mirror of
https://github.com/OrcaSlicer/OrcaSlicer.git
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build: enable -Werror with a documented exception list (#15660)
This commit is contained in:
Kris Austin
143
CMakeLists.txt
143
CMakeLists.txt
@@ -557,59 +557,101 @@ if ((NOT MSVC OR IS_CLANG_CL) AND ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR
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elseif (NOT MINGW)
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elseif (NOT MINGW)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall" )
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall" )
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endif ()
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endif ()
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-reorder" )
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# On GCC and Clang, no return from a non-void function is a warning only. Here, we make it an error.
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# Every warning is an error unless it appears in one of the two lists below.
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add_compile_options(-Werror=return-type)
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# disabled - never wanted. Off everywhere, so it never warns or errors.
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# demoted - wanted, not cleared yet. Still warns, does not error.
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# Since some portions of code are just commented out or put under conditional compilation, there are
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# Disabled.
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# a bunch of warning related to unused functions and variables. Suppress those warnings to not pollute
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set(warnings_disabled
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# compilers diagnostics output with warnings we not going to look at
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reorder # members initialised in an order we chose
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add_compile_options(-Wno-unused-function -Wno-unused-variable -Wno-unused-but-set-variable -Wno-unused-label -Wno-unused-local-typedefs)
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sign-compare # signed/unsigned comparisons throughout
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misleading-indentation # false positives on mixed tabs and spaces
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switch # unhandled enum value in a switch
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unused-function # commented-out or conditionally compiled code
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unused-variable # commented-out or conditionally compiled code
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unused-but-set-variable # commented-out or conditionally compiled code
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unused-label # commented-out or conditionally compiled code
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unused-local-typedefs # commented-out or conditionally compiled code
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)
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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list(APPEND warnings_disabled deprecated-declarations) # legacy OpenGL calls
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endif ()
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang" OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 6.0)
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list(APPEND warnings_disabled ignored-attributes) # from Eigen headers marked SYSTEM
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endif ()
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if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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list(APPEND warnings_disabled unknown-pragmas) # igl pragmas, GCC bug 66943
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endif ()
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foreach (w IN LISTS warnings_disabled)
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add_compile_options(-Wno-${w})
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endforeach ()
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# Ignore signed/unsigned comparison warnings
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# Turn everything else into an error. Dependency headers are exempt because the SYSTEM
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add_compile_options(-Wno-sign-compare)
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# include flag (-imsvc on clang-cl, -isystem elsewhere) keeps their diagnostics out,
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# apart from GCC's maybe-uninitialized, demoted below.
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add_compile_options(-Werror)
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# The mismatch of tabs and spaces throughout the project can sometimes
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# Demoted. Remove a name once its category is cleared on every compiler.
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# cause this warning to appear even though the indentation is fine.
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set(warnings_demoted)
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# Some includes also cause the warning
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if (APPLE)
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add_compile_options(-Wno-misleading-indentation)
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list(APPEND warnings_demoted
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# MacDarkMode.mm makes two calls to AppKit's private titlebarViewController
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# and one to a wxWidgets category on NSTableColumn whose header is not
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# imported. Clearing it means declaring the private selectors ourselves, which
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# needs a macOS build to verify.
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objc-method-access
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)
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endif ()
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if (WIN32 AND CMAKE_SYSTEM_PROCESSOR STREQUAL "ARM64")
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list(APPEND warnings_demoted
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# About two dozen GetProcAddress casts, most in the vendored dark_mode.hpp,
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# retype FARPROC to a real signature. The __stdcall typedefs are identical to
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# FARPROC on x64, so only arm64 reports them. Clearing them is a separate
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# sweep.
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cast-function-type-mismatch
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)
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endif ()
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if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
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list(APPEND warnings_demoted
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# maybe-uninitialized runs after inlining and reports inside boost/variant,
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# boost/tuple and the bundled clipper header even with -isystem.
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maybe-uninitialized
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# Disable warning if enum value does not have a corresponding case in switch statement
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# array-bounds is reported once, where ConfigOptionVector::set_at inlines
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add_compile_options(-Wno-switch)
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# into OrcaSlicer.cpp on a branch the preceding type test rules out.
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array-bounds
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# removes LOTS of extraneous Eigen warnings (GCC only supports it since 6.1)
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# template-id-cdtor is a GCC 14+ warning in the bundled Clipper2 headers.
