Updated Compile in MacOS (markdown)

Compile-in-MacOS.md

@@ -14,12 +14,12 @@ In a terminal, run:
     sudo port install sdrangel
     sdrangel
 
-# Build for Mac 
+# Build for Mac
 
 ## Prerequisites
 
   * Install XCode from AppStore (If building on Mojave, use Xcode 11.3.1 from Apple developer website, rather than App Store)
-  * Install Qt 5.15.2 from https://www.qt.io/download  (Installed in $HOME/Qt) (This includes cmake)
+  * Install Qt 5.15.2 or Qt 6.6.0 (if Arm) from https://www.qt.io/download  (Installed in $HOME/Qt) (This includes cmake)
   * Install git from https://git-scm.com/download/mac if not included with XCode
   * Install svn (Subversion) if not installed as part of Xcode (From brew, macports or build from source see below)
   * Install SDRPlay API from SDRplay.com (Catalina version SDRplay_RSP_API-MaxOSX-3.07.3.pkg) - Installs headers in to /usr/local
@@ -85,7 +85,7 @@ In a terminal, run:
     make all install
 ```
 
-   * Set up PATH environment variable:
+   * On x86: Set up PATH environment variable:
 
 ```apache
     export QT_DIR=$HOME/Qt/
@@ -96,6 +96,16 @@ In a terminal, run:
     export PATH=/opt/install/nasm-2.15.05:$PATH
 ```
 
+   * On arm: Set up PATH environment variable:
+
+```apache
+    export QT_DIR=$HOME/Qt/
+    export PATH=$QT_DIR/6.6.0/macOS/bin:$PATH
+    export PATH=$QT_DIR/Tools/CMake/CMake.app/Contents/bin:$PATH
+    export PATH=/opt/install/subversion-1.14.2/bin:$PATH
+    export PATH=/opt/install/pkg-config-0.29.2/bin:$PATH
+```
+
 ## Download and build SDRangel
 
     cd /opt/build
@@ -107,6 +117,8 @@ In a terminal, run:
     cmake -Wno-dev -DDEBUG_OUTPUT=ON -DENABLE_RTLSDR=ON -DENABLE_BLADERF=ON -DENABLE_AIRSPY=ON -DENABLE_AIRSPYHF=ON -DENABLE_FUNCUBE=ON -DENABLE_HACKRF=ON -DENABLE_IIO=OFF -DENABLE_LIMESUITE=ON -DENABLE_MIRISDR=ON -DENABLE_PERSEUS=ON -DENABLE_SDRPLAY=ON -DENABLE_SOAPYSDR=OFF -DENABLE_XTRX=ON -DENABLE_USRP=ON -DENABLE_EXTERNAL_LIBRARIES=ON -DBUNDLE=ON -DRX_SAMPLE_24BIT=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=/opt/install/sdrangel -DPKG_CONFIG_USE_CMAKE_PREFIX_PATH=TRUE -DCMAKE_PREFIX_PATH="$QT_DIR/5.15.2/clang_64" ..
     make package
 
+On Arm, use -DCMAKE_PREFIX_PATH="$QT_DIR/6.6.0/macOS"
+
 -DBUNDLE=ON is the option to create a .dmg
 
 If there are SSL certificate errors fetching third party code, use -DCMAKE_TLS_VERIFY=FALSE