split soapysdr from the sdrplay build

docker/scripts/install-dependencies-sdrplay.sh

@@ -41,13 +41,7 @@ cd ..
 rm -rf sdrplay
 rm $BINARY
 
-git clone https://github.com/pothosware/SoapySDR
-cmakebuild SoapySDR
-
 git clone https://github.com/pothosware/SoapySDRPlay.git
 cmakebuild SoapySDRPlay
 
-git clone https://github.com/rxseger/rx_tools
-cmakebuild rx_tools
-
 apk del .build-deps

docker/scripts/install-dependencies-soapysdr.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+set -euxo pipefail
+
+function cmakebuild() {
+  cd $1
+  mkdir build
+  cd build
+  cmake ..
+  make
+  make install
+  cd ../..
+  rm -rf $1
+}
+
+cd /tmp
+
+BUILD_PACKAGES="git cmake make patch wget sudo udev gcc g++"
+
+apk add --no-cache --virtual .build-deps $BUILD_PACKAGES
+
+git clone https://github.com/pothosware/SoapySDR
+cmakebuild SoapySDR
+
+git clone https://github.com/rxseger/rx_tools
+cmakebuild rx_tools
+
+apk del .build-deps