Fixed recently introduced build problems on some platforms

3rdparty/zlib/zconf.h.cmakein

@@ -410,7 +410,7 @@ typedef uLong FAR uLongf;
  * both "#undef _LARGEFILE64_SOURCE" and "#define _LARGEFILE64_SOURCE 0" as
  * equivalently requesting no 64-bit operations
  */
-#if -_LARGEFILE64_SOURCE - -1 == 1
+#if defined _LARGEFILE64_SOURCE && -_LARGEFILE64_SOURCE - -1 == 1
 #  undef _LARGEFILE64_SOURCE
 #endif
 

CMakeLists.txt

@@ -481,6 +481,7 @@ else()
   status("    Linker flags (Release):" ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_RELEASE})
   status("    Linker flags (Debug):"   ${CMAKE_SHARED_LINKER_FLAGS} ${CMAKE_SHARED_LINKER_FLAGS_DEBUG})
 endif()
+status("    Precompiled headers:"     PCHSupport_FOUND AND ENABLE_PRECOMPILED_HEADERS THEN YES ELSE NO)
 
 # ========================== OpenCV modules ==========================
 status("")
@@ -570,7 +571,7 @@ if(WITH_TIFF)
   if(TIFF_VERSION_STRING AND TIFF_FOUND)
     status("    TIFF:"     "${TIFF_LIBRARY} (ver ${TIFF_VERSION} - ${TIFF_VERSION_STRING})")
   else()
-    status("    TIFF:"     TIFF_FOUND    THEN "${TIFF_LIBRARY} (ver ${TIFF_VERSION})"            ELSE "build (ver ${TIFF_VERSION})")
+    status("    TIFF:"     TIFF_FOUND    THEN "${TIFF_LIBRARY} (ver ${TIFF_VERSION})"            ELSE "build (ver ${TIFF_VERSION} - ${TIFF_VERSION_STRING})")
   endif()
 else()
   status("    TIFF:"       "NO")

cmake/OpenCVFindLibsGrfmt.cmake

@@ -61,6 +61,16 @@ if(TIFF_BIGTIFF_VERSION AND NOT TIFF_VERSION_BIG)
   set(TIFF_VERSION_BIG ${TIFF_BIGTIFF_VERSION})
 endif()
 
+if(NOT TIFF_VERSION_STRING AND TIFF_INCLUDE_DIR)
+  list(GET TIFF_INCLUDE_DIR 0 _TIFF_INCLUDE_DIR)
+  if(EXISTS "${_TIFF_INCLUDE_DIR}/tiffvers.h")
+    file(STRINGS "${_TIFF_INCLUDE_DIR}/tiffvers.h" tiff_version_str REGEX "^#define[\t ]+TIFFLIB_VERSION_STR[\t ]+\"LIBTIFF, Version .*")
+    string(REGEX REPLACE "^#define[\t ]+TIFFLIB_VERSION_STR[\t ]+\"LIBTIFF, Version +([^ \\n]*).*" "\\1" TIFF_VERSION_STRING "${tiff_version_str}")
+    unset(tiff_version_str)
+  endif()
+  unset(_TIFF_INCLUDE_DIR)
+endif()
+
 # --- libjpeg (optional) ---
 if(WITH_JPEG)
   if(BUILD_JPEG)

cmake/OpenCVUtils.cmake

@@ -32,6 +32,32 @@ macro(ocv_clear_vars)
   endforeach()
 endmacro()
 
+
+include(CheckCXXCompilerFlag)
+include(CheckCCompilerFlag)
+
+macro(ocv_check_flag_support lang flag varname)
+  if("_${lang}_" MATCHES "_CXX_")
+    set(_lang CXX)
+  elseif("_${lang}_" MATCHES ".*_C_.*")
+    set(_lang C)
+  else()
+    set(_lang ${lang})
+  endif()
+
+  string(TOUPPER "${flag}" ${varname})
+  string(REGEX REPLACE "^(/|-)" "HAVE_${_lang}_" ${varname} "${${varname}}")
+  string(REPLACE "-" "_" ${varname} "${${varname}}")
+
+  if(_lang STREQUAL "CXX")
+    CHECK_CXX_COMPILER_FLAG(${flag} ${${varname}})
+  elseif(_lang STREQUAL "C")
+    CHECK_C_COMPILER_FLAG("${flag}" ${${varname}})
+  else()
+    set(${varname} FALSE)
+  endif()
+endmacro()
+
 # turns off warnings
 macro(ocv_warnings_disable)
   if(NOT ENABLE_NOISY_WARNINGS)
@@ -56,11 +82,12 @@ macro(ocv_warnings_disable)
     elseif(CV_COMPILER_IS_GNU AND _gxx_warnings AND _flag_vars)
       foreach(var ${_flag_vars})
         foreach(warning ${_gxx_warnings})
-          if(warning MATCHES "^-Wno-")
-            set(${var} "${${var}} ${warning}")
-          else()
+          if(NOT warning MATCHES "^-Wno-")
             string(REPLACE "${warning}" "" ${var} "${${var}}")
             string(REPLACE "-W" "-Wno-" warning "${warning}")
+          endif()
+          ocv_check_flag_support(${var} "${warning}" _varname)
+          if(${_varname})
             set(${var} "${${var}} ${warning}")
           endif()
         endforeach()

modules/highgui/CMakeLists.txt

@@ -82,7 +82,8 @@ if(HAVE_QT)
   list(APPEND HIGHGUI_LIBRARIES ${QT_LIBRARIES} ${QT_QTTEST_LIBRARY})
   list(APPEND highgui_srcs src/window_QT.cpp ${_MOC_OUTFILES} ${_RCC_OUTFILES} )
 
-  if(CMAKE_COMPILER_IS_GNUCXX)
+  CHECK_CXX_COMPILER_FLAG(-Wno-missing-declarations HAVE_CXX_WNO_MISSING_DECLARATIONS)
+  if(HAVE_CXX_WNO_MISSING_DECLARATIONS)
     set_source_files_properties(${_RCC_OUTFILES} PROPERTIES COMPILE_FLAGS "-Wno-missing-declarations")
   endif()
 elseif(WIN32)
@@ -170,7 +171,6 @@ if(WITH_IMAGEIO)
   if(IOS)
     list(APPEND HIGHGUI_LIBRARIES "-framework ImageIO")
   endif()
-  #TODO: check if need to link with some framework on OS X: -framework ApplicationServices ??
 endif(WITH_IMAGEIO)
 
 if(WITH_AVFOUNDATION)
@@ -224,7 +224,7 @@ endif()
 set_target_properties(${the_module} PROPERTIES LINK_INTERFACE_LIBRARIES "")
 
 ocv_add_precompiled_headers(${the_module})
-ocv_warnings_disable(CMAKE_C_FLAGS -Wno-deprecated-declarations)
+ocv_warnings_disable(CMAKE_CXX_FLAGS -Wno-deprecated-declarations)
 
 if(WIN32 AND WITH_FFMPEG)
   #copy ffmpeg dll to the output folder