linux4.9: really fix build w/ gcc-9.1.0

Signed-off-by: Jürgen Buchmüller <pullmoll@t-online.de>

srcpkgs/linux4.9/patches/gcc9.patch

@@ -0,0 +1,19 @@
+diff --git a/include/linux/module.h b/include/linux/module.h
+index 8fa38d3e7538..f5bc4c046461 100644
+--- a/include/linux/module.h
++++ b/include/linux/module.h
+@@ -129,13 +129,13 @@ extern void cleanup_module(void);
+ #define module_init(initfn)					\
+ 	static inline initcall_t __maybe_unused __inittest(void)		\
+ 	{ return initfn; }					\
+-	int init_module(void) __attribute__((alias(#initfn)));
++	int init_module(void) __attribute__((__copy__(initfn))) __attribute__((alias(#initfn)));
+ 
+ /* This is only required if you want to be unloadable. */
+ #define module_exit(exitfn)					\
+ 	static inline exitcall_t __maybe_unused __exittest(void)		\
+ 	{ return exitfn; }					\
+-	void cleanup_module(void) __attribute__((alias(#exitfn)));
++	void cleanup_module(void) __attribute__((__copy__(exitfn))) __attribute__((alias(#exitfn)));
+ 
+ #endif

srcpkgs/linux4.9/template

@@ -85,7 +85,6 @@ do_build() {
 	fi
 	export LDFLAGS=
 	make ARCH=$arch ${_version} ${_cross} ${makejobs} prepare
-	vsed -i Makefile -e "/KBUILD_CFLAGS *:=/s/:= /:= -Wno-error /"
 	make ARCH=$arch ${_version} ${_cross} ${makejobs} ${_args}
 }
 do_install() {