Updated Build Linux (markdown)

Build-Linux.md

@@ -16,6 +16,39 @@ If you didn't install your own OpenGL driver/headers (via Nvidia, AMD binaries o
 $ sudo apt-get install freeglut3 freeglut3-dev
 ```
 
+###wxWidgets Alternate method:
+
+First try building CubicSDR without this part; if you're lucky your distribution will have the right stuff and this time consuming step won't be necessary; but in the case where wxWidgets just won't play along this is an option.
+
+To build a special static copy of wxWidgets just for CubicSDR (or whatever else you might need it for) do the following:
+
+_Note that you can replace '~/Develop/wxWidgets-staticlib' with any user path you'd prefer; '~' is just a standard alias meaning "the current user home directory"._
+
+```bash
+$ wget https://github.com/wxWidgets/wxWidgets/releases/download/v3.0.2/wxWidgets-3.0.2.tar.bz2
+[ downloading.. ]
+$ tar -xvjf wxWidgets-3.0.2.tar.bz2  
+[ unpacking.. ]
+$ cd wxWidgets-3.0.2/
+wxWidgets-3.0.2$ mkdir ~/Develop/wxWidgets-staticlib
+wxWidgets-3.0.2$ ./autogen.sh 
+wxWidgets-3.0.2$ ./configure --with-opengl --disable-shared --enable-monolithic --with-libjpeg --with-libtiff --with-libpng --with-zlib --disable-sdltest --enable-unicode --enable-display --enable-propgrid --disable-webkit --disable-webview --disable-webviewwebkit --prefix=~/Develop/wxWidgets-staticlib CXXFLAGS="-std=c++0x" --with-libiconv=/usr
+
+[ configuring.. ]
+
+wxWidgets-3.0.2$ make && make install
+
+[ building and installed to ~/Develop/wxWidgets-staticlib ]
+```
+
+With that built, you can alter the upcoming instructions for CubicSDR cmake setup to include the following parameters so that it finds the wx-config for your build of wxWidgets:
+
+```
+...
+ build$ cmake ../ -DCMAKE_BUILD_TYPE=Release -DwxWidgets_CONFIG_EXECUTABLE=~/Develop/wxWidgets-staticlib/bin/wx-config
+...
+```
+
 ###Build and install SoapySDR
 ```bash
 $ git clone https://github.com/pothosware/SoapySDR.git