New patches submitted from eg123 for the automatization of the configuration process. Use of pkg-config to find dolfin and eigen3 includes and libs * src/Makefile.in: make variables (CPPFLAGS, LDFLAGS, LIBS) are defined substituting the Autoconf ones * src/configure.ac: dolfin and eigen3 compile and link flags are looked for through pkg-config macros * DESCRIPTION: added pkg-config as a build-dependency configure fails if dependencies are not met.

--- a/src/Makefile.in	Wed Mar 05 11:59:02 2014 +0000
+++ b/src/Makefile.in	Mon Mar 10 08:58:56 2014 +0000
@@ -1,6 +1,10 @@
 MKOCTFILE ?= mkoctfile
 FFC ?= ffc
 
+CPPFLAGS=@DENSE_CPPFLAGS@ @DOLFIN_CPPFLAGS@ @EIGEN_CPPFLAGS@
+LDFLAGS=@EIGEN_LDFLAGS@ @DOLFIN_LDFLAGS@
+LIBS=@EIGEN_LIBS@ @DOLFIN_LIBS@
+
 OCTFILES= Mesh.oct \
              DirichletBC.oct \
              Expression.oct \