use LDADD instead of LDFLAGS to fix build failure with ld --as-needed

sbd currently fails to build with the ld --as-needed linker option. All linked libraries need to be placed after the objects that require them. LDFLAGS is only meant for linker options - LDADD should be used to specify libraries to link against.

Author: loganrosen

src/Makefile.am

@@ -11,5 +11,5 @@ if SUPPORT_SHARED_DISK
 sbd_SOURCES += sbd-md.c
 endif
 
-sbd_LDFLAGS = $(glib_LIBS) $(libcoroipcc_LIBS)
+sbd_LDADD = $(glib_LIBS) $(libcoroipcc_LIBS)