Use common CMake tests.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit 9f6b1118bc)

CMakeLists.txt

@@ -24,6 +24,7 @@ set( VERSION R14.0.5 )
 
 include( FindPkgConfig )
 include( CheckFunctionExists )
+include( CheckSymbolExists )
 include( CheckIncludeFile )
 include( CheckIncludeFileCXX )
 include( CheckCXXSourceCompiles )

ConfigureChecks.cmake

@@ -10,25 +10,22 @@
 #################################################
 
 # required stuff
+
 tde_setup_architecture_flags( )
 
 include(TestBigEndian)
 test_big_endian(WORDS_BIGENDIAN)
 
+tde_setup_largefiles( )
+
 find_package( TQt )
 find_package( TDE )
 
+
 ##### check for gcc visibility support #########
-# FIXME
-# This should check for [T]Qt3 visibility support
 
 if( WITH_GCC_VISIBILITY )
-  if( NOT UNIX )
-    tde_message_fatal(FATAL_ERROR "\ngcc visibility support was requested, but your system is not *NIX" )
-  endif( NOT UNIX )
-  set( __KDE_HAVE_GCC_VISIBILITY 1 )
-  set( CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -fvisibility=hidden -fvisibility-inlines-hidden")
-  set( CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fvisibility=hidden -fvisibility-inlines-hidden")
+  tde_setup_gcc_visibility( )
 endif( )