43 lines
1.4 KiB
Diff
43 lines
1.4 KiB
Diff
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From 8fc28b4c4c01581b25220fdbc1eeda196e399256 Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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Date: Wed, 10 Oct 2018 09:28:00 +0200
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Subject: [PATCH] CMakeLists.txt: conditionally use -Wpedantic
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-Wpedantic is only provided by gcc >= 4.8. Since showing pedantic
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warnings is not really mandatory, let's only use this option when the
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compiler supports it.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
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Upstream: https://github.com/quiet/libcorrect/pull/25
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---
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CMakeLists.txt | 7 ++++++-
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1 file changed, 6 insertions(+), 1 deletion(-)
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diff --git a/CMakeLists.txt b/CMakeLists.txt
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index 193f311..e570198 100644
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--- a/CMakeLists.txt
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+++ b/CMakeLists.txt
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@@ -3,13 +3,18 @@ project(Correct C)
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include(CheckLibraryExists)
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include(CheckIncludeFiles)
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include(CheckCSourceCompiles)
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+include(CheckCCompilerFlag)
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if(MSVC)
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set(LIBM "")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} /W4")
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else(MSVC)
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set(LIBM "m")
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-set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -std=c99 -Wpedantic -Wall")
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+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fPIC -std=c99 -Wall")
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+check_c_compiler_flag(-Wpedantic COMPILER_SUPPORTS_WPEDANTIC)
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+if(COMPILER_SUPPORTS_WPEDANTIC)
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+set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wpedantic")
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+endif()
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if(CMAKE_BUILD_TYPE STREQUAL "Debug")
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -g3 -O0 -fsanitize=address")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-no_pie,")
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--
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2.14.4
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