Fix gcrt0.o compilation

When static-start-installed-name is different from
start-installed-name, we must not use the shared objects.

* csu/Makefile
(extra-objs): Add gmon-start.o when building shared library and
$(static-start-installed-name) is different from
$(start-installed-name).
$(objpfx)g$(static-start-installed-name): When building shared
library and $(static-start-installed-name) is different from
$(static-start-installed-name), revert to non-shared rule,
i.e. using $(objpfx)% and gmon-start.o.

ChangeLog

@@ -1,3 +1,19 @@
+2015-08-07  Samuel Thibault  <samuel.thibault@ens-lyon.org>
+
+	Fix gcrt0.o compilation
+
+	When static-start-installed-name is different from
+	start-installed-name, we must not use the shared objects.
+
+	* csu/Makefile
+	(extra-objs): Add gmon-start.o when building shared library and
+	$(static-start-installed-name) is different from
+	$(start-installed-name).
+	$(objpfx)g$(static-start-installed-name): When building shared
+	library and $(static-start-installed-name) is different from
+	$(static-start-installed-name), revert to non-shared rule,
+	i.e. using $(objpfx)% and gmon-start.o.
+
 2015-08-06  Joseph Myers  <joseph@codesourcery.com>
 
 	[BZ #16519]

csu/Makefile

@@ -47,6 +47,9 @@ tests-static := tst-empty
 
 ifeq (yes,$(build-shared))
 extra-objs += S$(start-installed-name) gmon-start.os
+ifneq ($(start-installed-name),$(static-start-installed-name))
+extra-objs += gmon-start.o
+endif
 install-lib += S$(start-installed-name)
 generated += start.os
 else
@@ -98,10 +101,14 @@ endif
 # startfile with gmon-start.o, which defines a constructor function
 # to turn on profiling code at startup.
 ifeq (yes,$(build-shared))
-$(addprefix $(objpfx),$(sort g$(start-installed-name) \
-			     g$(static-start-installed-name))): \
+$(objpfx)g$(start-installed-name): \
   $(objpfx)g%: $(objpfx)S% $(objpfx)gmon-start.os
 	$(link-relocatable)
+ifneq ($(start-installed-name),$(static-start-installed-name))
+$(objpfx)g$(static-start-installed-name): \
+  $(objpfx)g%: $(objpfx)% $(objpfx)gmon-start.o
+	$(link-relocatable)
+endif
 else
 $(addprefix $(objpfx),$(sort g$(start-installed-name) \
 			     g$(static-start-installed-name))): \