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try to get the win build working despite gcc bugs
[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
23   set(CMAKE_JAVA_COMPILE_FLAGS "-Xlint")
24 endif()
25
26 if(enable_compile_optimizations)
27   set(optCFLAGS "-O3 -finline-functions -funroll-loops -fno-strict-aliasing ")
28   if(COMPILER_C_VERSION_MAJOR_MINOR STRGREATER "4.5")
29     set(optCFLAGS "${optCFLAGS}-flto ")
30   endif()
31 else()
32   set(optCFLAGS "-O0 ")
33 endif()
34
35 if(APPLE AND COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
36   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Wno-deprecated-declarations")
37   set(optCFLAGS "-O0 ")
38 endif()
39
40 if(WIN32) # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50293
41   if (COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.7" OR 
42       COMPILER_C_VERSION_MAJOR_MINOR MATCHES "4.6")
43   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} --disable-lto")
44 endif()
45
46 if(NOT enable_debug)
47   set(CMAKE_C_FLAGS "-DNDEBUG ${CMAKE_C_FLAGS}")
48 endif()
49
50 if(enable_msg_deprecated)
51   set(CMAKE_C_FLAGS "-DMSG_USE_DEPRECATED ${CMAKE_C_FLAGS}")
52 endif()
53
54 set(CMAKE_C_FLAGS "${optCFLAGS}${warnCFLAGS}${CMAKE_C_FLAGS}")
55
56 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${optCFLAGS}")
57
58 # Try to make Mac a bit more complient to open source standards
59 if(CMAKE_SYSTEM_NAME MATCHES "Darwin")
60   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -D_XOPEN_SOURCE")
61 endif()
62
63 set(TESH_OPTION "")
64 if(enable_coverage)
65   find_program(GCOV_PATH gcov)
66   if(GCOV_PATH)
67     SET(COVERAGE_COMMAND "${GCOV_PATH}" CACHE TYPE FILEPATH FORCE)
68     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -DCOVERAGE")
69     set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fprofile-arcs -ftest-coverage")
70     set(CMAKE_Fortran_FLAGS "${CMAKE_Fortran_FLAGS} -fprofile-arcs -ftest-coverage")
71     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fprofile-arcs -ftest-coverage")
72     set(TESH_OPTION --enable-coverage)
73     add_definitions(-fprofile-arcs -ftest-coverage)
74   endif()
75 endif()
76
77 if(NOT $ENV{CFLAGS} STREQUAL "")
78   message(STATUS "Add CFLAGS: \"$ENV{CFLAGS}\" to CMAKE_C_FLAGS")
79   set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} $ENV{CFLAGS}")
80 endif()
81
82 if(NOT $ENV{LDFLAGS} STREQUAL "")
83   message(STATUS "Add LDFLAGS: \"$ENV{LDFLAGS}\" to CMAKE_C_LINK_FLAGS")
84   set(CMAKE_C_LINK_FLAGS "${CMAKE_C_LINK_FLAGS} $ENV{LDFLAGS}")
85 endif()
86
87 if(enable_model-checking AND enable_compile_optimizations)
88   message(WARNING "Sorry for now GCC optimizations does not work with model checking.\nPlease turn off optimizations with command:\ncmake -Denable_compile_optimizations=off .")
89 endif()