Beginner question about DreamSDK R2

[Memorix101]

Hey,
I am new to DreamSDK and dc development and I have a few questions.

I wrote a little c++ code and tried to compile it.
The terminal regularly prompts me this note:

D:/Dev/DreamSDK/msys/1.0/opt/toolchains/dc/kos/kernel/arch/dreamcast/include/arch/arch.h:32:10: note: #pragma message: Outdated toolchain: not patched for 32MB support, limiting KOS to 16MB-only behavior to retain maximum compatibility. Please update toolchain.

But the Manager always tells me that I am up to date. Maybe some of you have some information about this.

The other thing is that I am not really sure how I can enable C++11 or newer features as I get warning or error messages like:

error: in C++98 'vec' must be initialized by constructor, not by '{...}'

vec is a variable. Its datatype is a struct called vector2

Code: Select all

struct vector2
{
	int x = 0;
	int y = 0;
};

Gcc complains that I do this:

Code: Select all

 vector2 vec = { 10, 10 };

While msvc does not. Maybe this is also a conflict that msvc does certain things differently.
My code works flawlessly in msvc but not with gcc as you can see.

warning: extended initializer lists only available with -std=c++11 or -std=gnu++11 [enabled by default]

warning: 'auto' changes meaning in C++11; please remove it [-Wc++0x-compat]

warning: non-static data member initializers only available with -std=c++11 or -std=gnu++11 [enabled by default]

error: 'nullptr' was not declared in this scope

This one is really weird, so C++11 is not enabled?!

I tried a few things but the makefile ignores it maybe because of the makefile.rules applied, I don't know.
I hope some of you can help me.

Edit:
My code compiles fine under WSL (Ubuntu)
I also tested the DreamSDK R3-dev build, but this is completely unsusable for me. I can't get any of the kos-ports compiled without an error.

[|darc|]

I don't use DreamSDK so I'm not sure if this is a difference between R2 and R3, but DreamSDK definitely has a more up to date compiler to download with 32MB support, I guess it's in R3?
What error do you see when trying to compile kos-ports with R3?

[ThePerfectK]

To force C++11 you need to pass your compiler the -std=c++11 or -std=gnu++11 flag in your makefile rules. I don't use DreamSDK but I would imagine there is a makefile definition somewhere like CXXFLAGS += "blah" where you can add -std=c++11 or -std=gnu++11.

[Memorix101]

I don't use DreamSDK so I'm not sure if this is a difference between R2 and R3, but DreamSDK definitely has a more up to date compiler to download with 32MB support, I guess it's in R3?
What error do you see when trying to compile kos-ports with R3?

This happens for every kos-port in R3:

Code: Select all

Installing the KallistiOS Port...
libGL is not currently installed.
Finished processing dependencies for libGL.
Fetching libGL from git://git.code.sf.net/p/cadcdev/libgl ...
Cloning into 'libGL-2.0.0'...
Copying SCM checkout of libGL ...
Copying KOS files...
make[1]: Entering directory `/usr/opt/toolchains/dc/kos-ports/libGL/build/libGL-2.0.0'
kos-cc  -c gl-rgb.c -o gl-rgb.o
kos-cc  -c gl-fog.c -o gl-fog.o
kos-as gl-sh4-light.S -o gl-sh4-light.o
kos-cc  -c gl-light.c -o gl-light.o
kos-cc  -c gl-clip.c -o gl-clip.o
kos-cc  -c gl-clip-arrays.c -o gl-clip-arrays.o
kos-cc  -c gl-arrays.c -o gl-arrays.o
kos-cc  -c gl-pvr.c -o gl-pvr.o
kos-cc  -c gl-matrix.c -o gl-matrix.o
kos-cc  -c gl-api.c -o gl-api.o
kos-cc  -c gl-texture.c -o gl-texture.o
kos-cc  -c glu-texture.c -o glu-texture.o
kos-cc  -c gl-framebuffer.c -o gl-framebuffer.o
kos-cc  -c gl-cap.c -o gl-cap.o
kos-cc  -c gl-error.c -o gl-error.o
rm -f libGL.a
/opt/toolchains/dc/sh-elf/bin/sh-elf-gcc-ar rcs libGL.a gl-rgb.o gl-fog.o gl-sh4-light.o gl-light.o gl-clip.o gl-clip-arrays.o gl-arrays.o gl-pvr.o gl-matrix.o gl-api.o gl-texture.o glu-texture.o gl-framebuffer.o gl-cap.o gl-error.o 
make[1]: *** [linklib] Error 5
make[1]: Leaving directory `/usr/opt/toolchains/dc/kos-ports/libGL/build/libGL-2.0.0'
make: *** [build-stamp] Error 2
Cleaning up build directories ...
Cleaning up dist files ...
*** Operation done with errors.

and because of this I can't compile anything that requires kos-ports

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$ make
rm -f gltest.elf romdisk.*
kos-c++   -c gltest.cpp -o gltest.o
gltest.cpp:9:10: fatal error: GL/gl.h: No such file or directory
    9 | #include <GL/gl.h>
      |          ^~~~~~~~~
compilation terminated.
make: *** [gltest.o] Error 1