1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
|
set(
_clang_gcc_warnings
-Wcast-align
-Wdouble-promotion
-Wextra
-Wextra-semi
-Wnon-virtual-dtor
-Wnull-dereference
-Woverloaded-virtual
-Wpedantic
-Wshadow
-Wunused
# Candidates for enabling in the future:
# -Wold-style-cast
# -Wconversion
# -Wsign-conversion
# -Wformat=2
)
if(WARNINGS_AS_ERRORS)
list(APPEND _clang_gcc_warnings -Werror)
endif()
if(CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
list(APPEND CCACHE_COMPILER_WARNINGS ${_clang_gcc_warnings})
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 4.0)
list(
APPEND
CCACHE_COMPILER_WARNINGS
-Qunused-arguments
-Wno-error=unreachable-code
)
endif()
add_compile_flag_if_supported(CCACHE_COMPILER_WARNINGS "-Wextra-semi-stmt")
# If compiler supports -Wshadow-field-in-constructor, disable only that.
# Otherwise disable shadow.
add_compile_flag_if_supported_ex(
CCACHE_COMPILER_WARNINGS "-Wno-shadow-field-in-constructor" "-Wno-shadow")
# Disable C++20 compatibility for now.
add_compile_flag_if_supported(CCACHE_COMPILER_WARNINGS "-Wno-c++2a-compat")
add_compile_flag_if_supported(CCACHE_COMPILER_WARNINGS "-Wno-c99-extensions")
add_compile_flag_if_supported(CCACHE_COMPILER_WARNINGS "-Wno-language-extension-token")
# If compiler supports these warnings they have to be disabled for now.
add_compile_flag_if_supported(
CCACHE_COMPILER_WARNINGS "-Wno-zero-as-null-pointer-constant")
add_compile_flag_if_supported(
CCACHE_COMPILER_WARNINGS "-Wno-undefined-func-template")
elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
list(
APPEND
CCACHE_COMPILER_WARNINGS
${_clang_gcc_warnings}
# Warn about logical operations being used where bitwise were probably
# wanted.
-Wlogical-op
# Candidates for enabling in the future:
# -Wduplicated-cond
# -Wduplicated-branches
# -Wuseless-cast
)
elseif(MSVC)
# Remove any warning level flags added by CMake.
string(REGEX REPLACE "/W[0-4]" "" CMAKE_C_FLAGS "${CMAKE_C_FLAGS}")
string(REGEX REPLACE "/W[0-4]" "" CMAKE_ASM_FLAGS "${CMAKE_ASM_FLAGS}")
string(REGEX REPLACE "/W[0-4]" "" CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}")
if(WARNINGS_AS_ERRORS)
list(APPEND CCACHE_COMPILER_WARNINGS /WX)
endif()
list(
APPEND
CCACHE_COMPILER_WARNINGS
/W4
# Ignore bad macro in winbase.h triggered by /Zc:preprocessor:
/wd5105
# Conversion warnings:
/wd4244
/wd4245
/wd4267
# Assignment in conditional:
/wd4706
# Non-underscore-prefixed POSIX functions:
/wd4996
# Dead local functions overridden by headers:
/wd4505
)
endif()
|
