CMakeLists.txt

project (OSL)

# Release version of the library
set (OSL_LIBRARY_VERSION_MAJOR 1)
set (OSL_LIBRARY_VERSION_MINOR 5)
set (OSL_LIBRARY_VERSION_PATCH 0)
set (OSL_LIBRARY_VERSION_RELEASE_TYPE "dev")   # "dev", "betaX", "RCY", ""

# Version of the OSO file format and instruction set
set (OSO_FILE_VERSION_MAJOR 1)
set (OSO_FILE_VERSION_MINOR 0)

cmake_minimum_required (VERSION 2.6)
if (NOT CMAKE_VERSION VERSION_LESS 2.8.4)
    cmake_policy (SET CMP0017 NEW)
endif ()
set (CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS TRUE)
message (STATUS "Project source dir = ${PROJECT_SOURCE_DIR}")
message (STATUS "Project build dir = ${CMAKE_BINARY_DIR}")

if ("${PROJECT_SOURCE_DIR}" STREQUAL "${CMAKE_BINARY_DIR}")
    message (FATAL_ERROR "Not allowed to run in-source build!")
endif ()

if (NOT CMAKE_BUILD_TYPE)
    set (CMAKE_BUILD_TYPE "Release")
endif ()
if (CMAKE_BUILD_TYPE STREQUAL "Debug")
    set (DEBUGMODE ON)
endif ()
if (CMAKE_BUILD_TYPE STREQUAL "RelWithDebInfo")
    # cmake bug workaround -- on some platforms, cmake doesn't set
    # NDEBUG for RelWithDebInfo mode
    add_definitions ("-DNDEBUG")
endif ()

option (CMAKE_USE_FOLDERS "Use the FOLDER target property to organize targets into folders." ON)
mark_as_advanced (CMAKE_USE_FOLDERS)
if (CMAKE_USE_FOLDERS)
    set_property (GLOBAL PROPERTY USE_FOLDERS ON)
endif ()

# Figure out which compiler we're using
if (CMAKE_COMPILER_IS_GNUCC)
    execute_process (COMMAND ${CMAKE_C_COMPILER} -dumpversion
                     OUTPUT_VARIABLE GCC_VERSION
                     OUTPUT_STRIP_TRAILING_WHITESPACE)
    message (STATUS "Using gcc ${GCC_VERSION} as the compiler")
endif ()
message (STATUS "CMAKE_CXX_COMPILER_ID is ${CMAKE_CXX_COMPILER_ID}")
if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
    set (CMAKE_COMPILER_IS_CLANG 1)
    message (STATUS "Using clang as the compiler")
endif ()

## turn on more detailed warnings and consider warnings as errors
set (STOP_ON_WARNING ON CACHE BOOL "Stop building if there are any compiler warnings")
if (NOT MSVC)
    add_definitions ("-Wall")
    if (STOP_ON_WARNING)
        add_definitions ("-Werror")
    endif ()
endif ()

## enable RTTI
##   NOTE: LLVM builds without RTTI by default so beware
##   if you find the need to turn this on, to use OSL in a
##   project that requires RTTI for example, you need to build
##   LLVM with RRTI, otherwise OSL classes extending LLVM ones
##   will cause linker errors.
set (ENABLERTTI OFF CACHE BOOL "Build with RTTI. Requires a LLVM build with RTTI enabled.")

if (NOT ENABLERTTI)
    if (MSVC)
        set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} /GR-" )
    else ()
        set ( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-rtti" )
    endif()

    # For gcc < 4.3, Boost needs some extra help detecting that we've
    # disabled RTTI.
    if ((CMAKE_COMPILER_IS_GNUCC AND GCC_VERSION VERSION_LESS 4.3)
        OR CMAKE_COMPILER_IS_CLANG)
        add_definitions ("-DBOOST_NO_RTTI")
        add_definitions ("-DBOOST_NO_TYPEID")
    endif ()
endif()

# Needed for static boost libraries on Windows
if (WIN32 AND Boost_USE_STATIC_LIBS)
    add_definitions ("-DBOOST_ALL_NO_LIB")
    add_definitions ("-DBOOST_THREAD_USE_LIB")
endif ()

