Fail if format.lds comes out empty.

2 files changed, 3 insertions, 0 deletions

diff --git a/ChangeLog b/ChangeLog
index a5167235e7..63887b7913 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,5 +1,7 @@
 2011-07-02  Roland McGrath  <roland@hack.frob.com>
 
+	* Makerules ($(common-objpfx)format.lds): Fail if result is empty.
+
 	* Makefile ($(common-objpfx)testrun.sh): Generate to work relative to
 	containing directory rather than embedding absolute directory names.
 
diff --git a/Makerules b/Makerules
index 3234fc23ce..d70a196ded 100644
--- a/Makerules
+++ b/Makerules
@@ -993,6 +993,7 @@ $(common-objpfx)format.lds: $(..)scripts/output-format.sed \
 	$(LINK.o) -shared $(sysdep-LDFLAGS) $(config-LDFLAGS) $(LDFLAGS.so) \
 		  -x c /dev/null -o $@.so -Wl,--verbose -v 2>&1 \
 	| sed -n -f $< > $@.new
+	test -s $@.new
 	rm -f $@.so
 	mv -f $@.new $@
 common-generated += format.lds