Trying to build sluglibrary on Ubuntu 17.04

sluglibrary.errors

Trying to build on Ubuntu 17.04.

jwatte@ripper:~/Downloads/SlugDemo/Linux$ make
mkdir -p Output/Code
gcc -I../Code -I/usr/include -DSLUG_LINUX -DSLUG_OPENGL -m64 -msse -msse2 -std=c++11 -fno-exceptions -fno-rtti -Wall -Wno-multichar -Wno-strict-aliasing -Wno-unused-result -O3 -c ../Code/Main.cpp -o Output/Code/Main.o
gcc -I../Code -I/usr/include -DSLUG_LINUX -DSLUG_OPENGL -m64 -msse -msse2 -std=c++11 -fno-exceptions -fno-rtti -Wall -Wno-multichar -Wno-strict-aliasing -Wno-unused-result -O3 -c ../Code/SlugDemo.cpp -o Output/Code/SlugDemo.o
In file included from /usr/include/GL/glx.h:333:0,
                 from ../Code/SlugDemo.h:96,
                 from ../Code/Main.cpp:1:
/usr/include/GL/glxext.h:505:143: error: ‘GLintptr’ has not been declared
 typedef void ( *PFNGLXCOPYBUFFERSUBDATANVPROC) (Display *dpy, GLXContext readCtx, GLXContext writeCtx, GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);
                                                                                                                                               ^
/usr/include/GL/glxext.h:505:164: error: ‘GLintptr’ has not been declared
 typedef void ( *PFNGLXCOPYBUFFERSUBDATANVPROC) (Display *dpy, GLXContext readCtx, GLXContext writeCtx, GLenum readTarget, GLenum writeTarget, GLintptr readOffset, GLintptr writeOffset, GLsizeiptr size);


... and so forth

Hi,im jamie,I want to try to build sluglibrary early demo.
SlugDemo.zip is not currently available with project files for the Demo download.

You will have to ask Eric Lengyel about his demos.

he wont release the early demo now,now only release has binary exe.
Even though I know you probably don't want to send to me.
Anyway, thanks.

It's not a matter of "want," it's a matter of following the law. It's not mine to send.

its only with a demo source ,not the full source(SlugLibrary core source).it's been release by Eric Lengyel at 2017.
If I knew this at the time (2017), maybe I would download it from the SlugLibrary website by my selft. Actually just because I knew it was too late. It doesn't matter anyway, I understand.