update AMD install docu

- remove link to the AMD APP SDK from a share hoster
- update windows/linux documentation

doc/compile_Linux.md

@@ -2,10 +2,17 @@
 
 ## Install Dependencies
 
-### AMD APP SDK 3.0 (only needed to use AMD GPUs)
+### AMD Driver (only needed to use AMD GPUs)
 
-- download and install the latest version from http://debian.nullivex.com/amd/AMD-APP-SDKInstaller-v3.0.130.136-GA-linux64.tar.bz2 (see https://github.com/fireice-uk/xmr-stak/issues/1511#issuecomment-385120692)
-  (do not wonder why it is a link to a dropbox but AMD has removed the SDK downloads, see https://community.amd.com/thread/228059)
+- the AMD APP SDK is not longer needed (all is included in the driver package)
+- download & unzip the AMD driver: https://www.amd.com/en/support
+- run `./amdgpu-pro-install --opencl=legacy,pal` from the unzipped folder
+- set the environment variable to opencl `export AMDAPPSDKROOT=/opt/amdgpu-pro/`
+
+**ATTENTION** The linux driver 18.3 creating invalid shares. 
+If you have an issue with `invalid shares` please downgrade your driver or switch to ROCm.
+
+For linux also the OpenSource driver ROCm 1.9.X+ is a well working alternative, see https://rocm.github.io/ROCmInstall.html
 
 ### Cuda 8.0+ (only needed to use NVIDIA GPUs)
 

doc/compile_Windows.md

@@ -30,7 +30,12 @@
     - CUDA/Runtime
     - Driver components
 
-### AMD APP SDK 3.0 (only needed for AMD GPUs)
+### AMD DRIVER/APP SDK 3.0 (only needed for AMD GPUs)
+
+- Download & install the AMD driver: https://www.amd.com/en/support
+
+**ATTENTION** Many windows driver 18.5+ creating invalid shares.
+If you have an issue with `invalid shares` please downgrade your driver.
 
 - Download and install the latest version from http://amd-dev.wpengine.netdna-cdn.com/app-sdk/installers/APPSDKInstaller/3.0.130.135-GA/full/AMD-APP-SDKInstaller-v3.0.130.135-GA-windows-F-x64.exe
   (do not wonder why it is a link to a netdna-cdn.com but AMD has removed the SDK downloads, see https://community.amd.com/thread/222855)