Installation.md

@@ -9,13 +9,19 @@ Prior to the installation described below, make sure your system has the utiliti
 
 ShakeMap should run on pretty much any modern hardware running Linux or Mac OSX. A typical 4-core, 16GB system should be sufficient for most uses. Large output grids or large numbers of input stations will benefit from more memory and more cores/processors.
 
-*Note*: If you are using ShakeMap on an OSX system, you will need to have Xcode and the Xcode "command line tools" installed. The former should be installable from the App Store, and the latter by running this command in a Terminal: 
+**Note for Mac OSX**: If you are using ShakeMap on an OSX system, you will need to have Xcode and the Xcode "command line tools" installed. The former should be installable from the App Store, and the latter by running this command in a Terminal: 
 
 ```
 xcode-select --install
 ```
 
-For MacOS users who are running Mojave (10.14.x) you may run into additional problems that usually manifest as complaints about not finding the limits.h file. At this point all we can offer is for you to have a look at [this thread](https://stackoverflow.com/questions/52509602/cant-compile-c-program-on-a-mac-after-upgrade-to-mojave) and see if something works for you.
+For MacOS users who are running **Mojave (10.14.x)** you may run into additional problems that often manifest as complaints about not finding the limits.h file. At this point all we can offer is for you to have a look at [this thread](https://stackoverflow.com/questions/52509602/cant-compile-c-program-on-a-mac-after-upgrade-to-mojave) and see if something works for you. Some users have had success running:
+
+```
+open /Library/Developer/CommandLineTools/Packages/macOS_SDK_headers_for_macOS_10.14.pkg
+```
+
+and performing that install before running the install script.
 
 # Instructions
 If you are already using conda virtual environments, deactivate before proceeding