Fixed bug 5100 - compilation CMake Android armeabi-v7a (Thanks Steve Robinson!)

fatal error: 'cpu-features.h' file not found on CMake Android armeabi-v7a

CMakeLists.txt

@@ -945,7 +945,7 @@ endif()
 # Platform-specific options and settings
 if(ANDROID)
   file(GLOB ANDROID_CORE_SOURCES ${SDL2_SOURCE_DIR}/src/core/android/*.c)
-  set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_CORE_SOURCES})
+  set(SOURCE_FILES ${SOURCE_FILES} ${ANDROID_CORE_SOURCES} ${ANDROID_NDK}/sources/android/cpufeatures/cpu-features.c)
 
   # SDL_spinlock.c Needs to be compiled in ARM mode.
   # There seems to be no better way currently to set the ARM mode.
@@ -2136,7 +2136,9 @@ if(SDL_SHARED)
   set(_INSTALL_LIBS "SDL2" ${_INSTALL_LIBS})
   target_link_libraries(SDL2 ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
   target_include_directories(SDL2 PUBLIC "$<BUILD_INTERFACE:${SDL2_SOURCE_DIR}/include>" $<INSTALL_INTERFACE:include> $<INSTALL_INTERFACE:include/SDL2>)
-  if (NOT ANDROID)
+  if(ANDROID)
+    target_include_directories(SDL2 PRIVATE ${ANDROID_NDK}/sources/android/cpufeatures)
+  else()
     set_target_properties(SDL2 PROPERTIES DEBUG_POSTFIX "${SDL_CMAKE_DEBUG_POSTFIX}")
   endif()
   if(IOS OR TVOS)
@@ -2182,7 +2184,9 @@ if(SDL_STATIC)
   set(_INSTALL_LIBS "SDL2-static" ${_INSTALL_LIBS})
   target_link_libraries(SDL2-static ${EXTRA_LIBS} ${EXTRA_LDFLAGS})
   target_include_directories(SDL2-static PUBLIC "$<BUILD_INTERFACE:${SDL2_SOURCE_DIR}/include>" $<INSTALL_INTERFACE:include> $<INSTALL_INTERFACE:include/SDL2>)
-  if (NOT ANDROID)
+  if(ANDROID)
+    target_include_directories(SDL2-static PRIVATE ${ANDROID_NDK}/sources/android/cpufeatures)
+  else()
     set_target_properties(SDL2-static PROPERTIES DEBUG_POSTFIX "${SDL_CMAKE_DEBUG_POSTFIX}")
   endif()
   if(IOS OR TVOS)