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# Abseil-specific compiler flags. See absl/copts.bzl for description.
# DO NOT CHANGE THIS FILE WITHOUT THE CORRESPONDING CHANGE TO absl/copts.bzl
list(APPEND GCC_FLAGS
-Wall
-Wextra
-Wcast-qual
-Wconversion-null
-Wmissing-declarations
-Woverlength-strings
-Wpointer-arith
-Wunused-local-typedefs
-Wunused-result
-Wvarargs
-Wwrite-strings
-Wno-sign-compare
)
list(APPEND GCC_TEST_FLAGS
-Wno-conversion-null
-Wno-missing-declarations
-Wno-sign-compare
-Wno-unused-function
-Wno-unused-parameter
-Wno-unused-private-field
)
list(APPEND LLVM_FLAGS
-Wall
-Wextra
-Weverything
-Wno-c++98-compat-pedantic
-Wno-conversion
-Wno-covered-switch-default
-Wno-deprecated
-Wno-disabled-macro-expansion
-Wno-double-promotion
-Wno-comma
-Wno-extra-semi
-Wno-packed
-Wno-padded
-Wno-sign-compare
-Wno-float-conversion
-Wno-float-equal
-Wno-format-nonliteral
-Wno-gcc-compat
-Wno-global-constructors
-Wno-exit-time-destructors
-Wno-nested-anon-types
-Wno-non-modular-include-in-module
-Wno-old-style-cast
-Wno-range-loop-analysis
-Wno-reserved-id-macro
-Wno-shorten-64-to-32
-Wno-switch-enum
-Wno-thread-safety-negative
-Wno-undef
-Wno-unknown-warning-option
-Wno-unreachable-code
-Wno-unused-macros
-Wno-weak-vtables
-Wbitfield-enum-conversion
-Wbool-conversion
-Wconstant-conversion
-Wenum-conversion
-Wint-conversion
-Wliteral-conversion
-Wnon-literal-null-conversion
-Wnull-conversion
-Wobjc-literal-conversion
-Wno-sign-conversion
-Wstring-conversion
)
list(APPEND LLVM_TEST_FLAGS
-Wno-c99-extensions
-Wno-missing-noreturn
-Wno-missing-prototypes
-Wno-missing-variable-declarations
-Wno-null-conversion
-Wno-shadow
-Wno-shift-sign-overflow
-Wno-sign-compare
-Wno-unused-function
-Wno-unused-member-function
-Wno-unused-parameter
-Wno-unused-private-field
-Wno-unused-template
-Wno-used-but-marked-unused
-Wno-zero-as-null-pointer-constant
-Wno-gnu-zero-variadic-macro-arguments
)
list(APPEND MSVC_FLAGS
/W3
/wd4005
/wd4018
/wd4068
/wd4180
/wd4244
/wd4267
/wd4800
/DNOMINMAX
/DWIN32_LEAN_AND_MEAN
/D_CRT_SECURE_NO_WARNINGS
/D_SCL_SECURE_NO_WARNINGS
/D_ENABLE_EXTENDED_ALIGNED_STORAGE
)
list(APPEND MSVC_TEST_FLAGS
/wd4101
/wd4503
)
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
set(ABSL_DEFAULT_COPTS "${GCC_FLAGS}")
set(ABSL_TEST_COPTS "${GCC_FLAGS};${GCC_TEST_FLAGS}")
set(ABSL_EXCEPTIONS_FLAG "-fexceptions")
elseif("${CMAKE_CXX_COMPILER_ID}" MATCHES "Clang")
# MATCHES so we get both Clang and AppleClang
set(ABSL_DEFAULT_COPTS "${LLVM_FLAGS}")
set(ABSL_TEST_COPTS "${LLVM_FLAGS};${LLVM_TEST_FLAGS}")
set(ABSL_EXCEPTIONS_FLAG "-fexceptions")
elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
set(ABSL_DEFAULT_COPTS "${MSVC_FLAGS}")
set(ABSL_TEST_COPTS "${MSVC_FLAGS};${MSVC_TEST_FLAGS}")
set(ABSL_EXCEPTIONS_FLAG "/U_HAS_EXCEPTIONS;/D_HAS_EXCEPTIONS=1;/EHsc")
else()
message(WARNING "Unknown compiler: ${CMAKE_CXX_COMPILER}. Building with no default flags")
set(ABSL_DEFAULT_COPTS "")
set(ABSL_TEST_COPTS "")
set(ABSL_EXCEPTIONS_FLAG "")
endif()
# This flag is used internally for Bazel builds and is kept here for consistency
set(ABSL_EXCEPTIONS_FLAG_LINKOPTS "")
if("${CMAKE_CXX_STANDARD}" EQUAL 98)
message(FATAL_ERROR "Abseil requires at least C++11")
elseif(NOT "${CMAKE_CXX_STANDARD}")
message(STATUS "No CMAKE_CXX_STANDARD set, assuming 11")
set(ABSL_CXX_STANDARD 11)
else()
set(ABSL_CXX_STANDARD "${CMAKE_CXX_STANDARD}")
endif()
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