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cmake/gcc: disable [-Werror=maybe-uninitialized] for GCC >= 12.1.0 

With GCC 12.1.0 there are numerous false-positive warnings on
"maybe uninitialized" variables.
This commit is contained in:
Robert Falkenberg 2022-05-17 15:10:41 +02:00
parent 0c9ba5b87e
commit 21a4a675dd
1 changed files with 6 additions and 0 deletions
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6
CMakeLists.txt
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@ -540,6 +540,12 @@ if(NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 5.0)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror")
endif()
# GCC >= 12.1.0: Disable analysis on "maybe-uninitialized" variables because of the high false-positive rate
if(CMAKE_COMPILER_IS_GNUCXX AND NOT CMAKE_CXX_COMPILER_VERSION VERSION_LESS 12.1)
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-maybe-uninitialized")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-maybe-uninitialized")
endif()
if(CMAKE_C_COMPILER_ID MATCHES "GNU")
# Increase inlining limit to allow gcc compilation on e.g. RPi2
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --param large-function-growth=1600")