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# -*- cmake -*-
#
# Compilation options shared by all Second Life components.

include(Variables)


# Portable compilation flags.

set(CMAKE_CXX_FLAGS_DEBUG "-D_DEBUG -DLL_DEBUG=1")
set(CMAKE_CXX_FLAGS_RELEASE
    "-DLL_RELEASE=1 -DLL_RELEASE_FOR_DOWNLOAD=1 -D_SECURE_SCL=0 -DLL_SEND_CRASH_REPORTS=1 -DNDEBUG")
set(CMAKE_CXX_FLAGS_RELWITHDEBINFO 
    "-DLL_RELEASE=1 -D_SECURE_SCL=0 -DLL_SEND_CRASH_REPORTS=0 -DNDEBUG -DLL_RELEASE_WITH_DEBUG_INFO=1")


# Don't bother with a MinSizeRel build.

set(CMAKE_CONFIGURATION_TYPES "RelWithDebInfo;Release;Debug" CACHE STRING
    "Supported build types." FORCE)


# Platform-specific compilation flags.

if (WINDOWS)
  # Don't build DLLs.
  set(BUILD_SHARED_LIBS OFF)

  set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /Od /Zi /MDd"
      CACHE STRING "C++ compiler debug options" FORCE)
  set(CMAKE_CXX_FLAGS_RELWITHDEBINFO 
      "${CMAKE_CXX_FLAGS_RELWITHDEBINFO} /Od /Zi /MD"
      CACHE STRING "C++ compiler release-with-debug options" FORCE)
  set(CMAKE_CXX_FLAGS_RELEASE
      "${CMAKE_CXX_FLAGS_RELEASE} ${LL_CXX_FLAGS} /O2 /Zi /MD"
      CACHE STRING "C++ compiler release options" FORCE)

  set(CMAKE_CXX_STANDARD_LIBRARIES "")
  set(CMAKE_C_STANDARD_LIBRARIES "")

  add_definitions(
      /DLL_WINDOWS=1
      /DUNICODE
      /D_UNICODE 
      /GS
      /TP
      /W3
      /c
      /Zc:forScope
      /nologo
      /Oy-
      )
     
  if(MSVC80 OR MSVC90)
    set(CMAKE_CXX_FLAGS_RELEASE
      "${CMAKE_CXX_FLAGS_RELEASE} -D_SECURE_STL=0 -D_HAS_ITERATOR_DEBUGGING=0"
      CACHE STRING "C++ compiler release options" FORCE)
   
    add_definitions(
      /Zc:wchar_t-
      )
  endif (MSVC80 OR MSVC90)
  
  # Are we using the crummy Visual Studio KDU build workaround?
  if (NOT VS_DISABLE_FATAL_WARNINGS)
    add_definitions(/WX)
  endif (NOT VS_DISABLE_FATAL_WARNINGS)
endif (WINDOWS)


if (LINUX)
  set(CMAKE_SKIP_RPATH TRUE)

  # Here's a giant hack for Fedora 8, where we can't use
  # _FORTIFY_SOURCE if we're using a compiler older than gcc 4.1.

  find_program(GXX g++)
  mark_as_advanced(GXX)

  if (GXX)
    execute_process(
        COMMAND ${GXX} --version
        COMMAND sed "s/^[gc+ ]*//"
        COMMAND head -1
        OUTPUT_VARIABLE GXX_VERSION
        OUTPUT_STRIP_TRAILING_WHITESPACE
        )
  else (GXX)
    set(GXX_VERSION x)
  endif (GXX)

  # The quoting hack here is necessary in case we're using distcc or
  # ccache as our compiler.  CMake doesn't pass the command line
  # through the shell by default, so we end up trying to run "distcc"
  # " g++" - notice the leading space.  Ugh.

  execute_process(
      COMMAND sh -c "${CMAKE_CXX_COMPILER} ${CMAKE_CXX_COMPILER_ARG1} --version"
      COMMAND sed "s/^[gc+ ]*//"
      COMMAND head -1
      OUTPUT_VARIABLE CXX_VERSION
      OUTPUT_STRIP_TRAILING_WHITESPACE)

  if (${GXX_VERSION} STREQUAL ${CXX_VERSION})
    add_definitions(-D_FORTIFY_SOURCE=2)
  else (${GXX_VERSION} STREQUAL ${CXX_VERSION})
    if (NOT ${GXX_VERSION} MATCHES " 4.1.*Red Hat")
      add_definitions(-D_FORTIFY_SOURCE=2)
    endif (NOT ${GXX_VERSION} MATCHES " 4.1.*Red Hat")
  endif (${GXX_VERSION} STREQUAL ${CXX_VERSION})

