Made soil be findable on unix

CMakeLists.txt

@@ -4,10 +4,30 @@ project(GraphicsProject4 VERSION 0.0.1 LANGUAGES CXX)
 
 find_package (OpenGL REQUIRED)
 find_package(GLEW REQUIRED)
-find_package(SOIL CONFIG REQUIRED)
+#find_package(SOIL CONFIG REQUIRED)
 find_package(glfw3 REQUIRED)
 find_package(glm REQUIRED)
 
+IF (SOIL_INCLUDE_DIR)
+  # Already in cache, be silent
+  SET(SOIL_FIND_QUIETLY TRUE)
+ENDIF (SOIL_INCLUDE_DIR)
+
+FIND_PATH(SOIL_INCLUDE_DIR SOIL.h PATH_SUFFIXES include/SOIL include)
+
+SET(SOIL_NAMES SOIL Soil soil)
+FIND_LIBRARY(SOIL_LIBRARY NAMES ${SOIL_NAMES} )
+MARK_AS_ADVANCED( SOIL_LIBRARY SOIL_INCLUDE_DIR )
+
+# Per-recommendation
+SET(SOIL_INCLUDE_DIRS "${SOIL_INCLUDE_DIR}")
+SET(SOIL_LIBRARIES    "${SOIL_LIBRARY}")
+
+# handle the QUIETLY and REQUIRED arguments and set SOIL_FOUND to TRUE if
+# all listed variables are TRUE
+INCLUDE(FindPackageHandleStandardArgs)
+FIND_PACKAGE_HANDLE_STANDARD_ARGS(SOIL DEFAULT_MSG SOIL_LIBRARIES SOIL_INCLUDE_DIRS)
+
 add_executable(main 
 
 src/TerrainFPS.cpp
@@ -19,7 +39,7 @@ target_link_libraries(main PRIVATE ${OPENGL_LIBRARIES})
 target_include_directories(main PRIVATE GLEW)
 target_link_libraries(main PRIVATE GLEW::GLEW)
 
-target_link_libraries(main PRIVATE SOIL)
+target_link_libraries(main PRIVATE ${SOIL_LIBRARY})
 
 target_link_libraries(main PUBLIC glm)
 
@@ -30,4 +50,4 @@ target_include_directories(main PRIVATE ${CMAKE_SOURCE_DIR}/src)
 
 add_custom_command(TARGET main POST_BUILD
 	COMMAND ${CMAKE_COMMAND} -E copy_directory
-		${PROJECT_SOURCE_DIR}/Resources $<TARGET_FILE_DIR:main>)
+		${PROJECT_SOURCE_DIR}/Resources $<TARGET_FILE_DIR:main>)