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Reduce some false-positive warnings from GCC to warnings with -Werror

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This also works around some of the same warnings. These are known bugs
in GCC 11+ and GCC 13.x.
This commit is contained in:
Tim Wojtulewicz 2025-06-05 15:36:38 -07:00
parent cd356ce45d
commit 57a3c733d1
6 changed files with 30 additions and 22 deletions
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16
CMakeLists.txt
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@ -192,7 +192,7 @@ if (MSVC)
# TODO: This is disabled for now because there a bunch of known
# compiler warnings on Windows that we don't have good fixes for.
#set(WERROR_FLAG "/WX")
#set(WERROR_FLAG "/WX")
#set(WNOERROR_FLAG "/WX:NO")
endif ()
# Always build binpac in static mode if building on Windows
@ -202,6 +202,20 @@ else ()
include(GNUInstallDirs)
if (BUILD_WITH_WERROR)
set(WERROR_FLAG "-Werror")
set(WNOERROR_FLAG "-Wno-error")
# With versions >=13.0 GCC gained `-Warray-bounds` which reports false
# positives, see e.g., https://gcc.gnu.org/bugzilla/show_bug.cgi?id=111273.
if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 13.0)
list(APPEND WERROR_FLAG "-Wno-error=array-bounds")
endif ()
# With versions >=11.0 GCC is returning false positives for -Wrestrict. See
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100366. It's more prevalent
# building with -std=c++20.
if (CMAKE_COMPILER_IS_GNUCXX AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER_EQUAL 11.0)
list(APPEND WERROR_FLAG "-Wno-error=restrict")
endif ()
endif ()
endif ()