# These flags only applies to exiv2lib, and the applications, but not to the xmp code
if (COMPILER_IS_GCC OR COMPILER_IS_CLANG) # MINGW, Linux, APPLE, CYGWIN
if ( EXIV2_TEAM_WARNINGS_AS_ERRORS )
add_compile_options(-Werror -Wno-error=deprecated-declarations)
endif ()
if ( EXIV2_TEAM_EXTRA_WARNINGS )
# Note that this is intended to be used only by Exiv2 developers/contributors.
if ( COMPILER_IS_GCC )
if ( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 4.0 )
string(CONCAT EXTRA_COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
" -Wextra"
" -Wlogical-op"
" -Wdouble-promotion"
" -Wshadow"
" -Wuseless-cast"
" -Wpointer-arith" # This warning is also enabled by -Wpedantic
" -Wformat=2"
#" -Wold-style-cast"
)
endif ()
if ( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 5.0 )
string(CONCAT EXTRA_COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
" -Warray-bounds=2"
)
endif ()
if ( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 6.0 )
string(CONCAT EXTRA_COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
" -Wduplicated-cond"
)
endif ()
if ( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 7.0 )
string(CONCAT EXTRA_COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
" -Wduplicated-branches"
" -Wrestrict"
)
endif ()
endif ()
if ( COMPILER_IS_CLANG )
# https://clang.llvm.org/docs/DiagnosticsReference.html
# These variables are at least available since clang 3.9.1
string(CONCAT EXTRA_COMPILE_FLAGS "-Wextra"
" -Wshadow"
" -Wassign-enum"
" -Wmicrosoft"
" -Wcomments"
" -Wconditional-uninitialized"
" -Wdirect-ivar-access"
" -Weffc++"
" -Wpointer-arith"
" -Wformat=2"
#" -Warray-bounds" # Enabled by default
# These two raises lot of warnings. Use them wisely
#" -Wconversion"
#" -Wold-style-cast"
)
# -Wdouble-promotion flag is not available in clang 3.4.2
if ( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 3.4.2 )
string(CONCAT EXTRA_COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
" -Wdouble-promotion"
)
endif ()
# -Wcomma flag is not available in clang 3.8.1
if ( CMAKE_CXX_COMPILER_VERSION VERSION_GREATER 3.8.1 )
string(CONCAT EXTRA_COMPILE_FLAGS ${EXTRA_COMPILE_FLAGS}
" -Wcomma"
)
endif ()
endif ()
endif ()
endif()
if (MSVC)
if ( EXIV2_TEAM_WARNINGS_AS_ERRORS )
add_compile_options(/WX)
set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} /WX")
set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} /WX")
set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /WX")
endif ()
endif ()