* Makefile.in: eliminate the need for RUNTIME and CRT_ID.

Always build crt1.o, dllcrt1.o, crt2.o and dllcrt2.o.
	Create a libcoldname.a for the oldname library for CRTDLL.
	Restrict libmoldname.a for the oldname library for MSVCRT.
	* configure.in: eliminate setting RUNTIME and CRT_ID variables.
	Restructure the $target_os case logic.
	Always name the MinGW thread dll helper mingwm.
	Change Cygwin's HEADER_SUBDIR value from mingw32 to mingw.
	* configure: regenerate.

winsup/mingw/configure

@@ -1665,35 +1665,20 @@ SUBDIRS=""
 HEADER_SUBDIR=""
 
 case "$target_os" in
-*mingw32msvc*)
-  CRT_ID=2
-  MNO_CYGWIN=
-  RUNTIME=msvcrt
-  THREAD_DLL=mingwm
-  LIBM_A=libm.a
-  LIBGMON_A=libgmon.a
-  SUBDIRS="profile"
-  configdirs="$configdirs profile"
-  ;;
 *cygwin*)
-  CRT_ID=1
   MNO_CYGWIN=-mno-cygwin
-  RUNTIME=crtdll
-  THREAD_DLL=mingwc
   configdirs="$configdirs"
+  # FIXME MinGW versions of libm.a and libgmon.a needed for -mno-cygwin
   # Do not build libm.a when building under Cygwin winsup. Otherwise, it'll
   # overwrite Cygwin's one. Likewise for libgmon.a.
   LIBM_A=
   LIBGMON_A=
   # Install mingw headers in mingw subdirectory.
-  HEADER_SUBDIR="mingw32"
+  HEADER_SUBDIR="mingw"
   ;;
 *)
-  # Build it for CRTDLL by default.
-  CRT_ID=1
+  # Build it for MSVCRT by default.
   MNO_CYGWIN=
-  RUNTIME=crtdll
-  THREAD_DLL=mingwc
   LIBM_A=libm.a
   LIBGMON_A=libgmon.a
   SUBDIRS="profile"
@@ -1701,6 +1686,13 @@ case "$target_os" in
   ;;
 esac
 
+# THREAD_DLL used to be set within the above case and was mingwc for CRTDLL.
+# I can find no reason to do this.
+#
+# FIXME: In the future I would like to change the dll name to mingwthrd to
+# to match the libmingwthrd.a name.
+THREAD_DLL=mingwm
+
 if test -n "$configdirs"; then
   subdirs="$configdirs"
 
@@ -1715,8 +1707,6 @@ MKINSTALLDIRS=$ac_aux_dir/mkinstalldirs
 
 
 
-
-
 # Find a good install program.  We prefer a C program (faster),
 # so one script is as good as another.  But avoid the broken or
 # incompatible versions:
@@ -1729,7 +1719,7 @@ MKINSTALLDIRS=$ac_aux_dir/mkinstalldirs
 # SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
 # ./install, which can be erroneously created by make from ./install.sh.
 echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
-echo "configure:1733: checking for a BSD compatible install" >&5
+echo "configure:1723: checking for a BSD compatible install" >&5
 if test -z "$INSTALL"; then
 if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
@@ -1955,8 +1945,6 @@ s%@target_vendor@%$target_vendor%g
 s%@target_os@%$target_os%g
 s%@subdirs@%$subdirs%g
 s%@MKINSTALLDIRS@%$MKINSTALLDIRS%g
-s%@CRT_ID@%$CRT_ID%g
-s%@RUNTIME@%$RUNTIME%g
 s%@MNO_CYGWIN@%$MNO_CYGWIN%g
 s%@THREAD_DLL@%$THREAD_DLL%g
 s%@LIBM_A@%$LIBM_A%g