2002-09-13 Joel Sherrill <joel@OARcorp.com>

* Part of addressing PR281.
	* main.cfg: Added recognition of VARIANT=DEBUG on command line.
	* compilers/gcc-target-default.cfg: Removed remaining support for
	RTEMS_USE_GCC272 and RTEMS_LIBC_DIR as well as added -qrtems_debug
	as one of the LDFLAGS when the debug variant is specified.

make/compilers/gcc-target-default.cfg

@@ -27,39 +27,6 @@ CFLAGS   = $(CFLAGS_DEFAULT) $(XCFLAGS)
 CXXFLAGS = $(CFLAGS_DEFAULT) $(XCXXFLAGS)
 ASFLAGS  = $(CPU_ASFLAGS) $(XASFLAGS)
 
-ifeq ($(RTEMS_USE_GCC272),yes)
-ifeq ($(RTEMS_CROSS_TARGET),no)
-
-ifdef RTEMS_LIBC_DIR
-RTEMS_LIBC_INCLUDES := -I$(RTEMS_LIBC_DIR)/include
-endif
-
-# Used for posix bsps
-CPPFLAGS += \
-  -I$(PROJECT_INCLUDE) \
-  $(RTEMS_LIBC_INCLUDES)
-else
-# Used for embedded bsps
-# Ask gcc where it finds its own include files
-GCC_INCLUDE=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=include $(GCCSED))
-
-CPPFLAGS += -nostdinc \
-  -I$(PROJECT_INCLUDE) \
-  -I$(GCC_INCLUDE) \
-  -I$(RTEMS_LIBC_DIR)/sys-include \
-  -I$(RTEMS_LIBC_DIR)/include
-endif
-
-# default location of Standard C Library
-ifndef LIBC_LIBC
-LIBC_LIBC=$(RTEMS_LIBC_DIR)/lib/libc.a
-endif
-
-ifndef LIBC_LIBM
-LIBC_LIBM=$(RTEMS_LIBC_DIR)/lib/libm.a
-endif
-
-else
 # NOTE: GCCSPECS probably belongs to CPPFLAGS
 # Unfortunately, many custom/*.cfg files do not pass CPPFLAGS
 # to their gcc-2.8 make-exe rules
@@ -70,16 +37,6 @@ CXX += $(GCCSPECS)
 
 CPPFLAGS += 
 
-# default location of Standard C Library
-ifndef LIBC_LIBC
-LIBC_LIBC=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=libc.a $(GCCSED))
-endif
-
-ifndef LIBC_LIBM
-LIBC_LIBM=$(shell $(CC) $(CPU_CFLAGS) -print-file-name=libm.a $(GCCSED))
-endif
-endif
-
 # Define this to yes if C++ is included in the development environment.
 # This requires that at least the GNU C++ compiler and libg++ be installed.
 ifeq ($(HAS_CPLUSPLUS),yes)
@@ -90,10 +47,8 @@ endif
 CFLAGS_DEBUG_V+=-Wno-unused
 CXXFLAGS_DEBUG_V+=
 
-ifeq ($(RTEMS_USE_GCC272),no)
 CFLAGS_DEBUG_V+=-qrtems_debug
 CXXFLAGS_DEBUG_V+=-qrtems_debug
-endif
 
 # when debugging, optimize flag: typically empty
 # some compilers do allow optimization with their "-g"
@@ -140,7 +95,7 @@ LDFLAGS_DYNAMIC_LIBNAME_V = -h $(DYNAMIC_VERSION_LIBNAME)
 
 # ld flags for profiling, debugging
 LDFLAGS_PROFILE_V =
-LDFLAGS_DEBUG_V =
+LDFLAGS_DEBUG_V = -qrtems_debug
 
 LDFLAGS=$(LDFLAGS_PROFILE) $(LDFLAGS_DEBUG) $(LD_PATHS:%=-L %)
 
@@ -237,23 +192,10 @@ else
   START_FILE=$(PROJECT_RELEASE)/lib/$(START_BASE)$(LIB_VARIANT).o
 endif
 
-CONSTRUCTOR=
-
-LIBC_LOW=
-
-ifndef LIBGCC
-LIBGCC = $(shell $(CC) $(CFLAGS) -print-libgcc-file-name $(GCCSED))
-endif
-
 #
 # NOTE: a rule to link an rtems' application should look similar to this
 #       (cf. "make-exe" in make/custom/*.cfg): 
 #
-# gcc27:
-# $(PGM): $(LINK_FILES)
-#	$(LD) $(LDFLAGS) -o $@ $(LINK_OBJS) \
-#	--start-group $(LINK_LIBS) --end-group
-#
 # gcc28:
 # $(PGM): $(LINK_FILES)
 #	$(CC) $(CFLAGS) -o $@ $(LINK_OBJS) $(LINK_LIBS)
@@ -272,17 +214,6 @@ LINK_FILES =\
     $(PROJECT_RELEASE)/lib/librtemsbsp$(LIBSUFFIX_VA) \
     $(PROJECT_RELEASE)/lib/librtemscpu$(LIBSUFFIX_VA)
 
-ifeq ($(RTEMS_USE_GCC272),yes)
-LINK_LIBS = $(PROJECT_RELEASE)/lib/librtemsall$(LIBSUFFIX_VA)
-ifeq ($(RTEMS_CROSS_TARGET),yes)
-# NOTE: add libc and libgcc only for embedded targets
-#       LIBC_LIBM should not be needed by rtems itself.
-# FIXME: If a BSP requires libm, its make/custom/*.cfg file should add
-#        LIBC_LIBM to LINK_LIBS (untested)
-LINK_LIBS += $(LIBC_LIBC) $(LIBGCC)
-endif
-endif
-
 LINK_LIBS += $(LD_LIBS)    
 
 #
@@ -292,13 +223,7 @@ ifndef LINKCMDS
 LINKCMDS=$(PROJECT_RELEASE)/lib/linkcmds
 endif
 
-ifeq ($(RTEMS_USE_GCC272),yes)
 define make-rel
-	$(LD) $(LDFLAGS_INCOMPLETE) $(XLDFLAGS) -o $@ $^
-endef
-else
-define make-rel
-	$(LINK.c) $(AM_CFLAGS) $(AM_LDFLAGS) \
+	$(LINK.c) $(CFLAGS) $(AM_CFLAGS) $(AM_LDFLAGS) \
 	  -qnolinkcmds -nostdlib -Wl,-r $(XLDFLAGS) -o $@ $^
 endef
-endif