building gqrx with brew.md

Overview

This document describes how to compile GQRX using native OSX Qt 5 and libraries from brew.

Requierements

Skip any part if you have corresponding component already installed.

Mac OS X 10.10 Yosemite

Didn't check other versions.

homebrew

Install using instructions from official homebrew site.

Install XCode

https://developer.apple.com/xcode/download/

Actually you need Command Line Tools only, you can find that dmg package here: https://developer.apple.com/downloads/ (apple id required).

Qt5

Install Qt 5.3 Opensource:

go to official page;
click “Download Now” button and download .dmg package;
open and install Qt 5.3 into $HOME/Qt

I have not checked other Qt versions, btw.

cmake

brew install cmake

osmosdr

Open terminal and execute the following commands:

brew tap chleggett/gr-osmosdr
brew install gr-osmosdr

If you have troubles here try to install Cheetah manually:

pip install Cheetah

Thanks to https://github.com/chleggett/homebrew-gqrx .

Compiling gqrx

Download gqrx itself:

mkdir ~/gqrx-osx
cd ~/gqrx-osx
git clone https://github.com/csete/gqrx.git
mkdir build
cd build
export Qt5_DIR=~/Qt/5.3/clang_64/lib/cmake/Qt5
cmake ../gqrx
make

At this moment you have compiled working version of gqrx in the directory src, you can start it from the terminal:

./src/gqrx

If you want standalone .app file without any external dependencies, execute this magic:

mkdir -p gqrx.app/Contents/MacOS gqrx.app/Contents/Resources
echo 'APPL????' > gqrx.app/Contents/PkgInfo
cp ../gqrx/resources/icons/gqrx.icns gqrx.app/Contents/Resources
cp src/gqrx gqrx.app/Contents/MacOS

Now create file gqrx.app/Contents/Info.plist with the following content:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>NSPrincipalClass</key>
    <string>NSApplication</string>

    <key>CFBundleIconFile</key>
    <string>gqrx.icns</string>

    <key>CFBundlePackageType</key>
    <string>APPL</string>

    <key>CFBundleGetInfoString</key>
    <string>Created by Qt/CMake</string>

    <key>CFBundleSignature</key>
    <string>????</string>

    <key>CFBundleExecutable</key>
    <string>gqrx</string>

    <key>CFBundleIdentifier</key>
    <string>dk.gqrx</string>
</dict>
</plist>

And create redistributable file gqrx.dmg:

~/Qt/5.3/clang_64/bin/macdeployqt gqrx.app -dmg

At the end you should get file gqrx.dmg that contains redistributable version of gqrx.app.

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