fix direwolf build (uses cmake now)

docker/Dockerfiles/Dockerfile-base

@@ -4,6 +4,7 @@ COPY docker/files/js8call/js8call-hamlib.patch \
      docker/files/wsjtx/wsjtx.patch \
      docker/files/wsjtx/wsjtx-hamlib.patch \
      docker/files/dream/dream.patch \
+     docker/files/direwolf/direwolf-hamlib.patch \
      docker/scripts/install-dependencies.sh /
 RUN /install-dependencies.sh && \
     rm /install-dependencies.sh && \

docker/files/direwolf/direwolf-hamlib.patch

@@ -0,0 +1,20 @@
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 9e710f5..da90b43 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -257,13 +257,8 @@ else()
+   set(GPSD_LIBRARIES "")
+ endif()
+ 
+-find_package(hamlib)
+-if(HAMLIB_FOUND)
+-  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DUSE_HAMLIB")
+-else()
+-  set(HAMLIB_INCLUDE_DIRS "")
+-  set(HAMLIB_LIBRARIES "")
+-endif()
++set(HAMLIB_INCLUDE_DIRS "")
++set(HAMLIB_LIBRARIES "")
+ 
+ if(LINUX)
+   find_package(ALSA REQUIRED)

docker/scripts/install-dependencies.sh

@@ -72,10 +72,14 @@ rm ${WSJT_TGZ}
 git clone --depth 1 -b 1.6 https://github.com/wb2osz/direwolf.git
 cd direwolf
 # hamlib is present (necessary for the wsjt-x and js8call builds) and would be used, but there's no real need.
-# by setting enable_hamlib we prevent direwolf from linking to it, and it can be stripped at the end of the script.
-make enable_hamlib=
+# this patch prevents direwolf from linking to it, and it can be stripped at the end of the script.
+patch -Np1 < /direwolf-hamlib.patch
+mkdir build
+cd build
+cmake ..
+make
 make install
-cd ..
+cd ../..
 rm -rf direwolf
 # strip lots of generic documentation that will never be read inside a docker container
 rm /usr/local/share/doc/direwolf/*.pdf