Added conditional to avoid problems when ALU3dGrid isn't used

[[Imported from SVN: r2042]]

grid/alu3dgrid/Makefile.am

 AM_CPPFLAGS = $(ALU3DGRID_CPPFLAGS)
 
-noinst_LTLIBRARIES = libalu3d.la
-
-libalu3d_la_SOURCES = alu3dmappings.cc
+if ALU3DGRID
+  noinst_LTLIBRARIES = libalu3d.la
+  libalu3d_la_SOURCES = alu3dmappings.cc
+endif
 
 alu3dgriddir = $(includedir)/dune/grid/alu3dgrid/
 alu3dgrid_HEADERS = alu3dgrid.cc alu3dinclude.hh alu3dgridcomm.hh \

lib/Makefile.am

@@ -11,6 +11,9 @@ libdune_la_SOURCES =
 # sub-libraries
 libdune_la_LIBADD = ../common/libcommon.la
 libdune_la_LIBADD += ../grid/onedgrid/libonedgrid.la
-libdune_la_LIBADD += ../grid/alu3dgrid/libalu3d.la
+if ALU3DGRID
+  libdune_la_LIBADD += ../grid/alu3dgrid/libalu3d.la
+endif
+libdune_la_LIBADD += ../quadrature/common/libquad.la
 
 include $(top_srcdir)/am/sourcescheck