UPD: README additions for gtkmm

leafyrabbet · leafyrabbet · commit 8ca07542c481 · 2020-05-18T13:15:26.000-04:00
diff --git a/README.md b/README.md
@@ -48,7 +48,7 @@ bre install gcc;
 1. Homebrew install GTK+ v3 to macOS system:
 ```bash
 brew install gtk+3;
-brew install gtkmm3;  # Optional, C++ bindings in-case you want to do C++ development.
+brew install gtkmm3;  # C++ bindings, to do modern C++ (instead of C) development.
 ```
 1. Go to the [test_install README](test_install/README.md) and confirm that the application builds and runs.
 
diff --git a/test_install/README.md b/test_install/README.md
@@ -7,14 +7,16 @@ You should have been directed here as the first to run after cloning out this re
 ## Prerequisites
 
 - GTK+ v3 installed on system.
+- gtkmm v3 installed on system.
 - C++ Compiler (modern).
 - GNU Make v3.82 or higher.
 
 ## Tested System Setup
 
 - macOS Catalina (10.15.4)
 - Homebrew: [https://brew.sh/](https://brew.sh/)
-- GTK+3 install: 3.24.18 (2020-04-14, macOS Homebrew)
+- GTK+3 install: 3.24.18 (macOS Homebrew)
+- gtkmm3 install: 3.24.2 (macOS Homebrew)
 - GCC install: 9.3.0_1 (macOS Homebrew)
 - GNU Make (`gmake`) install: 4.3 (macOS Homebrew)
 
