For each of the recently added warning flags check to see if the

compiler supports the flag before adding it.
This commit is contained in:
Glenn Rice 2013-01-29 21:28:55 -06:00
parent 0e04e0c305
commit 7676c4d43b
1 changed files with 26 additions and 27 deletions

View File

@ -109,32 +109,37 @@ endif()
# Various compile flags
add_definitions(-msse2)
include(CheckCXXCompilerFlag)
macro(check_and_add_flag var flag)
CHECK_CXX_COMPILER_FLAG(${flag} FLAG_${var})
if(FLAG_${var})
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${flag}")
endif()
endmacro()
# Enabling all warnings in MSVC spams too much
if(NOT MSVC)
add_definitions(-Wall
add_definitions(-Wall)
# TODO: would like these but they produce overwhelming amounts of warnings
# -Wextra
# -Wmissing-field-initializers
# -Wswitch-default
# -Wfloat-equal
# -Wconversion
# -Wzero-as-null-pointer-constant
-Wtype-limits
-Wsign-compare
-Wignored-qualifiers
-Wuninitialized
-Wshadow
-Winit-self)
if (NOT (${CMAKE_C_COMPILER} MATCHES "clang"))
add_definitions(-Wlogical-op)
endif()
#check_and_add_flag(EXTRA -Wextra)
#check_and_add_flag(MISSING_FIELD_INITIALIZERS -Wmissing-field-initializers)
#check_and_add_flag(SWITCH_DEFAULT -Wswitch-default)
#check_and_add_flag(FLOAT_EQUAL -Wfloat-equal)
#check_and_add_flag(CONVERSION -Wconversion)
#check_and_add_flag(ZERO_AS_NULL_POINTER_CONSTANT -Wzero-as-null-pointer-constant)
check_and_add_flag(TYPE_LIMITS -Wtype-limits)
check_and_add_flag(SIGN_COMPARE -Wsign-compare)
check_and_add_flag(IGNORED_QUALIFIERS -Wignored-qualifiers)
check_and_add_flag(UNINITIALIZED -Wuninitialized)
check_and_add_flag(LOGICAL_OP -Wlogical-op)
check_and_add_flag(SHADOW -Wshadow)
check_and_add_flag(INIT_SELF -Winit-self)
endif(NOT MSVC)
# gcc uses some optimizations which might break stuff without this flag
add_definitions(-fno-strict-aliasing -fno-exceptions -Wno-psabi)
include(CheckCXXCompilerFlag)
# We call fread numerous times without checking return values. Hide the
# corresponding compiler warnings if the compiler supports doing so.
CHECK_CXX_COMPILER_FLAG(-Wunused-result NO_UNUSED_RESULT)
@ -142,16 +147,10 @@ if(NO_UNUSED_RESULT)
add_definitions(-Wno-unused-result)
endif(NO_UNUSED_RESULT)
CHECK_CXX_COMPILER_FLAG(-fvisibility-inlines-hidden VISIBILITY_INLINES_HIDDEN)
if(VISIBILITY_INLINES_HIDDEN)
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility-inlines-hidden")
endif(VISIBILITY_INLINES_HIDDEN)
check_and_add_flag(VISIBILITY_INLINES_HIDDEN -fvisibility-inlines-hidden)
if(UNIX AND NOT APPLE)
CHECK_CXX_COMPILER_FLAG(-fvisibility=hidden VISIBILITY_HIDDEN)
if(VISIBILITY_HIDDEN)
add_definitions(-fvisibility=hidden)
endif(VISIBILITY_HIDDEN)
check_and_add_flag(VISIBILITY_HIDDEN -fvisibility=hidden)
endif()
if(APPLE)