Add support for building with a different Qt

CMakeLists.txt

@@ -4,6 +4,9 @@ project(nostalgia)
 
 set(NOSTALGIA_BUILD_TYPE "Native" CACHE STRING "The type of build to produce(Native/GBA)")
 set(NOSTALGIA_IDE_BUILD "ON" CACHE STRING "Build for IDE's to run")
+set(NOSTALGIA_QT_PATH "" CACHE STRING "Path to Qt Libraries")
+
+set(CMAKE_PREFIX_PATH ${NOSTALGIA_QT_PATH})
 
 list(APPEND CMAKE_MODULE_PATH ${CMAKE_SOURCE_DIR}/cmake/Modules)
 include(address_sanitizer)
@@ -22,7 +25,7 @@ endif()
 
 add_definitions(
 	-std=c++14
-	#-fdiagnostics-color
+	#-fdiagnostics-color # forces colored output when using ninja
 	-Wall
 	-Wsign-compare
 )
@@ -42,6 +45,9 @@ if(APPLE)
 	set(NOSTALGIA_DIST_MAC_APP_CONTENTS Nostalgia.app/Contents)
 else()
 	set(CMAKE_INSTALL_RPATH "$ORIGIN" "$ORIGIN/../lib/nostalgia")
+	if(NOT ${NOSTALGIA_QT_PATH} STREQUAL "")
+		set(CMAKE_INSTALL_RPATH ${CMAKE_INSTALL_RPATH} "${NOSTALGIA_QT_PATH}/lib")
+	endif()
 	set(CMAKE_BUILD_WITH_INSTALL_RPATH TRUE)
 	set(NOSTALGIA_DIST_BIN       bin)
 	set(NOSTALGIA_DIST_LIB       lib)

scripts/setup-build.ps1

@@ -21,6 +21,10 @@ if (${buildType} -eq "asan") {
 	$buildTypeArgs="-DCMAKE_BUILD_TYPE=Release"
 }
 
+if (${env:NOSTALGIA_QT_PATH} -ne "") {
+    $qtPath="-DNOSTALGIA_QT_PATH=${env:NOSTALGIA_QT_PATH}"
+}
+
 $buildDir="${project}/build/${target}-${buildType}"
 $distDir="${project}/dist/${target}-${buildType}"
 
@@ -32,6 +36,7 @@ cmake -DCMAKE_EXPORT_COMPILE_COMMANDS=ON `
       -DNOSTALGIA_IDE_BUILD=OFF `
       $buildTool `
       $buildTypeArgs `
+      $qtPath `
       $toolchain `
       $project
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