30 Oct
2023
30 Oct
'23
9:45 a.m.
On Sun, 2023-10-29 at 21:13 +0000, David Laight wrote:
From: David Woodhouse
Sent: 28 October 2023 20:35
Using -MD without -MP causes build failures when a header file is deleted or moved. With -MP, the compiler will emit phony targets for the header files it lists as dependencies, and the Makefiles won't refuse to attempt to rebuild a C unit which no longer includes the deleted header.
Won't a phony target stop a header being built if there is an actual rule to build it?
It probably would have taken you about the same time to find the answer for yourself, as it took to write that email. Why don't you try it?