# Needed to disable dllimport/dllexport for static library
if (BUILDSTATIC)
    add_definitions ("-DOSL_STATIC_LIBRARY")
endif()

if (CMAKE_COMPILER_IS_CLANG OR CMAKE_COMPILER_IS_GNUCC)
    # CMake doesn't automatically know what do do with
    # include_directories(SYSTEM...) when using clang or gcc.
    set (CMAKE_INCLUDE_SYSTEM_FLAG_CXX "-isystem ")
endif ()

if (CMAKE_COMPILER_IS_CLANG)
    # disable warning about unused command line arguments
    add_definitions ("-Qunused-arguments -Wno-unknown-pragmas")
    # disable warning in flex-generated code
    add_definitions ("-Wno-null-conversion")
endif ()

if (CMAKE_COMPILER_IS_CLANG OR CMAKE_COMPILER_IS_GNUCC)
    if (HIDE_SYMBOLS AND NOT DEBUGMODE)
        # Turn default symbol visibility to hidden
        set (VISIBILITY_COMMAND "-fvisibility=hidden")
        add_definitions (${VISIBILITY_COMMAND})
    endif ()
    if (LLVM_STATIC AND ${CMAKE_SYSTEM_NAME} STREQUAL "Linux" AND NOT DEBUGMODE)
        # Linux: When linking against LLVM statically, we can also hide
        # all its symbols to prevent clashes if OSL is linked against an
        # app that also embeds LLVM.
        set (VISIBILITY_MAP_COMMAND "-Wl,--version-script=${PROJECT_SOURCE_DIR}/src/liboslexec/liboslexec.map")
    endif ()
endif ()

# Try to detect if this is an OSX distro new enough that the system library
# is libc++, in which case we should force use of Boost Wave (because that
# avoids a nonstandard g++ extension in the other code path).
if (EXISTS "/usr/lib/libc++.dylib" OR OSL_USE_LIBCPP)
    set (OSL_SYSTEM_HAS_LIBCPP ON)
endif ()

set (VERBOSE OFF CACHE BOOL "Print lots of messages while compiling")
set (BUILDSTATIC OFF CACHE BOOL "Build static library instead of shared")
set (HIDE_SYMBOLS OFF CACHE BOOL "Hide symbols not in the public API")
set (USE_EXTERNAL_PUGIXML OFF CACHE BOOL
     "Use an externally built shared library version of the pugixml library")
set (PUGIXML_HOME "" CACHE STRING "Hint about where to find external PugiXML library")
if (WIN32)
    set (USE_LLVM_BITCODE OFF CACHE BOOL "Generate embedded LLVM bitcode")
else ()
    set (USE_LLVM_BITCODE ON CACHE BOOL "Generated embedded LLVM bitcode")
endif ()
if (WIN32 OR OSL_SYSTEM_HAS_LIBCPP)
    set (USE_BOOST_WAVE ON CACHE BOOL "Use Boost Wave as preprocessor")
else ()
    set (USE_BOOST_WAVE OFF CACHE BOOL "Use Boost Wave as preprocessor")
endif ()
set (USE_PARTIO ON CACHE BOOL "Use Partio if found")

if (LLVM_NAMESPACE)
    add_definitions ("-DLLVM_NAMESPACE=${LLVM_NAMESPACE}")
endif ()

if (USE_EXTERNAL_PUGIXML)
    add_definitions ("-DUSE_EXTERNAL_PUGIXML")
endif ()

if (EXTRA_CPP_DEFINITIONS)
    add_definitions ("${EXTRA_CPP_DEFINITIONS}")
endif()

if (USE_BOOST_WAVE)
    add_definitions ("-DUSE_BOOST_WAVE")
endif ()

if (CMAKE_COMPILER_IS_CLANG AND OSL_USE_LIBCPP)
    message (STATUS "Using libc++")
    add_definitions ("-stdlib=libc++")
endif ()

set (CMAKE_MODULE_PATH
     "${PROJECT_SOURCE_DIR}/src/cmake/modules"
     "${PROJECT_SOURCE_DIR}/src/cmake")

include (util_macros)
include (platform)
include (oiio)
include (externalpackages)
include (flexbison)
include_directories (
      "${CMAKE_SOURCE_DIR}/src/include"
      "${CMAKE_BINARY_DIR}/include"
      "${OPENIMAGEIO_INCLUDES}"
  )

if (OSL_NAMESPACE)
    add_definitions ("-DOSL_NAMESPACE=${OSL_NAMESPACE}")
endif ()

