Use common CMake tests.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit ff1ae3ff64)

ConfigureChecks.cmake

@@ -9,20 +9,24 @@
 #
 #################################################
 
+# 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( "gcc 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")
-endif( WITH_GCC_VISIBILITY )
-
-tde_setup_architecture_flags( )
+  tde_setup_gcc_visibility( )
+endif( )
 
 
 # arts
@@ -58,9 +62,6 @@ if( HAVE_SYS_TIME_H AND HAVE_TIME_H )
   set( TIME_WITH_SYS_TIME 1 )
 endif( HAVE_SYS_TIME_H AND HAVE_TIME_H )
 
-# required stuff
-find_package( TQt )
-find_package( TDE )
 
 ##### Import libtdegames ########################
 # all games require libtdegames to be imported