37 lines
1.0 KiB
Diff
37 lines
1.0 KiB
Diff
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From 8268821b434d1308d083454fb681d80176cf352b Mon Sep 17 00:00:00 2001
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From: Xiao Ni <xni@redhat.com>
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Date: Fri, 17 Mar 2017 19:55:42 +0800
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Subject: [PATCH] mdadm: Add Wimplicit-fallthrough=0 in Makefile
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There are many errors like 'error: this statement may fall through'.
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But the logic is right. So add the flag Wimplicit-fallthrough=0
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to disable the error messages. The method I use is from
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https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html
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#index-Wimplicit-fallthrough-375
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Signed-off-by: Xiao Ni <xni@redhat.com>
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Signed-off-by: Jes Sorensen <Jes.Sorensen@gmail.com>
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---
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Makefile | 5 +++++
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1 file changed, 5 insertions(+)
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diff --git a/Makefile b/Makefile
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index a6f464c..d1a6ac4 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -48,6 +48,11 @@ ifdef WARN_UNUSED
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CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3
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endif
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+FALLTHROUGH := $(shell gcc -v --help 2>&1 | grep "implicit-fallthrough" | wc -l)
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+ifneq "$(FALLTHROUGH)" "0"
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+CWFLAGS += -Wimplicit-fallthrough=0
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+endif
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+
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ifdef DEBIAN
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CPPFLAGS += -DDEBIAN
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endif
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--
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2.10.2
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