# use, i.e. don't skip the full RPATH for the build tree
set (CMAKE_SKIP_BUILD_RPATH  FALSE)
# when building, don't use the install RPATH already
# (but later on when installing)
set (CMAKE_BUILD_WITH_INSTALL_RPATH FALSE) 
# the RPATH to be used when installing
set (CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib")
# add the automatically determined parts of the RPATH
# which point to directories outside the build tree to the install RPATH
set (CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

message (STATUS "CMAKE_INSTALL_RPATH = ${CMAKE_INSTALL_RPATH}")


###########################################################################
if (MSVC)
    add_definitions (-D_CRT_SECURE_NO_DEPRECATE)
    add_definitions (-D_CRT_SECURE_NO_WARNINGS)
    add_definitions (-D_CRT_NONSTDC_NO_WARNINGS)
    add_definitions (-D_SCL_SECURE_NO_WARNINGS)
endif (MSVC)


# We want CTest for testing
# N.B. This needs to be added before any of the subdirectories, or
# their add_test commands will not register.
include (CTest)


# Tell CMake to process the sub-directories
add_subdirectory (src/liboslcomp)
add_subdirectory (src/liboslquery)
add_subdirectory (src/liboslexec)

add_subdirectory (src/oslc)
add_subdirectory (src/shaders)
add_subdirectory (src/oslinfo)
add_subdirectory (src/testshade)
add_subdirectory (src/testrender)

add_subdirectory (src/include)
add_subdirectory (src/doc)



#########################################################################
# Testing

# Make a copy of the testsuite into the build area
if (DEFINED CMAKE_VERSION AND NOT CMAKE_VERSION VERSION_LESS 2.8)
    file (COPY "${PROJECT_SOURCE_DIR}/testsuite"
          DESTINATION "${CMAKE_BINARY_DIR}")
endif()

macro ( TESTSUITE )
    parse_arguments (_ats "LABEL" "" ${ARGN})
    # If there was a FOUNDVAR param specified and that variable name is
    # not defined, mark the test as broken.
    if (_ats_FOUNDVAR AND NOT ${_ats_FOUNDVAR})
        set (_ats_LABEL "broken")
    endif ()
    # Add the tests if all is well.
    foreach (_testname ${_ats_DEFAULT_ARGS})
        set (_testdir "${CMAKE_BINARY_DIR}/testsuite/${_testname}")
        if (_ats_LABEL MATCHES "broken")
            set (_testname "${_testname}-broken")
        endif ()
        set (_runtest python "${CMAKE_BINARY_DIR}/testsuite/runtest.py"
                             ${_testdir} ${_extra_test_args})
        if (MSVC_IDE)
            set (_runtest ${_runtest} --devenv-config $<CONFIGURATION>
                                      --solution-path "${CMAKE_BINARY_DIR}" )
        endif ()

        if (VERBOSE)
            message (STATUS "TEST ${_testname}: ${CMAKE_BINARY_DIR}/testsuite/runtest.py ${_testdir} ${_extra_test_args}")
        endif ()

        # Run the test unoptimized
        if (NOT _testname MATCHES "^render")
          set (_env TESTSHADE_OPT=0 OPENIMAGEIOHOME=${OPENIMAGEIOHOME})
          add_test ( NAME ${_testname}
                     COMMAND env ${_env} ${_runtest} )
        endif ()
        # Run the same test again with aggressive -O2 runtime
        # optimization, triggered by setting TESTSHADE_OPT env variable
        set (_env TESTSHADE_OPT=2 OPENIMAGEIOHOME=${OPENIMAGEIOHOME})
        add_test ( NAME ${_testname}.opt
                   COMMAND env ${_env} ${_runtest} )
    endforeach ()
endmacro ()

