DS: Disable symbol garbage collection

Only applies when using loadable modules.
This requires a second compile run or black voodoo linker tricks.
Not implemented at this time. Disable it, so we get DS build failure
reports from buildbot (which are useful with all the DISABLE_EVERYTHING
defines).
The resulting binary might be too big to be usable.

backends/platform/ds/build-ds.sh

@@ -1,4 +1,8 @@
 #!/bin/sh
+
+echo "FIXME: feature disabled in configure"
+exit 1
+
 #
 # build-ds.sh -- script for building a ds build with every usable dynamic engine plugin
 

configure

@@ -1552,7 +1552,9 @@ case $_host_os in
 		if test "$_dynamic_modules" = no ; then
   			LDFLAGS="$LDFLAGS -Wl,--gc-sections"
  		else
-		        LDFLAGS="$LDFLAGS -Wl,--retain-symbols-file,ds.syms"
+				LDFLAGS="$LDFLAGS -Wl,--no-gc-sections"
+				# TODO automate this required 2 step linking phase
+				# LDFLAGS="$LDFLAGS -Wl,--retain-symbols-file,ds.syms"
 		fi
 		LDFLAGS="$LDFLAGS -L$DEVKITPRO/libnds/lib"
 		LIBS="$LIBS -lnds9"