* config/{*.mt, *.mh}: All target and host makefile fragment

config files moved to an appropriate config/<cpu> subdirectory.
	* nm-*, xm-*, tm-*:  All native, host, and target files, which
	get linked to nm.h, xm.h, and tm.h respectively by configure,
	moved to appropriate config/<cpu> subdirectory.

gdb/config/sparc/sun4sol2.mh

@@ -0,0 +1,36 @@
+# Host: Sun 4 or Sparcstation, running Solaris 2
+XDEPFILES= 
+XM_FILE= xm-sun4sol2.h
+NAT_FILE= nm-sysv4.h
+NATDEPFILES= corelow.o exec.o solib.o procfs.o fork-child.o
+SYSV_DEFINE=-DSYSV
+REGEX=regex.o
+REGEX1=regex.o
+
+# We need to find alloca() somewhere.  Gcc has one built in, but most other
+# compilers don't.  Using the one in /usr/ucblib/libucb.a is tricky because
+# we have to be careful not to pull in anything else from the library (lots
+# of things are broken in most SVR4 versions).  The best solution is to just
+# compile alloca.c and link it into the executable.  If we end up not needing
+# it, then the code is just dead.  Once alloca.c moves to libiberty, then we
+# can eliminate this semi-kludge.
+####ALLOCA=alloca.o
+####ALLOCA1=alloca.o
+
+# SVR4 comes standard with terminfo, and in some implementations, the
+# old termcap descriptions are incomplete.  So ensure that we use the
+# new terminfo interface and latest terminal descriptions.
+TERMCAP=-ltermlib
+
+# Solaris-2 makes `install' optional in the Berkeley compatability pkg.
+# cp will do fine.
+INSTALL = cp
+
+# If you are compiling with Sun's compiler, add the -xs option to CC
+# (e.g. `make CC="cc -xs"').
+# Sun's compilers require the -xs option to produce debug information
+# in the final linked executable.  Otherwise they leave it in the .o
+# files only, with undocumented pointers to it in the linked executable.
+# This is commented out because we don't assume that the Sun compiler
+# is in use.
+#MH_CFLAGS=-xs