Makefile.am: change orders of sub-directories

Makefile.am

@@ -18,6 +18,8 @@ ACLOCAL_AMFLAGS=-I m4
 CLEANFILES = *.gcno *.gcda *.linkinfo
 
 SUBDIRS = src
+SUBDIRS += tools tests examples doc
+
 if USE_MPI
 SUBDIRS += mpi
 endif
@@ -26,8 +28,6 @@ if BUILD_SOCL
 SUBDIRS += socl
 endif
 
-SUBDIRS += tools examples tests doc
-
 if COND_OPT
 SUBDIRS += tests/opt examples/opt
 endif