Set flags conditionally. Attempt to print them all on one action.

tasks/miner/gpu/ethminer.yml

@@ -50,8 +50,36 @@
   shell: 'cd /root/Downloads/ethminer; mkdir -p build'
   when: ethminer_install.failed
 
+- name: Ethminer | Default Flags
+  set_fact:
+    opencl_flag: "OFF"
+    cuda_flag: "OFF"
+    dbus_flag: "OFF"
+
+- name: Ethminer | Determine OPENCL Flag
+  set_fact:
+    opencl_flag: "ON"
+  when: amdgpu is defined
+
+- name: Ethminer | Determine CUDA Flag
+  set_fact:
+    cuda_flag: "ON"
+  when: nvidia is defined
+
+- name: Ethminer | Determine DBUS Flag
+  set_fact:
+    dbus_flag: "ON"
+  when: ansible_distribution == "Pop!_OS"
+
+- name: Ethminer | Print Flags
+  debug:
+    var:
+      - opencl_flag
+      - cuda_flag
+      - dbus_flag
+
 - name: Ethminer | cmake Flags
-  shell: 'cd /root/Downloads/ethminer/build; cmake .. -DETHASHCL=ON -DETHASHCUDA=OFF -DAPICORE=ON -DBINKERN=ON -DETHDBUS=OFF -DUSE_SYS_OPENCL=OFF -DEVBUILD=ON'
+  shell: 'cd /root/Downloads/ethminer/build; cmake .. -DETHASHCL={{ opencl_flag }} -DETHASHCUDA={{ cuda_flag }} -DAPICORE=ON -DBINKERN=ON -DETHDBUS={{ dbus_flag }} -DUSE_SYS_OPENCL=OFF -DEVBUILD=ON'
   when: ethminer_install.failed
 
 - name: Ethminer | cmake Build