[build] Link atomic on armv7 platforms

CMakeLists.txt

@@ -526,6 +526,10 @@ if (FORCE_CXX_STANDARD)
 	endif()
 endif()
 
+if (${CMAKE_SYSTEM_PROCESSOR} MATCHES "armv7l")
+	set(WITH_EXTRALIBS "${WITH_EXTRALIBS} -latomic")
+endif()
+
 # add extra warning flags for gccish compilers
 if (HAVE_COMPILER_GNU_COMPAT)
 	set (SRT_GCC_WARN "-Wall -Wextra")
@@ -867,8 +871,6 @@ if (srt_libspec_shared)
 		target_link_libraries(${TARGET_srt}_shared PRIVATE wsock32.lib ws2_32.lib)
 	elseif (APPLE)
 		set_property(TARGET ${TARGET_srt}_shared PROPERTY MACOSX_RPATH ON)
-	elseif (ANDROID)
-		target_link_libraries(${TARGET_srt}_shared PRIVATE atomic)
 	endif()
 	if (USE_GNUSTL)
 		target_link_libraries(${TARGET_srt}_shared PRIVATE ${GNUSTL_LIBRARIES} ${GNUSTL_LDFLAGS})
@@ -903,8 +905,6 @@ if (srt_libspec_static)
 		endif()
 	elseif (MINGW)
 		target_link_libraries(${TARGET_srt}_static PRIVATE wsock32 ws2_32)
-	elseif (ANDROID)
-		target_link_libraries(${TARGET_srt}_static PUBLIC atomic)
 	endif()
 	if (USE_GNUSTL)
 		target_link_libraries(${TARGET_srt}_static PRIVATE ${GNUSTL_LIBRARIES} ${GNUSTL_LDFLAGS})