Commit d06a9bdf authored by Stephen Kelly's avatar Stephen Kelly Committed by Brad King

Enable some compiler warnings when building CMake.

The warnings are enabled for now only when using GCC 4.2 or later.
It may be possible later to also enable them when building CMake
with clang.  Don't duplicate the compiler flags if already set.
parent b750bf86
......@@ -585,6 +585,29 @@ option(CMAKE_STRICT
"Perform strict testing to record property and variable access. Can be used to report any undefined properties or variables" OFF)
mark_as_advanced(CMAKE_STRICT)
if(NOT CMake_VERSION_IS_RELEASE)
if("${CMAKE_C_COMPILER_ID}" STREQUAL "GNU" AND
NOT "${CMAKE_C_COMPILER_VERSION}" VERSION_LESS 4.2)
set(C_FLAGS_LIST -Wcast-align -Werror-implicit-function-declaration -Wchar-subscripts
-Wall -W -Wpointer-arith -Wwrite-strings -Wformat-security
-Wmissing-format-attribute -fno-common
)
set(CXX_FLAGS_LIST -Wnon-virtual-dtor -Wcast-align -Wchar-subscripts -Wall -W
-Wshadow -Wpointer-arith -Wformat-security
)
foreach(FLAG_LANG C CXX)
foreach(FLAG ${${FLAG_LANG}_FLAGS_LIST})
if(NOT " ${CMAKE_${FLAG_LANG}_FLAGS} " MATCHES " ${FLAG} ")
set(CMAKE_${FLAG_LANG}_FLAGS "${CMAKE_${FLAG_LANG}_FLAGS} ${FLAG}")
endif()
endforeach()
endforeach()
unset(C_FLAGS_LIST)
unset(CXX_FLAGS_LIST)
endif()
endif()
# build the remaining subdirectories
add_subdirectory(Source)
......
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