  # GCC 4.3 introduces a pile of obnoxious new warnings, which we
  # treat as errors due to -Werror.  Quiet the most offensive and
  # widespread of them.

  if (${CXX_VERSION} MATCHES "4.3")
    add_definitions(-Wno-deprecated -Wno-parentheses)
  endif (${CXX_VERSION} MATCHES "4.3")

  # End of hacks.

  add_definitions(
      -DLL_LINUX=1
      -D_REENTRANT
      -fexceptions
      -fno-math-errno
      -fno-strict-aliasing
      -fsigned-char
      -g
      -pthread
      )

  if (SERVER)
    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -ftemplate-depth-60")
    if (EXISTS /etc/debian_version)
      FILE(READ /etc/debian_version DEBIAN_VERSION)
    else (EXISTS /etc/debian_version)
      set(DEBIAN_VERSION "")
    endif (EXISTS /etc/debian_version)

    if (NOT DEBIAN_VERSION STREQUAL "3.1")
      add_definitions(-DCTYPE_WORKAROUND)
    endif (NOT DEBIAN_VERSION STREQUAL "3.1")

    if (EXISTS /usr/lib/mysql4/mysql)
      link_directories(/usr/lib/mysql4/mysql)
    endif (EXISTS /usr/lib/mysql4/mysql)

    add_definitions(
        -msse2
        -mfpmath=sse
        )
  endif (SERVER)

  if (VIEWER)
    add_definitions(-DAPPID=secondlife)
    add_definitions(-fvisibility=hidden)
    if (NOT STANDALONE)
      # this stops us requiring a really recent glibc at runtime
      add_definitions(-fno-stack-protector)
    endif (NOT STANDALONE)
  endif (VIEWER)

  set(CMAKE_CXX_FLAGS_DEBUG "-fno-inline ${CMAKE_CXX_FLAGS_DEBUG}")
  set(CMAKE_CXX_FLAGS_RELEASE "-O2 ${CMAKE_CXX_FLAGS_RELEASE}")
endif (LINUX)


if (DARWIN)
  add_definitions(-DLL_DARWIN=1)
  set(CMAKE_CXX_LINK_FLAGS "-Wl,-headerpad_max_install_names,-search_paths_first")
  set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_CXX_LINK_FLAGS}")
  set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -mlong-branch")
  set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mlong-branch")
  # NOTE: it's critical that the optimization flag is put in front.
  # NOTE: it's critical to have both CXX_FLAGS and C_FLAGS covered.
  set(CMAKE_CXX_FLAGS_RELWITHDEBINFO "-O0 ${CMAKE_CXX_FLAGS_RELWITHDEBINFO}")
  set(CMAKE_C_FLAGS_RELWITHDEBINFO "-O0 ${CMAKE_C_FLAGS_RELWITHDEBINFO}")
endif (DARWIN)


if (LINUX OR DARWIN)
  set(GCC_WARNINGS "-Wall -Wno-sign-compare -Wno-trigraphs")

  if (NOT GCC_DISABLE_FATAL_WARNINGS)
    set(GCC_WARNINGS "${GCC_WARNINGS} -Werror")
  endif (NOT GCC_DISABLE_FATAL_WARNINGS)

  set(GCC_CXX_WARNINGS "${GCC_WARNINGS} -Wno-reorder")

  set(CMAKE_C_FLAGS "${GCC_WARNINGS} ${CMAKE_C_FLAGS}")
  set(CMAKE_CXX_FLAGS "${GCC_CXX_WARNINGS} ${CMAKE_CXX_FLAGS}")
endif (LINUX OR DARWIN)


if (STANDALONE)
  add_definitions(-DLL_STANDALONE=1)

  if (LINUX AND ${ARCH} STREQUAL "i686")
    add_definitions(-march=pentiumpro)
  endif (LINUX AND ${ARCH} STREQUAL "i686")

else (STANDALONE)
  set(${ARCH}_linux_INCLUDES
      ELFIO
      atk-1.0
      glib-2.0
      gstreamer-0.10
      gtk-2.0
      llfreetype2
      pango-1.0
      )
endif (STANDALONE)

if(SERVER)
  include_directories(${LIBS_PREBUILT_DIR}/include/havok)
endif(SERVER)