build: disable Windows warnings for insecure funtions

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>
Acked-by: Dmitry Kozlyuk <dmitry.kozliuk@gmail.com>
Acked-by: Pallavi Kadam <pallavi.kadam@intel.com>

diff --git a/config/meson.build b/config/meson.build
index c02802c..a3154e2 100644 (file)
--- 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