doc/doxygen: improve doc

doc/doxygen/chapters/advanced_examples.doxy

@@ -1206,7 +1206,7 @@ More advanced examples include:
 <dl>
 <dt><c>filters/</c></dt>
 <dd>
-    Examples using filters, as shown in \ref Partitioning_Data.
+    Examples using filters, as shown in \ref PartitioningData.
 </dd>
 <dt><c>lu/</c></dt>
 <dd>

doc/doxygen/chapters/basic_examples.doxy

@@ -720,7 +720,7 @@ $ STARPU_NCPU=0 ./vector_scal
 \endverbatim
 
 or by disabling CUDA devices (which may permit to enable the use of OpenCL,
-see \ref Enabling_OpenCL) :
+see \ref EnablingOpenCL) :
 
 \verbatim
 $ STARPU_NCUDA=0 ./vector_scal

doc/doxygen/chapters/building.doxy

@@ -86,8 +86,7 @@ $ ./autogen.sh
 \endverbatim
 
 You then need to configure StarPU. Details about options that are
-useful to give to <c>./configure</c> are given in @ref{Compilation
-configuration}.
+useful to give to <c>./configure</c> are given in \ref CompilationConfiguration.
 
 \verbatim
 $ ./configure

doc/doxygen/chapters/performance_feedback.doxy

@@ -243,7 +243,7 @@ $ ./configure --with-fxt=$FXTDIR
 \endverbatim
 
 Or you can simply point the <c>PKG_CONFIG_PATH</c> to
-<c>$FXTDIR/lib/pkgconfig</c> and pass \ref with-fx to
+<c>$FXTDIR/lib/pkgconfig</c> and pass \ref with-fxt to
 <c>./configure</c>
 
 When FxT is enabled, a trace is generated when StarPU is terminated by calling