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From: Nick Connolly <nick.connolly@mayadata.io>
To: Bruce Richardson <bruce.richardson@intel.com>
Cc: dev@dpdk.org, David Marchand <david.marchand@redhat.com>,
	Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>,
	Nick Connolly <nick.connolly@mayadata.io>
Subject: [dpdk-dev] [PATCH v2] windows: build warnings with clang
Date: Sun, 29 Nov 2020 16:00:24 +0000
Message-ID: <20201129160024.879-1-nick.connolly@mayadata.io> (raw)
In-Reply-To: <20201127113623.26707-1-nick.connolly@mayadata.io>

Microsoft CRT defines Windows-specific secure alternatives to
standard library functions and triggers warnings when "insecure"
functions are used [1]. However, calling code already has all
necessary checks around those functions, so these warnings are not
useful for DPDK. MinGW provides its own CRT without this issue.

[1]:
https://docs.microsoft.com/en-us/cpp/c-runtime-library/security-features-in-the-crt?view=msvc-160

Disable this by defining -D_CRT_SECURE_NO_WARNINGS.

Signed-off-by: Nick Connolly <nick.connolly@mayadata.io>
---
v2:
* Adjust commit wording as per Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>

Note: It is unclear exactly which commit this fixes.  It is probably a
consequence of building more libraries for Windows.

 config/meson.build | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/config/meson.build b/config/meson.build
index c02802c18..a3154e29c 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -279,6 +279,11 @@ if is_windows
 		add_project_arguments('-D__USE_MINGW_ANSI_STDIO', language: 'c')
 	endif
 
+	# Disable secure CRT deprecated warnings for clang
+	if cc.get_id() == 'clang'
+		add_project_arguments('-D_CRT_SECURE_NO_WARNINGS', language: 'c')
+	endif
+
 	add_project_link_arguments('-lws2_32', language: 'c')
 
 	# Contrary to docs, VirtualAlloc2() is exported by mincore.lib
-- 
2.25.1


  parent reply	other threads:[~2020-11-29 16:00 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-27 11:36 [dpdk-dev] [PATCH] " Nick Connolly
2020-11-29 15:38 ` Dmitry Kozlyuk
2020-11-29 16:00 ` Nick Connolly [this message]
2020-12-03  0:02   ` [dpdk-dev] [PATCH v2] " Dmitry Kozlyuk
2020-12-07 20:34     ` Thomas Monjalon
2020-12-09  9:30       ` Nick Connolly
2020-12-05  0:46   ` Kadam, Pallavi

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