Re: [2.6 patch] add -Werror-implicit-function-declaration to CFLAGS

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Adrian Bunk <[email protected]> wrote:
>
> Currently, using an undeclared function gives a compile warning, but it 
> can lead to a link or even a runtime error.
> 
> With -Werror-implicit-function-declaration, we are getting an immediate 
> compile error instead.
> 
> This patch also removes some unneeded spaces between two tabs in the 
> following line.
> 
> 
> Signed-off-by: Adrian Bunk <[email protected]>
> 
> --- linux-2.6.13-rc3-mm3-full/Makefile.old	2005-07-30 13:55:32.000000000 +0200
> +++ linux-2.6.13-rc3-mm3-full/Makefile	2005-07-30 13:55:56.000000000 +0200
> @@ -351,7 +351,8 @@
>  CPPFLAGS        := -D__KERNEL__ $(LINUXINCLUDE)
>  
>  CFLAGS 		:= -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs \
> -	  	   -fno-strict-aliasing -fno-common \
> +		   -Werror-implicit-function-declaration \
> +		   -fno-strict-aliasing -fno-common \
>  		   -ffreestanding
>  AFLAGS		:= -D__ASSEMBLY__
>  

heh.  Nice idea, but if I merge this I'll have tons of monkey work to do
to get ppc64, ia64 and others compiling :(

umm, so what to do?  I'm inclined to just slam it in post-2.6.13 then take
a week off or something.
-
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