[Buildroot] [git commit] package/seatd: fix build with gcc < 7
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Date: 2021-08-08 20:29:41
Subsystem:
the rest · Maintainer:
Linus Torvalds
commit: https://git.buildroot.net/buildroot/commit/?id=23bead3e3aa68d96be0b485e7b91c96eaab56b67 branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/master Since its addition in commit daae31149017cbf8b03634cfc56da132f7e1ad83, seatd fails to build with gcc < 7 because it unconditonally uses -Wimplicit-fallthrough which is only available since gcc 7.1 and https://github.com/gcc-mirror/gcc/commit/81fea426da8c4687bb32e6894dc26f00ae211822 resulting 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 <redacted> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com> --- .../0003-meson.build-fix-build-with-gcc-7.patch | 48 ++++++++++++++++++++++ 1 file changed, 48 insertions(+)
diff --git a/package/seatd/0003-meson.build-fix-build-with-gcc-7.patch b/package/seatd/0003-meson.build-fix-build-with-gcc-7.patch
new file mode 100644
index 0000000000..0e9f437cc3
--- /dev/null
+++ b/package/seatd/0003-meson.build-fix-build-with-gcc-7.patch@@ -0,0 +1,48 @@ +From 0b32c33978fbe8772df6d185c9b9d646c442dc5d Mon Sep 17 00:00:00 2001 +From: Fabrice Fontaine <fontaine.fabrice@gmail.com> +Date: Sun, 8 Aug 2021 19:00:35 +0200 +Subject: [PATCH] meson.build: fix build with gcc < 7 + +Test if -Wimplicit-fallthrough is available before using it as it has +been added only since gcc 7.1 and +https://github.com/gcc-mirror/gcc/commit/81fea426da8c4687bb32e6894dc26f00ae211822 +and so it will raise the following build failure with gcc < 7: + +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> +[Upstream status: https://github.com/kennylevinsen/seatd/pull/1] +--- + meson.build | 6 +++++- + 1 file changed, 5 insertions(+), 1 deletion(-) + +diff --git a/meson.build b/meson.build +index 1131b4b..c366a59 100644 +--- a/meson.build ++++ b/meson.build +@@ -31,7 +31,6 @@ add_project_arguments( + '-Wold-style-definition', # nop + '-Wpointer-arith', + '-Wstrict-prototypes', +- '-Wimplicit-fallthrough', + '-Wmissing-prototypes', + '-Wno-unknown-warning-option', + '-Wno-unused-command-line-argument', +@@ -45,6 +44,11 @@ add_project_arguments( + language: 'c', + ) + ++cc = meson.get_compiler('c') ++if cc.has_argument('-Wimplicit-fallthrough') ++ add_project_arguments('-Wimplicit-fallthrough' , language : 'c') ++endif ++ + if ['debugoptimized', 'release', 'minsize'].contains(get_option('buildtype')) + add_project_arguments('-D_FORTIFY_SOURCE=2', language: 'c') + endif +-- +2.30.2 +
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