tools: better cmake

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

app/tools/CMakeLists.txt

@@ -2,8 +2,8 @@ cmake_minimum_required(VERSION 3.4.1)
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_LIBRARY_OUTPUT_DIRECTORY}")
 
 add_executable(libwg-quick.so wireguard-android-integration/wg-quick.c)
-SET_TARGET_PROPERTIES(libwg-quick.so PROPERTIES COMPILE_FLAGS "-O3 -std=gnu11 -Wall -pedantic -Wno-missing-field-initializers -DWG_CONFIG_SEARCH_PATHS=\"\\\"/data/data/com.wireguard.android/files\\\"\"")
+target_compile_options(libwg-quick.so PUBLIC -O3 -std=gnu11 -Wall -pedantic -Wno-missing-field-initializers -DWG_CONFIG_SEARCH_PATHS=\"\\\"/data/data/com.wireguard.android/files\\\"\")
 
-FILE(GLOB WG_SOURCES wireguard/src/tools/*.c libmnl/src/*.c)
+file(GLOB WG_SOURCES wireguard/src/tools/*.c libmnl/src/*.c)
 add_executable(libwg.so ${WG_SOURCES})
-SET_TARGET_PROPERTIES(libwg.so PROPERTIES COMPILE_FLAGS "'-I${CMAKE_CURRENT_SOURCE_DIR}libmnl/src/' '-I${CMAKE_CURRENT_SOURCE_DIR}/libmnl/include/' '-I${CMAKE_CURRENT_SOURCE_DIR}/wireguard/src/tools/' -O3 -std=gnu11 -D_GNU_SOURCE -DHAVE_VISIBILITY_HIDDEN -DRUNSTATEDIR=\"\\\"/data/data/com.wireguard.android/cache\\\"\" -Wno-pointer-arith -Wno-unused-parameter")
+target_compile_options(libwg.so PUBLIC "-I${CMAKE_CURRENT_SOURCE_DIR}libmnl/src/" "-I${CMAKE_CURRENT_SOURCE_DIR}/libmnl/include/" "-I${CMAKE_CURRENT_SOURCE_DIR}/wireguard/src/tools/" -O3 -std=gnu11 -D_GNU_SOURCE -DHAVE_VISIBILITY_HIDDEN -DRUNSTATEDIR=\"\\\"/data/data/com.wireguard.android/cache\\\"\" -Wno-pointer-arith -Wno-unused-parameter)