From 43b49da5529f8eaa27fb79d0e25ff87701e4762a Mon Sep 17 00:00:00 2001
From: Noel Berry <thenberry@gmail.com>
Date: Sun, 3 Jan 2021 00:10:53 -0800
Subject: [PATCH] attempting to solve SDL2 include dirs across platforms

---
 CMakeLists.txt | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index f6e8831..8c7dd9f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -70,8 +70,6 @@ target_include_directories(blah
 
 # Platform Variables
 set(SDL2_ENABLED true CACHE BOOL "Use SDL2 as the System implementation")
-set(SDL2_INCLUDE_DIRS "" CACHE FILEPATH "SDL2 Headers")
-set(SDL2_LIBRARIES "" CACHE FILEPATH "SDL2 Headers")
 set(OPENGL_ENABLED true CACHE BOOL "Use OpenGL graphics implementation")
 set(D3D11_ENABLED false CACHE BOOL "Use D3D11 graphics implementation")
 
@@ -88,9 +86,14 @@ if (D3D11_ENABLED)
 	set(LIBS ${LIBS} d3d11.lib dxguid.lib D3Dcompiler.lib)
 endif()
 
-# Link and create SDL2 Definition if we're using SDL2
+# Link and create SDL2 Definition if we're using it
 if (SDL2_ENABLED)
 	add_compile_definitions(BLAH_USE_SDL2)
+
+	if (NOT DEFINED SDL2_INCLUDE_DIRS OR NOT DEFINED SDL2_LIBRARIES)
+		find_package(SDL2 REQUIRED)
+	endif()
+	
 	target_include_directories(blah PUBLIC "$<BUILD_INTERFACE:${SDL2_INCLUDE_DIRS}>")
 	set(LIBS ${LIBS} ${SDL2_LIBRARIES})
 endif()