Index: trunk/psLib/configure.ac
===================================================================
--- trunk/psLib/configure.ac	(revision 14172)
+++ trunk/psLib/configure.ac	(revision 14413)
@@ -134,6 +134,6 @@
 PSLIB_LIBS="${PSLIB_LIBS=} $CFITSIO_LDFLAGS -lcfitsio -lm"
 
-CFLAGS=${CFLAGS} ${CFITSIO_CFLAGS}
-LDFLAGS=${LDFLAGS} ${CFITSIO_LDFLAGS}
+CFLAGS="${CFLAGS=} ${CFITSIO_CFLAGS}"
+LDFLAGS="${LDFLAGS=} ${CFITSIO_LDFLAGS}"
 
 dnl Solaris needs to suck in these symbols from unusual locations