COMP: activate --no-defined option on linux

CMake/OTBSetStandardCompilerFlags.cmake

@@ -272,6 +272,13 @@ macro(check_compiler_platform_flags)
     set(OTB_REQUIRED_LINK_FLAGS "${OTB_REQUIRED_LINK_FLAGS} -mthreads")
   endif()
 
+  if(${CMAKE_SYSTEM_NAME} MATCHES "Linux")
+    set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--no-undefined")
+    set(CMAKE_MODULE_LINKER_FLAGS "${CMAKE_MODULE_LINKER_FLAGS} -Wl,--no-undefined")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-undefined")
+    set(OTB_REQUIRED_LINK_FLAGS "${OTB_REQUIRED_LINK_FLAGS} -Wl,--no-undefined")
+  endif()
+
   # check for OpenMP
   if(OTB_USE_OPENMP)
     find_package(OpenMP QUIET)

SuperBuild/CMakeLists.txt

@@ -97,7 +97,6 @@ if(OTB_DATA_USE_LARGEINPUT)
   mark_as_advanced(OTB_DATA_LARGEINPUT_ROOT)
 endif()
 
-
 option(BUILD_EXAMPLES " Build the OTB Examples directory" OFF)
 
 option(USE_DEFAULT_INSTALL_PREFIX "Install superbuild to default prefix /usr/local for unix" OFF)
@@ -159,12 +158,6 @@ if(MSVC)
   endif()
 endif()
 
-# if(LINUX)
-#   list(APPEND CMAKE_SHARED_LINKER_FLAGS "-Wl,--no-undefined")
-#   list(APPEND CMAKE_MODULE_LINKER_FLAGS "-Wl,--no-undefined")
-#   list(APPEND CMAKE_EXE_LINKER_FLAGS "-Wl,--no-undefined")
-# endif()
-
 if(DEFINED ENV{CMAKE_PREFIX_PATH})
   set(SB_CMAKE_PREFIX_PATH "$ENV{CMAKE_PREFIX_PATH};${SB_INSTALL_PREFIX}")
 else()
@@ -204,7 +197,6 @@ foreach(cmake_var
   endif()
 endforeach()
 
-
 if(CMAKE_VERBOSE_MAKEFILE)
   list(APPEND SB_CMAKE_CACHE_ARGS "-DCMAKE_VERBOSE_MAKEFILE:BOOL=ON")
 endif()