Add automake support for --enable-gcc-hidden-visibility.

pirms 12 gadiem · 1b3d219def
--- a/configure.in.in
+++ b/configure.in.in
@ -1,4 +1,5 @@
 #MIN_CONFIG(3.2)
+KDE_ENABLE_HIDDEN_VISIBILITY
 CXXFLAGS="$CXXFLAGS $KDE_DEFAULT_CXXFLAGS"

 if test "$build_arts" = "yes"; then