# List all the individual testsuite tests here, except those that need
# special installed tests.
#TESTSUITE ( oslc-empty )
TESTSUITE ( aastep arithmetic array array-derivs array-range
            blackbody blendmath breakcont
            bug-locallifetime bug-outputinit bug-peep
            cellnoise closure color comparison
            component-range const-array-params debugnan debug-uninit
            derivs derivs-muldiv-clobber error-dupes exit exponential
            function-earlyreturn function-simple function-outputelem
            geomath getsymbol-nonheap gettextureinfo hyperb
            ieee_fp if incdec initops intbits isconnected
            layers layers-Ciassign layers-lazy
            logic loop matrix message metadata-braces miscmath missing-shader
            noise noise-cell
            noise-gabor noise-gabor2d-filter noise-gabor3d-filter
            noise-perlin noise-uperlin noise-simplex noise-usimplex
            pnoise pnoise-cell pnoise-gabor pnoise-perlin pnoise-uperlin
            oslc-err-arrayindex oslc-err-closuremul
            oslc-err-format oslc-err-intoverflow
            oslc-err-noreturn oslc-err-paramdefault
            pointcloud pointcloud-fold
            raytype render-background render-bumptest render-cornell render-furnace-diffuse
            render-microfacet render-oren-nayar render-veachmis render-ward
            shortcircuit spline splineinverse string 
            struct struct-array struct-array-mixture
            struct-err struct-layers struct-with-array 
            struct-within-struct ternary
            texture-alpha texture-blur texture-field3d
            texture-firstchannel texture-interp 
            texture-missingcolor texture-simple
            texture-smallderivs texture-swirl
            texture-width texture-withderivs texture-wrap
            transform transformc trig typecast
            unknown-instruction vecctr vector
            wavelength_color xml )



#########################################################################
# Packaging
set (CPACK_PACKAGE_VERSION_MAJOR ${OSL_LIBRARY_VERSION_MAJOR})
set (CPACK_PACKAGE_VERSION_MINOR ${OSL_LIBRARY_VERSION_MINOR})
set (CPACK_PACKAGE_VERSION_PATCH ${OSL_LIBRARY_VERSION_PATCH})
# "Vendor" is only used in copyright notices, so we use the same thing that
# the rest of the copyright notices say.
set (CPACK_PACKAGE_VENDOR "Sony Pictures Imageworks")
set (CPACK_PACKAGE_DESCRIPTION_SUMMARY "OpenShadingLanguage is...")
set (CPACK_PACKAGE_DESCRIPTION_FILE "${PROJECT_SOURCE_DIR}/src/doc/Description.txt")
set (CPACK_PACKAGE_FILE_NAME OSL-${OSL_LIBRARY_VERSION_MAJOR}.${OSL_LIBRARY_VERSION_MINOR}.${OSL_LIBRARY_VERSION_PATCH}-${platform})
file (COPY "${PROJECT_SOURCE_DIR}/LICENSE" DESTINATION "${CMAKE_BINARY_DIR}")
file (RENAME "${CMAKE_BINARY_DIR}/LICENSE" "${CMAKE_BINARY_DIR}/License.txt")
set (CPACK_RESOURCE_FILE_LICENSE "${CMAKE_BINARY_DIR}/License.txt")
file (COPY "${PROJECT_SOURCE_DIR}/README.md" DESTINATION "${CMAKE_BINARY_DIR}")
file (RENAME "${CMAKE_BINARY_DIR}/README.md" "${CMAKE_BINARY_DIR}/Readme.txt")
set (CPACK_RESOURCE_FILE_README "${CMAKE_BINARY_DIR}/Readme.txt")
set (CPACK_RESOURCE_FILE_WELCOME "${PROJECT_SOURCE_DIR}/src/doc/Welcome.txt")
#set (CPACK_PACKAGE_EXECUTABLES I'm not sure what this is for)
#set (CPACK_STRIP_FILES Do we need this?)
if (${CMAKE_SYSTEM_NAME} STREQUAL "Linux")
    set (CPACK_GENERATOR "TGZ;STGZ;RPM;DEB")
    set (CPACK_SOURCE_GENERATOR "TGZ")
endif ()
if (APPLE)
    set (CPACK_GENERATOR "TGZ;STGZ;PackageMaker")
    set (CPACK_SOURCE_GENERATOR "TGZ")
endif ()
set (CPACK_SOURCE_PACKAGE_FILE_NAME OSL-${OSL_LIBRARY_VERSION_MAJOR}.${OSL_LIBRARY_VERSION_MINOR}.${OSL_LIBRARY_VERSION_PATCH}-source)
#set (CPACK_SOURCE_STRIP_FILES ...FIXME...)
set (CPACK_SOURCE_IGNORE_FILES ".*~")
include (CPack)