio project and accompanying settings, or a blank project and command line batch?

Besides adding -nostdinc to attempt to fix this issue my build environment is only what sgdk has generated.

[bferguson3]

Also, your toolchain requires java to be on the path if using any res files.

The batch should be:

set GDK=C:/sgdk
GDK_WIN=C:\sgdk;
PATH=C:\sgdk;C:\sgdk\bin;C:\Program Files\Java\jdk1.8.0_271\bin
C:\sgdk\bin\make -f C:\sgdk\makefile.gen

[Stephane-D]

I don't have other build environment and I indeed simply use the default makefile to build up my project (i use Code::Blocks IDE which can build from makefile) : If you go to wiki SGDK usage page :
You can see you simply need to execute that command to build up your project: %GDK_WIN%\bin\make -f %GDK_WIN%\makefile.gen

And here is an example i just tried with a fix16ToStr(..) call :

So i guess there is something not properly setup in your development environment.

[bferguson3]

%GDK_WIN%\bin\make -f %GDK_WIN%\makefile.gen This is the command I've been using all this time until trying to debug this issue. I'll try Code::Blocks, perhaps you have something odd going on there with paths.

Obviously, I've seen the wiki. I wouldn't be this far if I haven't.

[Stephane-D]

Also, your toolchain requires java to be on the path if using any res files.

The batch should be:

set GDK=C:/sgdk
GDK_WIN=C:\sgdk;
PATH=C:\sgdk;C:\sgdk\bin;C:\Program Files\Java\jdk1.8.0_271\bin
C:\sgdk\bin\make -f C:\sgdk\makefile.gen

To be honest the script was done a lot time ago when java wasn't yet used, that partially explains the problem. Still we can expect the java bin to already be in path if properly installed as we cannot easily find where java is installed.

Obviously, I've seen the wiki. I wouldn't be this far if I haven't.

Then i can just repeat you there is something wrong somewhere with your dev end as there is nothing involded in code::blocks here, i just shown you the result executing from command line Did you tried from command line just to check it ? Is only fix16ToStr(..) not found ? or any string methods ? others methods are properly found ? just including "genesis.h" is enough to give you access to full SGDK API.

[bferguson3]

C:\Users\Bent\Documents\Projects\genesis\stringtest>C:\sgdk\bin\make -f C:\sgdk\makefile.gen 
C:/sgdk/bin/mkdir -p src/boot
C:/sgdk/bin/mkdir -p out
C:/sgdk/bin/gcc -nostdinc -BC:/sgdk/bin -n -T C:/sgdk/md.ld -nostdlib out/sega.o @out/cmd_ C:/sgdk/lib/libmd.a C:/sgdk/lib/libgcc.a -o out/rom.out -Wl,--gc-sections
C:\Users\Bent\AppData\Local\Temp\ccko7DaU.ltrans1.ltrans.o: In function `_reset_entry':
<artificial>:(.text+0x1a4): undefined reference to `fix16toStr'
C:\Users\Bent\AppData\Local\Temp\ccko7DaU.ltrans1.ltrans.o: In function `_start_entry':
<artificial>:(.text+0x976): undefined reference to `fix16toStr'
make: *** [out/rom.out] Error 1

from this project:

#include <genesis.h>
int main(u16 hard) // hard == 0 if reset button was pressed
{
    u16 test = 0;
    while(TRUE)
    {     
        char* var = fix16toStr(test);
        SYS_doVBlankProcess();
    }
    return 0;
}

There actually is a small problem with code blocks, when you set up the compiler, you set an execution directory. According to your directions (even though they are out of date, the new code blocks is different) the execution directory is the SGDK directory, but that is not the case for how it works right now. (Either way I couldn't get code blocks to compile.)

[Stephane-D]

I should have look more carefully to your initial message. The correct method name is fix16ToStr(..) (case is important) then your example doesn't use it correctly (there is 3 parameters for this method). You have a doxygen describing all the methods in SGDK doc folder but you can also directly look onto method declaration in .h unit as doxygen comes from there. Depending how you setup your IDE you can have auto-completion and even the doxygen displaying when you're coding, making life much easier when you have to deal with SGDK API. What i do with Code::Blocks to get it is to have a SGDK project including all SGDK sources / includes files aside my others projects but I guess you can do it in a more elegant way with VC Studio.

I guess i can close this one ?

[bferguson3]

Ugh, thank you!

Gonna shoot myself later.