The new rules have already caught a couple of issues.
MAINTAINER_COMPILER_FLAGS="$MAINTAINER_COMPILER_FLAGS
-Wall -Wcast-align -Wuninitialized
-Wno-strict-aliasing -Wempty-body -Wformat
- -Wformat-security -Winit-self
+ -Wformat-security -Wformat-nonliteral -Winit-self
-Wdeclaration-after-statement -Wvla
- -Wpointer-arith"
+ -Wpointer-arith -Wmissing-declarations
+ -Waggregate-returns -Wcast-align
+ -Wredundant-decls"
AS_CASE([$enable_maintainer_flags],
[yes],