...access memory at address 0xfffffffe

It looks that PC is invalid causing the segmentation fault.

...2 "druntime-test-r" received signal SIGSEGV, Segmentation fault.
0xfffffffc in ?? ()
(gdb) bt
#0  0xfffffffc...

...cgi?id=18196

          Issue ID: 18196
           Summary: segmentation fault on "fwrite" on any system with...

...with follows reason:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff7460299 in fwrite () from /lib64/libc...

https://issues.dlang.org/show_bug.cgi?id=18030

github-bugzilla@puremagic.com changed:

           What...

...dlang/dmd/commit/08aca45f7eee7e614956963d149218c7ab01f358 fix Issue 18030 - Segmentation fault with __traits(getProtection) on template function...

https://issues.dlang.org/show_bug.cgi?id=18030

greenify <greeenify@gmail.com> changed:

           What...

https://issues.dlang.org/show_bug.cgi?id=18030

Walter Bright <bugzilla@digitalmars.com> changed...

Thanks You.

In mygl.d, your import of derelict.opengl needs to be public:

module mygl;
public...