23bead3e3a
Since its addition in commitdaae311490, seatd fails to build with gcc < 7 because it unconditonally uses -Wimplicit-fallthrough which is only available since gcc 7.1 and81fea426daresulting in the following build failure: arm-none-linux-gnueabi-gcc: error: unrecognized command line option '-Wimplicit-fallthrough' Fixes: - http://autobuild.buildroot.org/results/0ee6816a7cceebdafd07612677a594bdf68e0790 Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
49 lines
1.5 KiB
Diff
49 lines
1.5 KiB
Diff
From 0b32c33978fbe8772df6d185c9b9d646c442dc5d Mon Sep 17 00:00:00 2001
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From: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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Date: Sun, 8 Aug 2021 19:00:35 +0200
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Subject: [PATCH] meson.build: fix build with gcc < 7
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Test if -Wimplicit-fallthrough is available before using it as it has
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been added only since gcc 7.1 and
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https://github.com/gcc-mirror/gcc/commit/81fea426da8c4687bb32e6894dc26f00ae211822
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and so it will raise the following build failure with gcc < 7:
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arm-none-linux-gnueabi-gcc: error: unrecognized command line option '-Wimplicit-fallthrough'
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Fixes:
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- http://autobuild.buildroot.org/results/0ee6816a7cceebdafd07612677a594bdf68e0790
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Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
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[Upstream status: https://github.com/kennylevinsen/seatd/pull/1]
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---
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meson.build | 6 +++++-
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1 file changed, 5 insertions(+), 1 deletion(-)
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diff --git a/meson.build b/meson.build
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index 1131b4b..c366a59 100644
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--- a/meson.build
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+++ b/meson.build
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@@ -31,7 +31,6 @@ add_project_arguments(
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'-Wold-style-definition', # nop
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'-Wpointer-arith',
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'-Wstrict-prototypes',
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- '-Wimplicit-fallthrough',
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'-Wmissing-prototypes',
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'-Wno-unknown-warning-option',
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'-Wno-unused-command-line-argument',
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@@ -45,6 +44,11 @@ add_project_arguments(
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language: 'c',
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)
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+cc = meson.get_compiler('c')
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+if cc.has_argument('-Wimplicit-fallthrough')
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+ add_project_arguments('-Wimplicit-fallthrough' , language : 'c')
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+endif
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+
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if ['debugoptimized', 'release', 'minsize'].contains(get_option('buildtype'))
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add_project_arguments('-D_FORTIFY_SOURCE=2', language: 'c')
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endif
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--
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2.30.2
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