Re: [kvm-unit-tests PATCH] Makefile: do not pass non-c++ warning options to g++

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On 10/09/19 01:28, Haozhong Zhang wrote:
> From: Haozhong Zhang <hzhongzhang@xxxxxxxxxxx>
> 
> -Wmissing-prototypes and -Wstrict-prototypes are C and Obj-C only
> warning options. If passing them to g++ (e.g., when compiling api/),
> following warning messages will be produced:
>   cc1plus: warning: command line option ‘-Wmissing-prototypes’ is valid for C/ObjC but not for C++[enabled by default]
>   cc1plus: warning: command line option ‘-Wstrict-prototypes’ is valid for C/ObjC but not for C++ [enabled by default]
> 
> Move those options from COMMON_CFLAGS to CFLAGS so as to mute above
> warning messages.
> 
> Signed-off-by: Haozhong Zhang <hzhongzhang@xxxxxxxxxxx>
> ---
>  Makefile | 3 +--
>  1 file changed, 1 insertion(+), 2 deletions(-)
> 
> diff --git a/Makefile b/Makefile
> index 643af05..32414dc 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1,4 +1,3 @@
> -
>  SHELL := /usr/bin/env bash
>  
>  ifeq ($(wildcard config.mak),)
> @@ -53,7 +52,6 @@ cc-option = $(shell if $(CC) $(1) -S -o /dev/null -xc /dev/null \
>  COMMON_CFLAGS += -g $(autodepend-flags)
>  COMMON_CFLAGS += -Wall -Wwrite-strings -Wclobbered -Wempty-body -Wuninitialized
>  COMMON_CFLAGS += -Wignored-qualifiers -Wunused-but-set-parameter
> -COMMON_CFLAGS += -Wmissing-prototypes -Wstrict-prototypes
>  COMMON_CFLAGS += -Werror
>  frame-pointer-flag=-f$(if $(KEEP_FRAME_POINTER),no-,)omit-frame-pointer
>  fomit_frame_pointer := $(call cc-option, $(frame-pointer-flag), "")
> @@ -71,6 +69,7 @@ COMMON_CFLAGS += $(fno_pic) $(no_pie)
>  
>  CFLAGS += $(COMMON_CFLAGS)
>  CFLAGS += -Wmissing-parameter-type -Wold-style-declaration -Woverride-init
> +CFLAGS += -Wmissing-prototypes -Wstrict-prototypes
>  
>  CXXFLAGS += $(COMMON_CFLAGS)
>  
> 

Queued, thanks.

Paolo



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