"undefined reference" error with Gcc ToolChain and MUI38.

[felmur]

Hi all,

I've this problem when I compiling a source with MUI references with Gcc Toolchain.

I've installed the Bebbo Gcc Toolchain (thank you Stefan!) and I've already written and compiled some programs based on intuition & graphics libraries using Eclipse & m68k-amigaos-gcc on my Linux PC.

Now I've started another project using MUI38.

I've copied the amiga MUI38-Developer includes into a folder "mui" under m68k-amigaos directory. I've also add the new include path to project properties.

I was forced to disable optimization (-O0) to prevent "error: asm clobber conflict with
output operand".

The source was built, but after this, I receive some "undefined reference" error from linker.

Anyone can help me?
Regards

This is my source:

#include <stdio.h>
#include <stdlib.h>


#include <libraries/mui.h>
#include <proto/muimaster.h>

#include <proto/exec.h>
#include <proto/dos.h>
#include <libraries/gadtools.h>
#include <libraries/iffparse.h>
#include <stdio.h>
#include <proto/intuition.h>
#include <proto/graphics.h>

#define MAKE_ID(a,b,c,d) ((ULONG) (a)<<24 | (ULONG) (b)<<16 | (ULONG) (c)<<8 | (ULONG) (d))

#define IPTR ULONG

struct IntuitionBase *IntuitionBase;
struct GfxBase *GfxBase;
struct Library *MUIMasterBase;

BOOL Open_Libs(void)
{
  if ( !(IntuitionBase=(struct IntuitionBase *) OpenLibrary("intuition.library",39)) )
    return(0);

  if ( !(GfxBase=(struct GfxBase *) OpenLibrary("graphics.library",0)) )
  {
    CloseLibrary((struct Library *)IntuitionBase);
    return(0);
  }

  if ( !(MUIMasterBase=OpenLibrary(MUIMASTER_NAME,19)) )
  {
    CloseLibrary((struct Library *)GfxBase);
    CloseLibrary((struct Library *)IntuitionBase);
    return(0);
  }

  return(1);
}

void Close_Libs(void)
{
  if (IntuitionBase)
    CloseLibrary((struct Library *)IntuitionBase);

  if (GfxBase)
    CloseLibrary((struct Library *)GfxBase);

  if (MUIMasterBase)
    CloseLibrary(MUIMasterBase);
}



int main(int argc,char *argv[])
{
	Object *app,*win1,*closeButton;
	ULONG signals;
	BOOL running = TRUE;

	if (!Open_Libs())
	{
		printf("Cannot open libs\n");
		return(0);
	}

	app = ApplicationObject,
		MUIA_Application_Title      , "Project",
		MUIA_Application_Version    , "$VER: Project X.X (XX.XX.XX)",
		MUIA_Application_Copyright  , " ",
		MUIA_Application_Author     , " ",
		MUIA_Application_Description, " ",
		MUIA_Application_Base       , " ",

		MUIA_Application_Window, win1 = WindowObject,
			MUIA_Window_Title, "Window Title",
			MUIA_Window_ID   , MAKE_ID('E','M','R','T'),
			WindowContents, VGroup,
				Child, MUI_MakeObject(MUIO_Label,"I am MUI Application on Amiga 3.X",NULL),
				Child, MUI_MakeObject(MUIO_HBar,8),
				Child, closeButton=MUI_MakeObject(MUIO_Button, "Quit", NULL),
			End,
		End,
	End;

	if (!app)
	{
	printf("Cannot create application.\n");
	return(0);
	}

        DoMethod(win1, MUIM_Notify, MUIA_Window_CloseRequest, TRUE,
          app, 2, MUIM_Application_ReturnID, MUIV_Application_ReturnID_Quit);

        DoMethod(closeButton, MUIM_Notify, MUIA_Pressed, FALSE,
          app, 2, MUIM_Application_ReturnID, MUIV_Application_ReturnID_Quit);

    	set(win1,MUIA_Window_Open,TRUE);// open window

	while(running)
	{
		ULONG id = DoMethod(app,MUIM_Application_Input,&signals);

		switch(id)
		{
				case MUIV_Application_ReturnID_Quit:
					if((MUI_RequestA(app,0,0,"Quit?","_Yes|_No","\33cAre you sure?",0)) == 1)
						running = FALSE;
				break;
		}
		if(running && signals) Wait(signals);
	}

	set(win1,MUIA_Window_Open,FALSE);

    if(app) MUI_DisposeObject(app);
	Close_Libs();
	exit(TRUE);
}

This is the gcc toolchain compiler output:

make all 
Building file: ../src/project.c
Invoking: Cross GCC Compiler
m68k-amigaos-gcc -I/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include -O0 -Wall -c -fmessage-length=0 -MMD -MP -MF"src/project.d" -MT"src/project.o" -o "src/project.o" "../src/project.c"
In file included from /mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/proto/muimaster.h:6:0,
                 from ../src/project.c:6:
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_DisposeObject':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:93:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_FreeAslRequest':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:111:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_FreeClass':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:120:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_Redraw':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:173:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_RejectIDCMP':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:183:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_RequestIDCMP':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:219:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_RemoveClipping':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:261:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_RemoveClipRegion':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:288:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_EndRefresh':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:313:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h: In function 'MUI_ReleasePen':
/mnt/sdb1/AmigaDev/am-gcc/m68k-amigaos/mui/include/inline/muimaster.h:340:12: warning: type defaults to 'int' in declaration of 'res' [-Wimplicit-int]
   register res __asm("d0");
            ^~~
../src/project.c: In function 'Open_Libs':
../src/project.c:26:49: warning: pointer targets in initialization differ in signedness [-Wpointer-sign]
   if ( !(IntuitionBase=(struct IntuitionBase *) OpenLibrary("intuition.library",39)) )
                                                 ^~~~~~~~~~~
../src/project.c:29:37: warning: pointer targets in initialization differ in signedness [-Wpointer-sign]
   if ( !(GfxBase=(struct GfxBase *) OpenLibrary("graphics.library",0)) )
                                     ^~~~~~~~~~~
../src/project.c:35:24: warning: pointer targets in initialization differ in signedness [-Wpointer-sign]
   if ( !(MUIMasterBase=OpenLibrary(MUIMASTER_NAME,19)) )
                        ^~~~~~~~~~~
../src/project.c: In function 'main':
../src/project.c:96:9: warning: implicit declaration of function 'DoMethod' [-Wimplicit-function-declaration]
         DoMethod(win1, MUIM_Notify, MUIA_Window_CloseRequest, TRUE,
         ^~~~~~~~
Finished building: ../src/project.c
 
Building target: project
Invoking: Cross GCC Linker
m68k-amigaos-gcc -g -noixemul -o "project" ./src/project.o   
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `MUI_NewObject':
./src/project.o:(.text+0x64): undefined reference to `MUI_NewObjectA'
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `MUI_Request':
./src/project.o:(.text+0x9a): undefined reference to `MUI_RequestA'
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `main':
./src/project.o:(.text+0x52a): undefined reference to `MUI_RequestA'
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `MUI_AslRequestTags':
./src/project.o:(.text+0x2a): undefined reference to `MUI_AslRequest'
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `MUI_AllocAslRequestTags':
./src/project.o:(.text+0x10): undefined reference to `MUI_AllocAslRequest'
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `MUI_MakeObject':
./src/project.o:(.text+0x4a): undefined reference to `MUI_MakeObjectA'
/mnt/sdb1/AmigaDev/am-gcc/lib/gcc/m68k-amigaos/6.5.0b/../../../../m68k-amigaos/bin/ld: ./src/project.o: in function `main':
./src/project.o:(.text+0x5b0): undefined reference to `MUI_DisposeObject'
collect2: error: ld returned 1 exit status
make: *** [makefile:43: project] Errore 1
"make all" terminated with exit code 2. Build might be incomplete.

11:09:02 Build Failed. 15 errors, 14 warnings. (took 211ms)

[bebbo]

First: you have to link against libmui.a by adding `-lmui` to your command line.

Plus if you are using amiga-gcc you should install the mui sdk via

make sdk=mui

PS: please shorten or remove your message in the other thread. Thanks

[felmur]

Originally Posted by bebbo

First: you have to link against libmui.a by adding `-lmui` to your command line.

Plus if you are using amiga-gcc you should install the mui sdk via

make sdk=mui

Thanks, I'll try it immediately.

[felmur]

Yes, it works. Thank you Stefan.

So, the necessary steps to compile a source using MUI with the Gcc-Toolchain under linux are:
1) You MUST NOT import MuiDeveloper38 includes into gcc-toolchain includes. So you should NOT add include path to your Eclipse project.
2) in the amiga-gcc toolchain directory, the one where you compiled the gcc-toolchain, you need to create the includes and the libmui.a library. To do this, from the shell type:

make sdk=mui PREFIX=<your installation prefix>

3) To your Eclipse project add "mui" in Properties->C/C++ Build->Settings->Cross Gcc Linker->Libraries(-l).

[bebbo]

Originally Posted by felmur

Yes, it works. Thank you Stefan.

So, the necessary steps to compile a source using MUI with the Gcc-Toolchain under linux are:
1) You MUST NOT import MuiDeveloper38 includes into gcc-toolchain includes. So you should NOT add include path to your Eclipse project.
2) in the amiga-gcc toolchain directory, the one where you compiled the gcc-toolchain, you need to create the includes and the libmui.a library. To do this, from the shell type:

make sdk=mui PREFIX=<your installation prefix>

3) To your Eclipse project add "mui" in Properties->C/C++ Build->Settings->Cross Gcc Linker->Libraries(-l).

congarats!


And if you are using `-noixemul` you can omit
- recerencing/defining the LibBases
- opening the libs
- closing the libs


since `-noixemul` provides an autoopen/-close feature.