Adding CMake Python detection fix for Travis and macOS build

- Fixing CMake to always force python3 binary (this should always work)
- Adding macOS Travis build (clang and gcc)
- Disabling all clang builds until macOS (lack of packages) and Linux (broken Travis repos) are fixed

.travis.yml

@@ -8,6 +8,7 @@ language:
 
 os:
   - linux
+  - osx
 
 compiler:
   - clang
@@ -53,6 +54,34 @@ matrix:
       env: DIR=Bootloader/Builds SCRIPT=mk20dx128vlf5.bash
     - compiler: clang
       env: DIR=Bootloader/Builds SCRIPT=mk20dx256vlh7.bash
+    # xcode *and* brew don't support clang ARMCCompiler for arm-none-eabi, sigh useless Apple
+    # Disabling Linux clang builds until Travis has less crappy repos available
+    - compiler: clang
+      env: DIR=Keyboards SCRIPT=infinity.bash
+    - compiler: clang
+      env: DIR=Keyboards SCRIPT=infinity_led.bash
+    - compiler: clang
+      env: DIR=Keyboards SCRIPT=ergodox.bash
+    - compiler: clang
+      env: DIR=Keyboards SCRIPT=whitefox.bash
+    - compiler: clang
+      env: DIR=Keyboards/Testing SCRIPT=uartout.bash
+    - compiler: clang
+      env: DIR=Keyboards/Testing SCRIPT=usbmuxuart.bash
+    - compiler: clang
+      env: DIR=Bootloader/Builds SCRIPT=mk20dx128vlf5.bash
+    - compiler: clang
+      env: DIR=Bootloader/Builds SCRIPT=mk20dx256vlh7.bash
+
+# Package Setup
+before_install:
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew update; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]]; then brew install git python3 ctags dfu-util tree; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ "$CC" == "gcc" ]];   then brew tap Caskroom/cask; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ "$CC" == "gcc" ]];   then brew install Caskroom/cask/gcc-arm-embedded; fi
+  # This may work, but we'd have to compile llvm...
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ "$CC" == "clang" ]]; then brew tap homebrew/versions; fi
+  - if [[ "$TRAVIS_OS_NAME" == "osx" ]] && [[ "$CC" == "clang" ]]; then brew install homebrew/versions/llvm38 --with-all-targets --with-asan --with-lld --HEAD; fi
 
 # System setup
 install:
@@ -65,6 +94,16 @@ install:
   # Directory tree to validate kll.git
   - tree
 
+  # Compiler Version
+  - ${CC} --version
+
+  # Python Version
+  - python --version
+  - python3 --version
+
+  # CMake Version
+  - cmake --version
+
 # Run test script(s)
 script:
   - (cd ${DIR} && COMPILER=${CC} ./${SCRIPT})

Lib/CMake/kll.cmake

@@ -1,6 +1,6 @@
 ###| CMAKE Kiibohd Controller KLL Configurator |###
 #
-# Written by Jacob Alexander in 2014-2015 for the Kiibohd Controller
+# Written by Jacob Alexander in 2014-2016 for the Kiibohd Controller
 #
 # Released into the Public Domain
 #
@@ -17,6 +17,7 @@ if ( "${MacroModule}" STREQUAL "PartialMap" )
 ###
 # Python 3 is required for kll
 #
+set ( PYTHON_EXECUTABLE python3 ) # Required on systems where python is 2, not 3
 find_package ( PythonInterp 3 REQUIRED )