Allow shared build.

---
 Makefile.am             |  6 ------
 configure.ac            | 12 ------------
 include/HE5_HdfEosDef.h |  1 +
 src/Makefile.am         |  3 ++-
 4 files changed, 3 insertions(+), 19 deletions(-)

diff --git a/Makefile.am b/Makefile.am
index 363bcfb..01ed024 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -3,13 +3,7 @@
 # Include boilerplate
 include $(top_srcdir)/config/include.am
 
-# List of subdirectories.
-# Only build the testdrivers directory if configure detected that it's present.
-if TESTDRIVERS_CONDITIONAL
-TESTDRIVERS=testdrivers
-else
 TESTDRIVERS=
-endif
 
 if INSTALL_INCLUDE_CONDITIONAL
 INCLUDE=include
diff --git a/configure.ac b/configure.ac
index 5d48b43..cfa9d4e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -13,9 +13,6 @@ AC_CONFIG_AUX_DIR([config])
 AM_INIT_AUTOMAKE([foreign])
 AM_MAINTAINER_MODE
 
-# Disable shared libraries (for now)
-AC_DISABLE_SHARED
-
 AM_PROG_LIBTOOL
 
 dnl ----------------------------------------------------------------------
@@ -597,13 +594,4 @@ AC_CONFIG_FILES([Makefile
                  gctp/src/Makefile
                  samples/Makefile])
 
-if test "X$TESTDRIVERS_DIR" = "Xyes"; then
-  AC_CONFIG_FILES([ testdrivers/Makefile
-                 testdrivers/grid/Makefile
-                 testdrivers/point/Makefile
-                 testdrivers/swath/Makefile
-                 testdrivers/threads/Makefile
-                 testdrivers/za/Makefile])
-fi
-
 AC_OUTPUT
diff --git a/include/HE5_HdfEosDef.h b/include/HE5_HdfEosDef.h
index 9ed7881..abf0a90 100755
--- a/include/HE5_HdfEosDef.h
+++ b/include/HE5_HdfEosDef.h
@@ -24,6 +24,7 @@
 #ifndef HE5_HDFEOSDEF_H_
 #define HE5_HDFEOSDEF_H_
 
+#define H5_USE_16_API 1
 #include <hdf5.h>
 
 #ifdef H5_USE_16_API
diff --git a/src/Makefile.am b/src/Makefile.am
index 76b1d4c..daf7ad8 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -10,7 +10,8 @@ INCLUDES=-I$(top_srcdir)/include/
 
 # Set LDFLAGS to allow the HDF-EOS library to use extern variables from
 # HDF5
-LDFLAGS=-Wl,-single_module
+LDFLAGS+= -shrext .so
+LIBS+= -lhdf5_hl -lhdf5 -lm
 
 # Build HDF-EOS5
 lib_LTLIBRARIES=libhe5_hdfeos.la
-- 
2.5.0