diff --git a/neo/CMakeLists.txt b/neo/CMakeLists.txt
index 8dbb10e9..5be74cd4 100644
--- a/neo/CMakeLists.txt
+++ b/neo/CMakeLists.txt
@@ -350,6 +350,16 @@ if(USE_VULKAN)
 
 	# RB: moved this above the general Vulkan part so glslang does not include Vulkan SDK headers
 	# which causes all kinds of weird segmentation faults because struct sizes don't match
+ 
+    # SRS - Set default VULKAN_SDK location if environment variable not defined on OSX
+    if(${CMAKE_SYSTEM_NAME} MATCHES "Darwin" AND NOT DEFINED ENV{VULKAN_SDK})
+        if(NOT USE_MoltenVK)
+            # SRS - Vulkan SDK installer copies standard vulkan headers and libs to /usr/local on OSX
+            set(ENV{VULKAN_SDK} /usr/local)
+        else()
+            message(FATAL_ERROR "Must define VULKAN_SDK location if USE_MoltenVK option enabled!")
+        endif()
+    endif()
 
 	if(SPIRV_SHADERC)
 		add_definitions(-DSPIRV_SHADERC)
diff --git a/neo/cmake-xcode-vulkan-debug.sh b/neo/cmake-xcode-vulkan-debug.sh
index dc00933c..9ea2307b 100755
--- a/neo/cmake-xcode-vulkan-debug.sh
+++ b/neo/cmake-xcode-vulkan-debug.sh
@@ -2,4 +2,4 @@ cd ..
 rm -rf xcode-vulkan-debug
 mkdir xcode-vulkan-debug
 cd xcode-vulkan-debug
-cmake -G Xcode -DCMAKE_BUILD_TYPE=Debug -DSDL2=ON -DUSE_VULKAN=ON -DSPIRV_SHADERC=OFF -DOPENAL_LIBRARY=/usr/local/opt/openal-soft/lib/libopenal.dylib -DOPENAL_INCLUDE_DIR=/usr/local/opt/openal-soft/include ../neo -Wno-dev
+cmake -G Xcode -DCMAKE_SUPPRESS_REGENERATION=ON -DCMAKE_BUILD_TYPE=Debug -DSDL2=ON -DUSE_VULKAN=ON -DSPIRV_SHADERC=OFF -DOPENAL_LIBRARY=/usr/local/opt/openal-soft/lib/libopenal.dylib -DOPENAL_INCLUDE_DIR=/usr/local/opt/openal-soft/include ../neo -Wno-dev
diff --git a/neo/cmake-xcode-vulkan-release.sh b/neo/cmake-xcode-vulkan-release.sh
index 907a6880..80937a7c 100755
--- a/neo/cmake-xcode-vulkan-release.sh
+++ b/neo/cmake-xcode-vulkan-release.sh
@@ -2,4 +2,4 @@ cd ..
 rm -rf xcode-vulkan-release
 mkdir xcode-vulkan-release
 cd xcode-vulkan-release
-cmake -G Xcode -DCMAKE_BUILD_TYPE=Release -DCMAKE_OSX_DEPLOYMENT_TARGET=10.12 -DSDL2=ON -DUSE_VULKAN=ON -DSPIRV_SHADERC=OFF -DUSE_MoltenVK=ON -DOPENAL_LIBRARY=/usr/local/opt/openal-soft/lib/libopenal.dylib -DOPENAL_INCLUDE_DIR=/usr/local/opt/openal-soft/include ../neo -Wno-dev
+cmake -G Xcode -DCMAKE_SUPPRESS_REGENERATION=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_OSX_DEPLOYMENT_TARGET=10.12 -DSDL2=ON -DUSE_VULKAN=ON -DSPIRV_SHADERC=OFF -DUSE_MoltenVK=ON -DOPENAL_LIBRARY=/usr/local/opt/openal-soft/lib/libopenal.dylib -DOPENAL_INCLUDE_DIR=/usr/local/opt/openal-soft/include ../neo -Wno-dev