I had trie with crimson 15.12, here is the issue
Supported adapter detected.
Check if system has the tools required for installation.
Uninstalling any previously installed drivers.
[Message] Kernel Module : Trying to install a precompiled kernel module.
[Message] Kernel Module : Precompiled kernel module version mismatched.
[Message] Kernel Module : Found kernel module build environment, generating kernel module now.
AMD kernel module generator version 2.1
doing Makefile based build for kernel 2.6.x and higher
rm -rf *.c *.h *.o *.ko *.a .??* *.symvers
make -C /lib/modules/4.5.2/build SUBDIRS=/lib64/modules/fglrx/build_mod/2.6.x modules
make[1]: Entering directory '/usr/src/linux-4.5.2'
CC [M] /lib64/modules/fglrx/build_mod/2.6.x/firegl_public.o
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c: In function ?firegl_major_proc_read?:
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c:634:9: error: void value not ignored as it ought to
len = seq_printf(m, "%d\n", major);
^
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c: In function ?KCL_fpu_save_init?:
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c:6458:49: error: ?XSTATE_FP? undeclared (first use in
if (!(fpu->state.xsave.header.xfeatures & XSTATE_FP))
^
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c:6458:49: note: each undeclared identifier is reporte
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c: At top level:
/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.c:6448:12: warning: ?KCL_fpu_save_init? defined but no
static int KCL_fpu_save_init(struct task_struct *tsk)
^
scripts/Makefile.build:258: recipe for target '/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.o' fail
make[2]: *** [/lib64/modules/fglrx/build_mod/2.6.x/firegl_public.o] Error 1
Makefile:1391: recipe for target '_module_/lib64/modules/fglrx/build_mod/2.6.x' failed
make[1]: *** [_module_/lib64/modules/fglrx/build_mod/2.6.x] Error 2
make[1]: Leaving directory '/usr/src/linux-4.5.2'
Makefile:88: recipe for target 'kmod_build' failed
make: *** [kmod_build] Error 2
build failed with return value 2
[Error] Kernel Module : Failed to compile kernel module - please consult readme.