diff --git a/CMakeLists.txt b/CMakeLists.txt
index 56bff255..c1296e35 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,8 @@ set(LIBS_BINARY_DIR ${PROJECT_BINARY_DIR}/libs)
 set(LIBS_DOWNLOAD_DIR ${PROJECT_BINARY_DIR}/downloads/pgk)
 set(LIBS_DOWNLOAD_SRC_DIR ${PROJECT_BINARY_DIR}/downloads/src)
 
-if (UNIX)
+# keep this check in sync with the external libs build commands
+if (UNIX AND (BUNDLED_OGG_VORBIS OR BUNDLED_OPENAL OR BUNDLED_LUA))
 	find_program(MAKE NAMES gmake make mingw32-make REQUIRED)
 endif()
 
diff --git a/glew/CMakeLists.txt b/glew/CMakeLists.txt
index f84c6871..6f46a61d 100644
--- a/glew/CMakeLists.txt
+++ b/glew/CMakeLists.txt
@@ -3,17 +3,6 @@ cmake_minimum_required(VERSION 3.10.3)
 
 #project(glew)
 
-if(MINGW OR UNIX)
-  	set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-attributes")
-
-	# this is required for bundled 64bit glew lib
-	# http://stackoverflow.com/questions/7216244/why-is-fpic-absolutely-necessary-on-64-and-not-on-32bit-platforms
-	# note: -mcmodel=large might be an option to set too
-	if(NOT CROSS_COMPILE32)
-		set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
-	endif(NOT CROSS_COMPILE32)
-endif()
-
 set(GLEW_SOURCE_DIR ${CMAKE_CURRENT_LIST_DIR})
 source_group(API FILES ${API})
 
@@ -27,6 +16,17 @@ target_include_directories(bundled_glew PUBLIC ${GLEW_SOURCE_DIR}/include)
 target_compile_definitions(bundled_glew PUBLIC GLEW_STATIC)
 set_target_properties(bundled_glew PROPERTIES LINKER_LANGUAGE C)
 
+if(MINGW OR UNIX)
+	target_compile_options(bundled_glew PRIVATE "-Wno-attributes")
+
+	# this is required for bundled 64bit glew lib
+	# http://stackoverflow.com/questions/7216244/why-is-fpic-absolutely-necessary-on-64-and-not-on-32bit-platforms
+	# note: -mcmodel=large might be an option to set too
+	if(CMAKE_SIZEOF_VOID_P EQUAL 8)
+		set_target_properties(bundled_glew PROPERTIES POSITION_INDEPENDENT_CODE ON)
+	endif()
+endif()
+
 #install(TARGETS glew
 #	LIBRARY DESTINATION "${GLEW_SOURCE_DIR}/lib/"
 #	ARCHIVE DESTINATION "${GLEW_SOURCE_DIR}/lib/"
diff --git a/sqlite3/CMakeLists.txt b/sqlite3/CMakeLists.txt
index d6fc7f52..f041d023 100644
--- a/sqlite3/CMakeLists.txt
+++ b/sqlite3/CMakeLists.txt
@@ -67,8 +67,8 @@ if(MINGW OR UNIX)
 	# http://stackoverflow.com/questions/7216244/why-is-fpic-absolutely-necessary-on-64-and-not-on-32bit-platforms
 	if(NOT CROSS_COMPILE32)
 		# set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC")
-		# target_compile_options(sqlite_int INTERFACE "-fPIC")
-		set_target_properties(sqlite_int PROPERTIES POSITION_INDEPENDENT_CODE ON)
+		target_compile_options(sqlite_int INTERFACE "-fPIC")
+		# set_target_properties(sqlite_int PROPERTIES POSITION_INDEPENDENT_CODE ON)
 	endif(NOT CROSS_COMPILE32)
 endif()
 
@@ -110,7 +110,7 @@ endif()
 if (SQLITE_BUILD_STATIC)
 	# build static library
 	add_library(${SQLITE_STATIC_NAME} STATIC ${SRC_LIB_FILE})
-	target_link_libraries(${SQLITE_STATIC_NAME} PUBLIC sqlite_int)
+	target_link_libraries(${SQLITE_STATIC_NAME} PRIVATE sqlite_int)
 endif()
 
 if (SQLITE_BUILD_SHARED)
@@ -120,7 +120,7 @@ if (SQLITE_BUILD_SHARED)
 		#then we do dll library, so need to export api
 		set_target_properties(${SQLITE_DYN_NAME} PROPERTIES DEFINE_SYMBOL "SQLITE_API=__declspec(dllexport)")
 	endif()
-	target_link_libraries(${SQLITE_DYN_NAME} PUBLIC sqlite_int)
+	target_link_libraries(${SQLITE_DYN_NAME} PRIVATE sqlite_int)
 endif()
 
 #install(TARGETS ${TO_INSTALL}