remove usage of --no-as-needed ld flag

Theoretically, this shouldn't be needed if we aren't relying on
weak symobls in the Darshan library.

darshan-runtime/darshan-config.in

@@ -21,8 +21,8 @@ POST_LD_FLAGS="-L$DARSHAN_LIB_PATH -ldarshan @DARSHAN_LUSTRE_LD_FLAGS@ -lz -lrt
 # NOTE:
 # - when dynamic linking there is no need for wrapping options, we simply
 #   need to get the darshan symbol definitions early enough in the link
-#   order.  We also set no-as-needed for linkers that may not identify
-DYN_LD_FLAGS="-L$DARSHAN_LIB_PATH $DARSHAN_LD_FLAGS -Wl,-rpath=$DARSHAN_LIB_PATH -Wl,-no-as-needed -ldarshan @DARSHAN_LUSTRE_LD_FLAGS@ @DARSHAN_HDF5_LD_FLAGS@"
+#   order.
+DYN_LD_FLAGS="-L$DARSHAN_LIB_PATH $DARSHAN_LD_FLAGS -Wl,-rpath=$DARSHAN_LIB_PATH -ldarshan @DARSHAN_LUSTRE_LD_FLAGS@ @DARSHAN_HDF5_LD_FLAGS@"
 
 # NOTE:
 # - construct complete list of log path options, separated by commas.

darshan-runtime/pkgconfig/darshan-runtime.pc.in

@@ -16,5 +16,5 @@ darshan_libdir= -L${darshan_prefix}/lib
 darshan_linkopts="-Wl,@${darshan_share}/ld-opts/darshan-ld-opts"
 
 Cflags:
-Libs: ${darshan_libdir} -Wl,-rpath=${darshan_prefix}/lib -Wl,-no-as-needed -ldarshan @DARSHAN_LUSTRE_LD_FLAGS@ @DARSHAN_HDF5_LD_FLAGS@ @with_papi@
+Libs: ${darshan_libdir} -Wl,-rpath=${darshan_prefix}/lib -ldarshan @DARSHAN_LUSTRE_LD_FLAGS@ @DARSHAN_HDF5_LD_FLAGS@ @with_papi@
 Libs.private: ${darshan_linkopts} ${darshan_libdir} -ldarshan @DARSHAN_LUSTRE_LD_FLAGS@ -lz -lrt -lpthread @with_papi@