File: CMakeLists.txt

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mldemos 0.5.1-3
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#
# This is a CMake makefile.  You can find the cmake utility and
# information about it at http://www.cmake.org
#

# setting this makes CMake allow normal looking if else statements
SET(CMAKE_ALLOW_LOOSE_LOOP_CONSTRUCTS true)

cmake_minimum_required(VERSION 2.4)

# Suppress cmake warnings about changes in new versions.
if(COMMAND cmake_policy) 
   cmake_policy(SET CMP0003 NEW) 
endif()


# make macros that can add #define directives to the entire project.  Not just 
# to the dlib library itself.  I.e. to dlib and to any projects that depend
# on dlib.
macro ( add_global_define def_name )
   if (NOT CMAKE_CXX_FLAGS MATCHES "-D${def_name}")
      set (CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -D${def_name}" 
         CACHE STRING "Flags used by the compiler during all C++ builds." 
         FORCE)
   endif ()
endmacro()
macro ( remove_global_define def_name )
   if (CMAKE_CXX_FLAGS MATCHES " -D${def_name}")
      string (REGEX REPLACE " -D${def_name}" "" temp_var ${CMAKE_CXX_FLAGS}) 
      set (CMAKE_CXX_FLAGS "${temp_var}" 
         CACHE STRING "Flags used by the compiler during all C++ builds." 
         FORCE)
   endif ()
endmacro()


# Make sure ENABLE_ASSERTS is defined for debug builds
if (NOT CMAKE_CXX_FLAGS_DEBUG MATCHES "-DENABLE_ASSERTS")
   set (CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} -DENABLE_ASSERTS" 
      CACHE STRING "Flags used by the compiler during C++ debug builds." 
      FORCE)
endif ()

set (DLIB_ISO_CPP_ONLY_STR 
"Enable this if you don't want to compile any non-ISO C++ code (i.e. you don't use any of the API Wrappers)" )
set (DLIB_NO_GUI_SUPPORT_STR 
"Enable this if you don't want to compile any of the dlib GUI code" )
set (DLIB_ENABLE_STACK_TRACE_STR 
"Enable this if you want to turn on the DLIB_STACK_TRACE macros" )
set (DLIB_ENABLE_ASSERTS_STR 
"Enable this if you want to turn on the DLIB_ASSERT macro" )
set (DLIB_USE_BLAS_STR
"Disable this if you don't want to use a BLAS library" )
set (DLIB_USE_LAPACK_STR
"Disable this if you don't want to use a LAPACK library" )
set (DLIB_LINK_WITH_LIBPNG_STR
"Disable this if you don't want to link against libpng" )
set (DLIB_LINK_WITH_LIBJPEG_STR
"Disable this if you don't want to link against libjpeg" )
set (DLIB_LINK_WITH_SQLITE3_STR
"Disable this if you don't want to link against sqlite3" )

option(DLIB_ISO_CPP_ONLY ${DLIB_ISO_CPP_ONLY_STR} OFF)
option(DLIB_NO_GUI_SUPPORT ${DLIB_NO_GUI_SUPPORT_STR} OFF)
option(DLIB_ENABLE_STACK_TRACE ${DLIB_ENABLE_STACK_TRACE_STR} OFF)
option(DLIB_ENABLE_ASSERTS ${DLIB_ENABLE_ASSERTS_STR} OFF)
option(DLIB_USE_BLAS ${DLIB_USE_BLAS_STR} ON)
option(DLIB_USE_LAPACK ${DLIB_USE_LAPACK_STR} ON)
option(DLIB_LINK_WITH_LIBPNG ${DLIB_LINK_WITH_LIBPNG_STR} ON)
option(DLIB_LINK_WITH_LIBJPEG ${DLIB_LINK_WITH_LIBJPEG_STR} ON)
option(DLIB_LINK_WITH_SQLITE3 ${DLIB_LINK_WITH_SQLITE3_STR} ON)


