Do no emit GNU metadata if there is nothing to put into it

[pf3gnuchains/gcc-fork.git] / gcc / objc / Make-lang.in

diff --git a/gcc/objc/Make-lang.in b/gcc/objc/Make-lang.in
index 67644bb..6f48aba 100644 (file)
--- a/gcc/objc/Make-lang.in
+++ b/gcc/objc/Make-lang.in
@@ -1,6 +1,6 @@
 # Top level -*- makefile -*- fragment for GNU Objective-C
 #   Copyright (C) 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2005, 2007,
-#   2008, 2009, 2010 Free Software Foundation, Inc.
+#   2008, 2009, 2010, 2011 Free Software Foundation, Inc.
 
 #This file is part of GCC.
 
@@ -43,42 +43,62 @@ objc: cc1obj$(exeext)
 # Tell GNU make to ignore these if they exist.
 .PHONY: objc
 
+START_HDRS = $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) $(C_TREE_H) \
+  c-lang.h langhooks.h c-family/c-objc.h objc/objc-act.h
+
 # Use maximal warnings for this front end.
 objc-warn = $(STRICT_WARN)
 
 # Language-specific object files for Objective C.
-OBJC_OBJS = objc/objc-lang.o objc/objc-act.o
+OBJC_OBJS = objc/objc-lang.o objc/objc-act.o \
+   objc/objc-runtime-shared-support.o \
+   objc/objc-gnu-runtime-abi-01.o \
+   objc/objc-next-runtime-abi-01.o \
+   objc/objc-next-runtime-abi-02.o \
 
 objc_OBJS = $(OBJC_OBJS) cc1obj-checksum.o
 
-cc1obj-dummy$(exeext): $(OBJC_OBJS) $(C_AND_OBJC_OBJS) dummy-checksum.o $(BACKEND) $(LIBDEPS)
-       $(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
-             $(OBJC_OBJS) $(C_AND_OBJC_OBJS) dummy-checksum.o \
-             $(BACKEND) $(LIBS) $(BACKENDLIBS)
-
-cc1obj-checksum.c : cc1obj-dummy$(exeext) build/genchecksum$(build_exeext)
-       build/genchecksum$(build_exeext) cc1obj-dummy$(exeext) > $@
+cc1obj-checksum.c : build/genchecksum$(build_exeext) checksum-options \
+        $(OBJC_OBJS) $(C_AND_OBJC_OBJS) $(BACKEND) $(LIBDEPS)
+       build/genchecksum$(build_exeext) $(OBJC_OBJS) $(C_AND_OBJC_OBJS) \
+        $(BACKEND) $(LIBDEPS) checksum-options > cc1obj-checksum.c.tmp && \
+       $(srcdir)/../move-if-change cc1obj-checksum.c.tmp cc1obj-checksum.c
 
 cc1obj-checksum.o : cc1obj-checksum.c $(CONFIG_H) $(SYSTEM_H)
 
 cc1obj$(exeext): $(OBJC_OBJS) $(C_AND_OBJC_OBJS) cc1obj-checksum.o $(BACKEND) $(LIBDEPS)
-       $(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
+       +$(LINKER) $(ALL_LINKERFLAGS) $(LDFLAGS) -o $@ \
              $(OBJC_OBJS) $(C_AND_OBJC_OBJS) cc1obj-checksum.o \
              $(BACKEND) $(LIBS) $(BACKENDLIBS)
 
 # Objective C language specific files.
 
-objc/objc-lang.o : objc/objc-lang.c \
-   $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) $(C_TREE_H) \
-   $(GGC_H) langhooks.h $(LANGHOOKS_DEF_H) $(C_COMMON_H) gtype-objc.h \
-   c-objc-common.h objc/objc-act.h
+objc/objc-lang.o : objc/objc-lang.c $(START_HDRS) \
+   $(GGC_H) $(LANGHOOKS_DEF_H) $(C_COMMON_H) gtype-objc.h \
+   c-objc-common.h
+
+objc/objc-runtime-shared-support.o : objc/objc-runtime-shared-support.c \
+   $(START_HDRS) objc/objc-runtime-shared-support.h $(OBSTACK_H) \
+   objc/objc-next-metadata-tags.h gt-objc-objc-runtime-shared-support.h
 
-objc/objc-act.o : objc/objc-act.c \
-   $(CONFIG_H) $(SYSTEM_H) coretypes.h $(TM_H) $(TREE_H) \
-   $(TARGET_H) $(C_TREE_H) $(DIAGNOSTIC_CORE_H) toplev.h $(FLAGS_H) \
-   objc/objc-act.h input.h $(FUNCTION_H) output.h debug.h langhooks.h \
-   $(LANGHOOKS_DEF_H) $(HASHTAB_H) $(C_PRAGMA_H) gt-objc-objc-act.h \
-   $(GIMPLE_H) c-lang.h
+objc/objc-gnu-runtime-abi-01.o: objc/objc-gnu-runtime-abi-01.c $(START_HDRS) \
+   objc/objc-runtime-hooks.h $(GGC_H) \
+   objc/objc-runtime-shared-support.h gt-objc-objc-gnu-runtime-abi-01.h toplev.h
+
+objc/objc-next-runtime-abi-01.o: objc/objc-next-runtime-abi-01.c $(START_HDRS) \
+   $(GGC_H) objc/objc-runtime-hooks.h \
+   objc/objc-next-metadata-tags.h gt-objc-objc-next-runtime-abi-01.h output.h \
+   objc/objc-runtime-shared-support.h $(TARGET_H)
+
+objc/objc-next-runtime-abi-02.o: objc/objc-next-runtime-abi-02.c $(START_HDRS) \
+   $(GGC_H) objc/objc-runtime-hooks.h \
+   objc/objc-next-metadata-tags.h gt-objc-objc-next-runtime-abi-02.h $(TARGET_H) \
+   objc/objc-runtime-shared-support.h $(OBSTACK_H) 
+
+objc/objc-act.o : objc/objc-act.c $(START_HDRS) $(GGC_H) \
+   $(DIAGNOSTIC_CORE_H) toplev.h $(FLAGS_H) input.h $(FUNCTION_H) output.h debug.h \
+   $(LANGHOOKS_DEF_H) $(HASHTAB_H) $(C_PRAGMA_H) gt-objc-objc-act.h $(OBSTACK_H) \
+   $(GIMPLE_H) objc/objc-runtime-shared-support.h objc/objc-runtime-hooks.h
 
 objc.srcextra:
 
@@ -106,6 +126,12 @@ objc.tags: force
 
 lang_checks += check-objc
 
+# The following allows you to do 'make check-objc -j2'.  The
+# execute.exp tests will be run in parallel with all the other ones.
+# This is tuned for '-j2'.
+lang_checks_parallelized += check-objc
+check_objc_parallelize = execute.exp
+
 #\f
 # Install hooks:
 # cc1obj is installed elsewhere as part of $(COMPILERS).