MUI and GCC >3

[ciVic]

Hi all,

For my project I have to use a newer GCC. It compiled on OS 3 (with 2.95.3), OS 4 and MorphOS. However, using something newer than 3 leads to various errors. Using 6.5.0b I get:

m68k-amigaos-gcc -I"." -I"../include" -I"../../AmiSSL/Developer/include" -Wno-write-strings  -m68020 -MMD -c ../main.c -o main.o
../main.c:299: unterminated macro call
../main.c:497: unterminated macro call
...

Using 3.4.6:

../main.c:497:2: unterminated argument list invoking macro "MUI_NewObject"
../main.c: In function `main':
../main.c:299: error: syntax error at end of input

It seems that this does not work anymore (and then very likely everything else also):

app = ApplicationObject, End;

Does somebody know what's going on here? Obviously the old headers (e.g. inline/muimaster.h) cannot work anymore because of the inline assembler. The compiler have their own header for MUI but I cannot find a doc for that.

[BSzili]

In case someone else runs into this problem, I was able to work it around with this stub:

#undef MUI_NewObject
Object *MUI_NewObject(CONST_STRPTR classname, Tag tag1, ...)
{
	return MUI_NewObjectA(classname, (struct TagItem*)&tag1);
}

There's some compatibility issue with GCC inline macros and MUI's way of stitching functions together with multiple macros.

[bebbo]

Originally Posted by BSzili

In case someone else runs into this problem, I was able to work it around with this stub:

#undef MUI_NewObject
Object *MUI_NewObject(CONST_STRPTR classname, Tag tag1, ...)
{
    return MUI_NewObjectA(classname, (struct TagItem*)&tag1);
}

There's some compatibility issue with GCC inline macros and MUI's way of stitching functions together with multiple macros.

Using amiga-gcc and installing the mui SDK

make sdk=mui

should work out of the box.

[Samurai_Crow]

Originally Posted by ciVic

Hi all,

For my project I have to use a newer GCC. It compiled on OS 3 (with 2.95.3), OS 4 and MorphOS. However, using something newer than 3 leads to various errors. Using 6.5.0b I get:

m68k-amigaos-gcc -I"." -I"../include" -I"../../AmiSSL/Developer/include" -Wno-write-strings  -m68020 -MMD -c ../main.c -o main.o
../main.c:299: unterminated macro call
../main.c:497: unterminated macro call
...

Using 3.4.6:

../main.c:497:2: unterminated argument list invoking macro "MUI_NewObject"
../main.c: In function `main':
../main.c:299: error: syntax error at end of input

It seems that this does not work anymore (and then very likely everything else also):

app = ApplicationObject, End;

Does somebody know what's going on here? Obviously the old headers (e.g. inline/muimaster.h) cannot work anymore because of the inline assembler. The compiler have their own header for MUI but I cannot find a doc for that.

Are you trying to use C headers in C++? If so, you need extern "C" all over the place to deactivate name mangling. GCC 3 had a different name mangling scheme than GCC 2. On Haiku 32-bit we run into that bug all the time because the shared object files are stored in name mangled C++ written for BeOS in GCC 2.x.

[bebbo]

Originally Posted by Samurai_Crow

Are you trying to use C headers in C++? If so, you need extern "C" all over the place to deactivate name mangling. GCC 3 had a different name mangling scheme than GCC 2. On Haiku 32-bit we run into that bug all the time because the shared object files are stored in name mangled C++ written for BeOS in GCC 2.x.

It's rather because of the inline macros. With these you need to define

#define NO_INLINE_STDARG
#define NO_INLINE_VARARGS

since the macros don't support nesting.