add_library(dlib STATIC all/source.cpp )


if (NOT DLIB_ISO_CPP_ONLY)
   # we want to link to the right stuff depending on our platform.  
   if (WIN32 AND NOT CYGWIN) ###############################################################################
      if (DLIB_NO_GUI_SUPPORT)
         set (dlib_needed_libraries ws2_32)
      else()
         set (dlib_needed_libraries ws2_32 comctl32 gdi32 imm32)
      endif()
   elseif(APPLE) ############################################################################
      find_library(pthreadlib pthread)
      set (dlib_needed_libraries ${pthreadlib})

      if (NOT DLIB_NO_GUI_SUPPORT)
         find_library(xlib X11)
         # make sure X11 is in the include path
         find_path(xlib_path Xlib.h
            PATHS 
            /Developer/SDKs/MacOSX10.4u.sdk/usr/X11R6/include
            PATH_SUFFIXES X11
            )
         if (xlib AND xlib_path)
            get_filename_component(x11_path ${xlib_path} PATH CACHE)
            include_directories(${x11_path})
            set(dlib_needed_libraries ${dlib_needed_libraries} ${xlib} )
         else()
            message(" ***********************************************************************************")
            message(" ****** DLIB GUI SUPPORT DISABLED BECAUSE X11 DEVELOPMENT LIBRARIES NOT FOUND ******")
            message(" ****** Make sure libx11-dev is installed if you want GUI support             ******")
            message(" ***********************************************************************************")
            set(DLIB_NO_GUI_SUPPORT ON CACHE STRING ${DLIB_NO_GUI_SUPPORT_STR} FORCE )
         endif()
      endif()

      mark_as_advanced(pthreadlib xlib xlib_path x11_path)
   else () ##################################################################################
      find_library(pthreadlib pthread)
      set (dlib_needed_libraries ${pthreadlib})

      # link to the nsl library if it exists.  this is something you need sometimes 
      find_library(nsllib nsl)
      if (nsllib)
         set (dlib_needed_libraries ${dlib_needed_libraries} ${nsllib})
      endif ()

      # link to the socket library if it exists.  this is something you need on solaris
      find_library(socketlib socket)
      if (socketlib)
         set (dlib_needed_libraries ${dlib_needed_libraries} ${socketlib})
      endif ()

      if (NOT DLIB_NO_GUI_SUPPORT)
         include(FindX11)
         if (X11_FOUND)
            include_directories(${X11_INCLUDE_DIR})
            set (dlib_needed_libraries ${dlib_needed_libraries} ${X11_LIBRARIES})
         else()
            message(" ***********************************************************************************")
            message(" ****** DLIB GUI SUPPORT DISABLED BECAUSE X11 DEVELOPMENT LIBRARIES NOT FOUND ******")
            message(" ****** Make sure libx11-dev is installed if you want GUI support             ******")
            message(" ***********************************************************************************")
            set(DLIB_NO_GUI_SUPPORT ON CACHE STRING ${DLIB_NO_GUI_SUPPORT_STR} FORCE )
         endif()
      endif()

      mark_as_advanced(nsllib pthreadlib socketlib)
   endif () ##################################################################################



   if (DLIB_LINK_WITH_LIBPNG)
      # try to find libpng 
      set(ZLIB_FIND_QUIETLY ON)
      set(PNG_FIND_QUIETLY ON)
      include(FindPNG)
      if (PNG_FOUND)
         include_directories(${PNG_INCLUDE_DIR})
         set (dlib_needed_libraries ${dlib_needed_libraries} ${PNG_LIBRARY})
      else()
         set(DLIB_LINK_WITH_LIBPNG OFF CACHE STRING ${DLIB_LINK_WITH_LIBPNG_STR} FORCE )
      endif()
   endif()