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# https://eigen.tuxfamily.org/bz/show_bug.cgi?id=1221
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template-id-cdtor
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if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang" OR CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 6.0)
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)
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add_compile_options(-Wno-ignored-attributes) # Tamas: Eigen include dirs are marked as SYSTEM
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endif ()
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endif()
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if (CMAKE_CXX_COMPILER_ID MATCHES "Clang")
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list(APPEND warnings_demoted
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# enum-constexpr-conversion is a Clang warning that defaults to an error,
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# present through clang 20 and gone in clang 21.
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enum-constexpr-conversion
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)
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endif ()
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# Clang reports legacy OpenGL calls as deprecated. Turn off the warning for now
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# The list mixes names not every compiler has, so add each exception only where the
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# to reduce the clutter, we know about this one. It should be reenabled after
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# compiler knows the warning. Probe with the positive -W<name>, which an unknown
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# we finally get rid of the deprecated code.
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# warning fails on both compilers (GCC errors, Clang reports unknown-warning-option).
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if("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
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# An option that takes a =N argument rejects the bare -W<name>, so fall back to
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add_compile_options(-Wno-deprecated-declarations)
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# -W<name>=1 and demote with the trailing =.
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endif()
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include(CheckCXXCompilerFlag)
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foreach (category IN LISTS warnings_demoted)
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if((${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang" OR ${CMAKE_CXX_COMPILER_ID} STREQUAL "AppleClang") AND ${CMAKE_CXX_COMPILER_VERSION} VERSION_GREATER 15)
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string(MAKE_C_IDENTIFIER "ORCA_HAS_W_${category}" _orca_has_w)
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include(CheckCXXCompilerFlag)
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check_cxx_compiler_flag("-W${category}" ${_orca_has_w})
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check_cxx_compiler_flag(-Wno-error=enum-constexpr-conversion HAS_WNO_ERROR_ENUM_CONSTEXPR_CONV)
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if (${_orca_has_w})
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if(HAS_WNO_ERROR_ENUM_CONSTEXPR_CONV)
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add_compile_options(-Wno-error=${category})
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add_compile_options(-Wno-error=enum-constexpr-conversion)
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else ()
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endif()
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check_cxx_compiler_flag("-W${category}=1" ${_orca_has_w}_arg)
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endif()
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if (${${_orca_has_w}_arg})
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add_compile_options(-Wno-error=${category}=)
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#GCC generates loads of -Wunknown-pragmas when compiling igl. The fix is not easy due to a bug in gcc, see
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endif ()
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66943 or
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endif ()
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431
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endforeach ()
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# We will turn the warning of for GCC for now:
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if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
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# GCC generates loads of -Wunknown-pragmas when compiling igl. The fix is not easy due to a bug in gcc, see
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66943 or
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# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431
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# We will turn the warning of for GCC for now:
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add_compile_options(-Wno-unknown-pragmas)
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endif()
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# Compress the debug info with zstd to save space in Flatpak CI builds
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# Compress the debug info with zstd to save space in Flatpak CI builds
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if(FLATPAK)
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if(FLATPAK)
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@@ -619,10 +661,6 @@ if ((NOT MSVC OR IS_CLANG_CL) AND ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR
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endif()
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endif()
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endif()
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endif()
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if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" AND CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 14)
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error=template-id-cdtor" )
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endif()
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endif()
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endif()
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if (SLIC3R_ASAN)
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if (SLIC3R_ASAN)
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@@ -1212,8 +1250,9 @@ endif ()
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if (NOT SLIC3R_WARNINGS)
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if (NOT SLIC3R_WARNINGS)
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add_compile_options(-w)
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add_compile_options(-w)
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elseif (MSVC AND NOT IS_CLANG_CL)
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elseif (MSVC AND NOT IS_CLANG_CL)
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# /we4715 is C4715, no return from a non-void function, matching the
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# /we4715 is C4715, no return from a non-void function, an error on the GNU/Clang
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# -Werror=return-type the GNU/Clang builds apply.
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# builds under -Werror. MSVC is not in that model, so this stays a single promoted
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# warning.
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add_compile_options(/W3 /we4715)
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add_compile_options(/W3 /we4715)
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endif ()
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endif ()
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