From 654e893436649ca6a876b0bd0f30b4357edc4462 Mon Sep 17 00:00:00 2001 From: Conor Walsh Date: Thu, 19 Nov 2020 10:16:59 +0000 Subject: [PATCH 1/1] build: fix gcc warning requiring Wformat On some CentOS/RHEL systems using gcc 8.3.1 to compile dpdk, gcc shows a warning on every build step saying that -Wformat-nonliteral and -Wformat-security warnings will be ignored unless -Wformat is also specified as a compiler flag. When the build is run with -werror the build will fail due to these warnings. Exact warning returned: cc1: error: -Wformat-nonliteral ignored without -Wformat [-Werror=format-nonliteral] cc1: error: -Wformat-security ignored without -Wformat [-Werror=format-security] cc1: all warnings being treated as errors This patch adds the -Wformat flag to config/meson.build. The warning id 181 has also been suppressed in icc as icc was showing false positives with -Wformat enabled. Fixes: 524a0d5d66b9 ("build: enable extra warnings with meson") Cc: stable@dpdk.org Signed-off-by: Conor Walsh Tested-by: Lingli Chen --- config/meson.build | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/config/meson.build b/config/meson.build index a29693b883..c02802c18e 100644 --- a/config/meson.build +++ b/config/meson.build @@ -194,6 +194,7 @@ warning_flags = [ # additional warnings in alphabetical order '-Wcast-qual', '-Wdeprecated', + '-Wformat', '-Wformat-nonliteral', '-Wformat-security', '-Wmissing-declarations', @@ -220,7 +221,7 @@ if not dpdk_conf.get('RTE_ARCH_64') warning_flags += '-Wno-pointer-to-int-cast' endif if cc.get_id() == 'intel' - warning_ids = [188, 2203, 2279, 2557, 3179, 3656] + warning_ids = [181, 188, 2203, 2279, 2557, 3179, 3656] foreach i:warning_ids warning_flags += '-diag-disable=@0@'.format(i) endforeach -- 2.20.1