+##
+## This file is in charge of setting our paranoid flags with regard to warnings and optimization.
+##
+## These flags do break some classical CMake tests, so you don't
+## want to do so before the very end of the configuration.
+##
+## Other compiler flags (C/C++ standard version) are tested and set
+## by the beginning of the configuration, directly in ~/CMakeList.txt
+
set(warnCFLAGS "")
set(optCFLAGS "")
-include(CheckCXXCompilerFlag)
-
-if(NOT __VISUALC__ AND NOT __BORLANDC__)
- CHECK_CXX_COMPILER_FLAG("-std=c++11" HAVE_CXX11)
- CHECK_CXX_COMPILER_FLAG("-std=c++0x" HAVE_CXX0X)
- if(HAVE_CXX11)
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11")
- elseif(HAVE_CXX0X)
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++0x")
- else()
- message(STATUS "Missing support for C++11.")
- endif()
-endif()
-if(NOT __VISUALC__ AND NOT __BORLANDC__)
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=gnu99 -g3")
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -g3")
- set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -g")
-else()
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}/Zi")
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}/Zi")
-endif()
if(enable_compile_warnings)
set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror ")
- if(CMAKE_C_COMPILER_ID STREQUAL "GNU")
+ if(CMAKE_COMPILER_IS_GNUCC)
set(warnCFLAGS "${warnCFLAGS}-Wclobbered -Wno-error=clobbered ")
- if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
- set(warnCFLAGS "${warnCFLAGS}-Wno-error=unused-but-set-variable ")
- endif()
- if(COMPILER_C_VERSION_MAJOR_MINOR STREQUAL "4.6")
- #some old compilers emit bogus warnings here, see https://gcc.gnu.org/bugzilla/show_bug.cgi?id=45978 . Avoid failing the build in this case
- set(warnCFLAGS "${warnCFLAGS}-Wno-error=array-bounds")
- endif()
endif()
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wunused -Wpointer-arith -Wchar-subscripts -Wcomment -Wno-unknown-warning-option -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wclobbered -Wno-error=clobbered -Wno-format-nonliteral -Werror")
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra -Wunused -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror")
+ if(CMAKE_COMPILER_IS_GNUCXX)
+ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wclobbered -Wno-error=clobbered")
+ endif()
set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -Wall") # FIXME: Q&D hack
endif()
else()
# On non-windows, 4.6 is enough for that
- if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5" AND LINKER_VERSION STRGREATER "2.22")
+ if(LINKER_VERSION STRGREATER "2.22")
set(optCFLAGS "${optCFLAGS} -flto ")
endif()
endif()
endforeach()
endif()
-if(enable_mc_content_adressable_pages)
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DMC_PAGE_STORE_MD4")
- set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -DMC_PAGE_STORE_MD4")
-endif()
-
if(APPLE AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
set(optCFLAGS "-O0 ")
# Try to make Mac a bit more complient to open source standards
if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
- set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE")
+ set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE=700 -D_DARWIN_C_SOURCE")
endif()
set(TESH_OPTION "")