Use common CMake tests.

Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit e744eb988b)

ConfigureChecks.cmake

@@ -9,17 +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(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( )
 
 
@@ -38,7 +45,3 @@ check_include_file( systems.h HAVE_SYSTEMS_H )
 check_include_file( linux/inotify.h HAVE_INOTIFY )
 
 check_function_exists( statvfs HAVE_STATVFS )
-
-# common required stuff
-find_package( TQt )
-find_package( TDE )