Index: trunk/psModules/src/Makefile.am
===================================================================
--- trunk/psModules/src/Makefile.am	(revision 4754)
+++ trunk/psModules/src/Makefile.am	(revision 5067)
@@ -1,5 +1,7 @@
-lib_LIBRARIES = libpsmodule.a
+lib_LTLIBRARIES = libpsmodule.la
 
-libpsmodule_a_SOURCES = pmFlatField.c \
+libpsmodule_la_CPPFLAGS = $(PSLIB_CFLAGS)
+libpsmodule_la_LDFLAGS  = -release $(PACKAGE_VERSION)
+libpsmodule_la_SOURCES  = pmFlatField.c \
   pmImageCombine.c \
   pmImageSubtract.c \
@@ -12,5 +14,7 @@
   pmAstrometry.c
 
-libpsmodule_a_HEADERS = pmFlatFieldErrors.h \
+libpsmodule_ladir = $(includedir)
+libpsmodule_la_HEADERS = \
+  pmFlatFieldErrors.h \
   pmMaskBadPixelsErrors.h \
   pmFlatField.h \
@@ -26,4 +30,2 @@
 
 EXTRA_DIST = psErrorCodes.dat
-
-libpsmodule_adir = $(includedir)