   if (DLIB_LINK_WITH_LIBJPEG)
      # try to find libjpeg 
      include(FindJPEG)
      if (JPEG_FOUND)
         include_directories(${JPEG_INCLUDE_DIR})
         set (dlib_needed_libraries ${dlib_needed_libraries} ${JPEG_LIBRARY})
      else()
         set(DLIB_LINK_WITH_LIBJPEG OFF CACHE STRING ${DLIB_LINK_WITH_LIBJPEG_STR} FORCE )
      endif()
   endif()


   if (DLIB_USE_BLAS OR DLIB_USE_LAPACK)
      # Try to find BLAS and LAPACK 
      include(cmake_find_blas.txt)

      if (DLIB_USE_BLAS)
         if (blas_found)
            set (dlib_needed_libraries ${dlib_needed_libraries} ${blas_libraries})
         else()
            set(DLIB_USE_BLAS OFF CACHE STRING ${DLIB_USE_BLAS_STR} FORCE )
         endif()
      endif()

      if (DLIB_USE_LAPACK)
         if (lapack_found)
            set (dlib_needed_libraries ${dlib_needed_libraries} ${lapack_libraries})
         else()
            set(DLIB_USE_LAPACK OFF CACHE STRING ${DLIB_USE_LAPACK_STR} FORCE )
         endif()
      endif()
   endif()



   if (DLIB_LINK_WITH_SQLITE3)
      find_library(sqlite sqlite3)
      # make sure sqlite3.h is in the include path
      find_path(sqlite_path sqlite3.h)
      if (sqlite AND sqlite_path)
         get_filename_component(sqlite_path2 ${sqlite_path} PATH CACHE)
         include_directories(${sqlite_path2})
         set(dlib_needed_libraries ${dlib_needed_libraries} ${sqlite} )
      else()
         set(DLIB_LINK_WITH_SQLITE3 OFF CACHE STRING ${DLIB_LINK_WITH_SQLITE3_STR} FORCE )
      endif()
      mark_as_advanced(sqlite sqlite_path sqlite_path2)
   endif()


   target_link_libraries(dlib ${dlib_needed_libraries} )

endif ()  ##### end of if NOT DLIB_ISO_CPP_ONLY ##########################################################


#test for some things that really should be true about the compiler
include(TestForSTDNamespace)
include(TestForANSIStreamHeaders)


if (DLIB_LINK_WITH_LIBPNG AND NOT DLIB_ISO_CPP_ONLY)
   add_global_define(DLIB_PNG_SUPPORT)
else()
   remove_global_define(DLIB_PNG_SUPPORT)
endif()

if (DLIB_LINK_WITH_LIBJPEG AND NOT DLIB_ISO_CPP_ONLY)
   add_global_define(DLIB_JPEG_SUPPORT)
else()
   remove_global_define(DLIB_JPEG_SUPPORT)
endif()


if (DLIB_USE_BLAS AND blas_found)
   add_global_define(DLIB_USE_BLAS)
else()
   remove_global_define(DLIB_USE_BLAS)
endif()

if (DLIB_USE_LAPACK AND lapack_found)
   add_global_define(DLIB_USE_LAPACK)
else()
   remove_global_define(DLIB_USE_LAPACK)
endif()


if (DLIB_ISO_CPP_ONLY)
   add_global_define(DLIB_ISO_CPP_ONLY)
else()
   remove_global_define(DLIB_ISO_CPP_ONLY)
endif()


if (DLIB_NO_GUI_SUPPORT)
   add_global_define(DLIB_NO_GUI_SUPPORT)
else()
   remove_global_define(DLIB_NO_GUI_SUPPORT)
endif()

if (DLIB_ENABLE_STACK_TRACE)
   add_global_define(DLIB_ENABLE_STACK_TRACE)
else()
   remove_global_define(DLIB_ENABLE_STACK_TRACE)
endif()


if (DLIB_ENABLE_ASSERTS)
   add_global_define(ENABLE_ASSERTS)
else()
   remove_global_define(ENABLE_ASSERTS)
endif()