oshmem: replace header files in include/mpp with symlinks

This is a work around to avoit what looks like a CMake bug

Thanks Paul Kapinos for the report

Fixes #1868

Author: ggouaillardet

oshmem/include/Makefile.am

@@ -1,5 +1,7 @@
 # Copyright (c) 2013-2015 Mellanox Technologies, Inc.
 #                         All rights reserved.
+# Copyright (c) 2016      Research Organization for Information Science
+#                         and Technology (RIST). All rights reserved.
 # $COPYRIGHT$
 #
 # Additional copyrights may follow
@@ -22,9 +24,16 @@ include_HEADERS += shmem.fh \
         shmemx.h \
         shmem-compat.h
 
-nobase_include_HEADERS = mpp/shmem.h \
-                         mpp/shmem.fh
+# Create symlinks for the (now deprecated) files in $(includedir)/mpp directory
+install-exec-hook:
+	test -z "$(includedir)" || $(MKDIR_P) "$(DESTDIR)$(includedir)/mpp"
+	(cd $(DESTDIR)$(includedir)/mpp; rm -f shmem.h; $(LN_S) ../shmem.h shmem.h)
+	(cd $(DESTDIR)$(includedir)/mpp; rm -f shmem.fh; $(LN_S) ../shmem.fh shmem.fh)
 
+uninstall-local:
+	rm -f $(DESTDIR)/$(includedir)/mpp/shmem.h \
+	      $(DESTDIR)/$(includedir)/mpp/shmem.fh
+	
 # These files are always installed in $(includedir), but shouldn't be
 # shipped since they are generated by configure from their .in
 # counterparts (which AM automatically ships).