diff --git a/system/filelight/filelight-1.9_rc3-gcc45.patch b/system/filelight/filelight-1.9_rc3-gcc45.patch
new file mode 100644
index 0000000000..3471cb350c
--- /dev/null
+++ b/system/filelight/filelight-1.9_rc3-gcc45.patch
@@ -0,0 +1,24 @@
+http://bugs.gentoo.org/321357
+
+--- src/app/mainWindow.cpp
++++ src/app/mainWindow.cpp
+@@ -222,7 +222,7 @@
+ 
+ inline bool MainWindow::slotScanPath(const QString &path)
+ {
+-    return slotScanUrl(KUrl::KUrl(path));
++    return slotScanUrl(KUrl(path));
+ }
+ 
+ bool MainWindow::slotScanUrl(const KUrl &url)
+--- src/part/radialMap/widget.cpp
++++ src/part/radialMap/widget.cpp
+@@ -64,7 +64,7 @@
+ KUrl
+ RadialMap::Widget::url(File const * const file) const
+ {
+-    return KUrl::KUrl(file ? file->fullPath() : m_tree->fullPath());
++    return KUrl(file ? file->fullPath() : m_tree->fullPath());
+ }
+ 
+ void
diff --git a/system/filelight/filelight.SlackBuild b/system/filelight/filelight.SlackBuild
index eb8a24a180..4ee59d6299 100644
--- a/system/filelight/filelight.SlackBuild
+++ b/system/filelight/filelight.SlackBuild
@@ -6,7 +6,7 @@
 
 PRGNAM=filelight
 VERSION=${VERSION:-1.9rc3}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 
 # Automatically determine the architecture we're building on:
@@ -55,6 +55,9 @@ find . \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \;
 
+# Fix building with gcc 4.5.
+patch -p0 < $CWD/filelight-1.9_rc3-gcc45.patch
+
 # Configure with cmake
 CFLAGS="$SLKCFLAGS" \
 CXXFLAGS="$SLKCFLAGS" \