Updated SoftwareBuilding (markdown)

SoftwareBuilding.md

@@ -1,9 +1,37 @@
-# Building BOINC
-* [Get source code](SourceCodeGit)
-* [Building on Unix](BuildSystem)
-  * [Software prerequisites](SoftwarePrereqsUnix)
-  * [Installing python-mysqldb](PythonMysql)
-* [Building applications](CompileApp)
-* [Building the client](CompileClient)
-  * [Building the client on Android](AndroidBuildClient)
-  * [Linux VM for building 'compatible' client](VmCompatibility)
+# Building BOINC software
+
+The BOINC software consists of several parts:
+* Server
+* Client software (client, Manager, boinccmd)
+* Application library (API)
+
+The [BOINC repository](SourceCodeGit) includes all of these parts.
+
+Each of these parts can be built
+for different platforms (e.g. Win, Mac, Linux, Android).
+Depending on your goals, you probably need just a subset of these.
+For example, if you're developing a BOINC project,
+you might want to build the server software for Linux,
+and the API software for Win, Mac, and Linux.
+
+## Application library [(overview)](CompileApp)
+
+You'll need this if you're developing an application to run on BOINC
+(unless you use the [Wrapper](WrapperApp) or [VirtualBox](VboxApps),
+in which case you can use pre-built executables).
+
+* [Windows](CompileAppWin)
+* [Unix](CompileAppLinux)
+* [Mac](BuildMacApp)
+* [Android](AndroidBuildApp)
+
+## Server
+
+* [Linux](BuildSystem)
+
+## Client [(overview)](CompileClient)
+* [Win](CompileClient)
+* [Linux](BuildSystem). See also [compatibility VM](VmCompatibility).
+* [Mac](MacBuild)
+* [Android](AndroidBuildClient)
+