kumquat-buildroot/package/libcorrect/0001-CMakeLists.txt-conditionally-use-Wpedantic.patch
Joel Carlson abbf2f4e5d libcorrect: add package
Adds the libcorrect package. Libcorrect by default builds a shared
library, so require shared libraries. We add a patch to make sure
-Wpedantic is only used if supported by the C compiler (gcc < 4.8
didn't support it).

Signed-off-by: Joel Carlson <JoelsonCarl@gmail.com>
[Thomas: add a patch to use -Wpedantic only if available, instead of
depending on gcc >= 4.8.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
2018-10-10 10:43:34 +02:00

43 lines
1.4 KiB
Diff

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