| Brad Bishop | 1932369 | 2019-04-05 15:28:33 -0400 | [diff] [blame] | 1 | From 37c35f94d9d95dbd2b5f8a919f5478be51453590 Mon Sep 17 00:00:00 2001 |
| Brad Bishop | d7bf8c1 | 2018-02-25 22:55:05 -0500 | [diff] [blame] | 2 | From: Khem Raj <raj.khem@gmail.com> |
| 3 | Date: Fri, 13 Oct 2017 10:27:34 -0700 |
| 4 | Subject: [PATCH] Use CC to check for implicit-fallthrough warning support |
| 5 | |
| 6 | This warning it new in gcc7 and in cross compile case |
| 7 | its possible that build host gcc is version 7+ but the |
| 8 | cross compile used for compiling mdadm is < version 7 |
| 9 | |
| 10 | Signed-off-by: Khem Raj <raj.khem@gmail.com> |
| Brad Bishop | d7bf8c1 | 2018-02-25 22:55:05 -0500 | [diff] [blame] | 11 | Upstream-Status: Pending |
| Brad Bishop | 1932369 | 2019-04-05 15:28:33 -0400 | [diff] [blame] | 12 | --- |
| Brad Bishop | d7bf8c1 | 2018-02-25 22:55:05 -0500 | [diff] [blame] | 13 | Makefile | 2 +- |
| 14 | 1 file changed, 1 insertion(+), 1 deletion(-) |
| 15 | |
| 16 | diff --git a/Makefile b/Makefile |
| Brad Bishop | 1932369 | 2019-04-05 15:28:33 -0400 | [diff] [blame] | 17 | index 46bf57b..a075912 100644 |
| Brad Bishop | d7bf8c1 | 2018-02-25 22:55:05 -0500 | [diff] [blame] | 18 | --- a/Makefile |
| 19 | +++ b/Makefile |
| Brad Bishop | 1932369 | 2019-04-05 15:28:33 -0400 | [diff] [blame] | 20 | @@ -53,7 +53,7 @@ ifdef WARN_UNUSED |
| Brad Bishop | d7bf8c1 | 2018-02-25 22:55:05 -0500 | [diff] [blame] | 21 | CWFLAGS += -Wp,-D_FORTIFY_SOURCE=2 -O3 |
| 22 | endif |
| 23 | |
| 24 | -FALLTHROUGH := $(shell gcc -v --help 2>&1 | grep "implicit-fallthrough" | wc -l) |
| 25 | +FALLTHROUGH := $(shell ${CC} -v --help 2>&1 | grep "implicit-fallthrough" | wc -l) |
| 26 | ifneq "$(FALLTHROUGH)" "0" |
| 27 | CWFLAGS += -Wimplicit-fallthrough=0 |
| 28 | endif |