Specify output explicitly for the .c.o compile rule

newlib/libc/sys/nacl/Makefile.in

 # Makefile.in generated by automake 1.9.6 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
 # 2003, 2004, 2005  Free Software Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 # This program is distributed in the hope that it will be useful,
@@ skipping 220 matching lines @@
         $(lib_a_AR) lib.a $(lib_a_OBJECTS) $(lib_a_LIBADD)
         $(RANLIB) lib.a
 
 mostlyclean-compile:
         -rm -f *.$(OBJEXT)
 
 distclean-compile:
         -rm -f *.tab.c
 
 .c.o:
-        $(COMPILE) -c $<
+        $(COMPILE) -c $< -o $@
 
 .c.obj:
         $(COMPILE) -c `$(CYGPATH_W) '$<'`
 
 lib_a-dummysys.o: dummysys.c
         $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-dummysys.o `test -f 'dummysys.c' || echo '$(srcdir)/'`dummysys.c
 
 lib_a-dummysys.obj: dummysys.c
         $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-dummysys.obj `if test -f 'dummysys.c'; then $(CYGPATH_W) 'dummysys.c'; else $(CYGPATH_W) '$(srcdir)/dummysys.c'; fi`
 
@@ skipping 138 matching lines @@
         installcheck-am installdirs maintainer-clean \
         maintainer-clean-generic mostlyclean mostlyclean-compile \
         mostlyclean-generic pdf pdf-am ps ps-am tags uninstall \
         uninstall-am uninstall-info-am
 
 
 all: crt0.o
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.
 .NOEXPORT: