[Qt] Add the map file symbols export as a dependency of the final qmake target.

https://bugs.webkit.org/show_bug.cgi?id=72740

Patch by Alexis Menard <alexis.menard@openbossa.org> on 2011-11-19
Reviewed by Simon Hausmann.

Add the symbols file part of the target dependencies.

* Source/api.pri:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@100853 268f45cc-cd09-0410-ab3c-d52691b4dbfc

ChangeLog

+2011-11-19  Alexis Menard  <alexis.menard@openbossa.org>
+
+        [Qt] Add the map file symbols export as a dependency of the final qmake target.
+        https://bugs.webkit.org/show_bug.cgi?id=72740
+
+        Reviewed by Simon Hausmann.
+
+        Add the symbols file part of the target dependencies.
+
+        * Source/api.pri:
+
 2011-11-18  Daniel Bates  <dbates@rim.com>
 
         Add CMake build infrastructure for the BlackBerry port

Source/api.pri

@@ -219,4 +219,7 @@ plugin_backend_xlib {
     PKGCONFIG += x11
 }
 
-linux-g++*: QMAKE_LFLAGS += -Wl,--version-script=$$PWD/qtwebkit-export.map
+linux-g++*: {
+    PRE_TARGETDEPS += $$PWD/qtwebkit-export.map
+    QMAKE_LFLAGS += -Wl,--version-script=$$PWD/qtwebkit-export.map
+}