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Only pass -Wformat-signedness to versions of GCC that support it.

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Fixes #3478

Signed-off-by: okhowang(王沛文) <okhowang@tencent.com>
This commit is contained in:
okhowang(王沛文) 2020-07-03 11:41:38 +08:00
parent 527b87890d
commit 0cd8e0f6a7
2 changed files with 7 additions and 1 deletions
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5
CMakeLists.txt
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@ -165,7 +165,10 @@ if(CMAKE_COMPILER_IS_GNU)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wlogical-op")
endif()
if (GCC_VERSION VERSION_GREATER 4.8 OR GCC_VERSION VERSION_EQUAL 4.8)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow -Wformat-signedness")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wshadow")
endif()
if (GCC_VERSION VERSION_GREATER 5.0)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wformat-signedness")
endif()
set(CMAKE_C_FLAGS_RELEASE "-O2")
set(CMAKE_C_FLAGS_DEBUG "-O0 -g3")

3
ChangeLog.d/format-signedness.txt Normal file
View File

@ -0,0 +1,3 @@
Changes
* Only pass -Wformat-signedness to versions of GCC that support it. Reported
in #3478 and fix contributed in #3479 by okhowang.