[dpdk-dev] [PATCH v3 7/7] build: fix linker warnings with Clang on Windows
Dmitry Kozlyuk
dmitry.kozliuk at gmail.com
Tue Feb 18 01:02:29 CET 2020
Clang on Windows doesn't use pthread for now, while MinGW does. Removing
`-pthread` option with MS linker fixes the following warning:
clang: warning: argument unused during compilation: '-pthread' [-Wunused-command-line-argument]
Option `--no-as-needed` is meaningless for PE output. Disabling it on
Windows fixes the following warning:
LINK : warning LNK4044: unrecognized option '/-no-as-needed'; ignored
Fixes: 98edcbb5a ("eal/windows: introduce Windows support")
Signed-off-by: Dmitry Kozlyuk <dmitry.kozliuk at gmail.com>
---
config/meson.build | 12 ++++++++----
1 file changed, 8 insertions(+), 4 deletions(-)
diff --git a/config/meson.build b/config/meson.build
index 61eeec0de..69e53e41d 100644
--- a/config/meson.build
+++ b/config/meson.build
@@ -112,11 +112,15 @@ dpdk_conf.set('RTE_TOOLCHAIN_' + toolchain.to_upper(), 1)
dpdk_conf.set('RTE_ARCH_64', cc.sizeof('void *') == 8)
-add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
+if not is_windows
+ add_project_link_arguments('-Wl,--no-as-needed', language: 'c')
+endif
-# use pthreads
-add_project_link_arguments('-pthread', language: 'c')
-dpdk_extra_ldflags += '-pthread'
+# use pthreads if available for the platform
+if not is_ms_linker
+ add_project_link_arguments('-pthread', language: 'c')
+ dpdk_extra_ldflags += '-pthread'
+endif
# on some OS, maths functions are in a separate library
if cc.find_library('m', required : false).found()
--
2.25.0
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