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[simgrid.git] / buildtools / Cmake / Flags.cmake
1 set(warnCFLAGS "")
2 set(optCFLAGS "")
3
4 if(NOT __VISUALC__ AND NOT __BORLANDC__)
5   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}-g3")
6   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}-g3")
7 else()
8   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS}/Zi")
9   set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS}/Zi")
10 endif()
11
12 if(enable_compile_warnings)
13   set(warnCFLAGS "-fno-common -Wall -Wunused -Wmissing-prototypes -Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wcomment -Wformat -Wwrite-strings -Wclobbered -Wno-unused-function -Wno-unused-parameter -Wno-strict-aliasing -Wno-format-nonliteral -Werror -Wno-error=clobbered ")
14   if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
15     set(warnCFLAGS "${warnCFLAGS}-Wno-error=unused-but-set-variable ")
16   endif()
17   if(CMAKE_C_COMPILER_ID STREQUAL "Clang")
18     string(REPLACE "-Wclobbered " "" warnCFLAGS "${warnCFLAGS}")
19   endif()
20
21   set(CMAKE_Fortran_FLAGS "-Wall") # FIXME: Q&D hack
22 endif()
23
24 if(enable_compile_optimizations)
25   set(optCFLAGS "-O3 -finline-functions -funroll-loops -fno-strict-aliasing ")
26   if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
27     set(optCFLAGS "${optCFLAGS}-flto ")
28   endif()
29 else()
30   set(optCFLAGS "-O0 ")
31 endif()
32
33 if(APPLE AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
34   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
35   set(optCFLAGS "-O0 ")
36 endif()
37
38 if(NOT enable_debug)
39   set(CMAKE_C_FLAGS "-DNDEBUG ${CMAKE_C_FLAGS}")
40 endif()
41
42 if(enable_msg_deprecated)
43   set(CMAKE_C_FLAGS "-DMSG_USE_DEPRECATED ${CMAKE_C_FLAGS}")
44 endif()
45
46 set(CMAKE_C_FLAGS "${optCFLAGS}${warnCFLAGS}${CMAKE_C_FLAGS}")
47
48 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${optCFLAGS}")
49
50 # Try to make Mac a bit more complient to open source standards
51 if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
52   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE")
53 endif()
54
55 set(TESH_OPTION "")
56 if(enable_coverage)
57   find_program(GCOV_PATH gcov)
58   if(GCOV_PATH)
59     SET(COVERAGE_COMMAND "${GCOV_PATH}" CACHE TYPE FILEPATH FORCE)
60     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DCOVERAGE")
61     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
62     set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fprofile-arcs -ftest-coverage")
63     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
64     set(TESH_OPTION --enable-coverage)
65     add_definitions(-fprofile-arcs -ftest-coverage)
66   endif()
67 endif()
68
69 if(NOT $ENV{CFLAGS} STREQUAL "")
70   message(STATUS "Add CFLAGS: \"$ENV{CFLAGS}\" to CMAKE_C_FLAGS")
71   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} $ENV{CFLAGS}")
72 endif()
73
74 if(NOT $ENV{LDFLAGS} STREQUAL "")
75   message(STATUS "Add LDFLAGS: \"$ENV{LDFLAGS}\" to CMAKE_C_LINK_FLAGS")
76   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} $ENV{LDFLAGS}")
77 endif()
78
79 if(enable_model-checking AND enable_compile_optimizations)
80   message(WARNING "Sorry for now GCC optimizations does not work with model checking.\nPlease turn off optimizations with command:\ncmake -Denable_compile_optimizations=off. ")
81 endif()