More toplevel configure.ac pruning

["Joseph S. Myers" <joseph at codesourcery dot com>]

This toplevel configure patch continues pruning useless or incorrect
code, generally specific to particular hosts or targets.

* There are mentions of target-groff, target-librx and tix, but these
  are useless as they are not in Makefile.def, so they can safely be
  removed.

* libmudflap is disabled by default for most targets and so there is
  no need for a couple of individual targets to re-disable it.

* Disabling byacc based on host CPU architecture is clearly wrong.

* The directories built for a given target should not depend on the
  host (if some tools can't be built for a host, that would apply for
  all targets and so should go in the case statement over hosts).  In
  the case of code conditionally adding gprof back in (removing it
  from skipdirs), there was no previous code that could have added it
  to skipdirs in the first place, so the whole sub-case statement was
  dead.

* There doesn't seem to be any use in a commented-out noconfigdirs
  setting alongside a smaller non-commented-out setting.

OK to commit?

2011-03-24  Joseph Myers  <joseph@codesourcery.com>

	* configure.ac (target_tools): Remove target-groff.
	(native_only): Remove target-groff.
	(hppa*64*-*-*): Don't disable byacc.
	(i[[3456789]]86-*-mingw32*): Remove commented-out noconfigdirs
	setting.
	(*-*-kaos*): Don't skip target-librx and target-groff.
	(*-*-netware*): Don't skip target-libmudflap.
	(*-*-tpf*): Don't skip target-libmudflap.
	(sh*-*-pe|mips*-*-pe|*arm-wince-pe): Don't condition configured
	directories on the host.
	(ia64*-*-*vms*): Don't skip tix.
	(sh-*-* | sh64-*-*): Don't condition skipped directories on the
	host.
	* configure: Regenerate.

Index: configure.ac
===================================================================
--- configure.ac	(revision 171423)
+++ configure.ac	(working copy)
@@ -210,7 +210,7 @@
 # list belongs in this list.  those programs are also very likely
 # candidates for the "native_only" list which follows
 #
-target_tools="target-examples target-groff target-gperf target-rda"
+target_tools="target-examples target-gperf target-rda"
 
 ################################################################################
 
@@ -298,7 +298,7 @@
 
 # Some tools are only suitable for building in a "native" situation.
 # Remove these if host!=target.  
-native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff target-groff guile perl time ash bash bzip2 prms gnuserv target-gperf"
+native_only="autoconf automake libtool fileutils find gawk gettext gzip hello indent m4 rcs recode sed shellutils tar textutils uudecode wdiff guile perl time ash bash bzip2 prms gnuserv target-gperf"
 
 # Similarly, some are only suitable for cross toolchains.
 # Remove these if host=target.
@@ -426,9 +426,6 @@
 # exist yet.
 
 case "${host}" in
-  hppa*64*-*-*)
-    noconfigdirs="$noconfigdirs byacc"
-    ;;
   i[[3456789]]86-*-msdosdjgpp*)
     noconfigdirs="$noconfigdirs tcl tk expect dejagnu send-pr uudecode guile itcl gnuserv libffi"
     ;;
@@ -436,7 +433,6 @@
     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
     ;;
   i[[3456789]]86-*-mingw32*)
-    # noconfigdirs="tcl tk expect dejagnu make texinfo bison patch flex byacc send-pr uudecode dejagnu diff guile perl itcl gnuserv"
     noconfigdirs="$noconfigdirs expect dejagnu autoconf automake send-pr rcs guile perl texinfo libtool newlib"
     ;;
   *-*-cygwin*)
@@ -583,8 +579,8 @@
     ;;
   *-*-kaos*)
     # Remove unsupported stuff on all kaOS configurations.
-    skipdirs="target-libiberty ${libgcj} target-libstdc++-v3 target-librx"
-    skipdirs="$skipdirs target-libobjc target-examples target-groff target-gperf"
+    skipdirs="target-libiberty ${libgcj} target-libstdc++-v3"
+    skipdirs="$skipdirs target-libobjc target-examples target-gperf"
     skipdirs="$skipdirs zlib fastjar target-libjava target-boehm-gc target-zlib"
     noconfigdirs="$noconfigdirs target-libgloss"
     ;;
@@ -602,7 +598,7 @@
     esac
     ;;
   *-*-netware*)
-    noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj} target-libmudflap"
+    noconfigdirs="$noconfigdirs target-newlib target-libiberty target-libgloss ${libgcj}"
     ;;
   *-*-rtems*)
     skipdirs="${skipdirs} target-libiberty"
@@ -610,7 +606,7 @@
     ;;
     # The tpf target doesn't support gdb yet.
   *-*-tpf*)
-    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} target-libmudflap gdb tcl tk libgui itcl"
+    noconfigdirs="$noconfigdirs target-newlib target-libgloss target-libiberty ${libgcj} gdb tcl tk libgui itcl"
     ;;
   *-*-uclinux*)
     noconfigdirs="$noconfigdirs target-newlib target-libgloss target-rda ${libgcj}"
@@ -650,11 +646,6 @@
     # the C++ libraries don't build on top of CE's C libraries
     noconfigdirs="$noconfigdirs target-libstdc++-v3"
     noconfigdirs="$noconfigdirs target-newlib"
-    case "${host}" in
-      *-*-cygwin*) ;; # keep gdb and readline
-      *) noconfigdirs="$noconfigdirs gdb readline"
-	 ;;
-    esac
     libgloss_dir=wince
     ;;
   arc-*-*)
@@ -782,7 +773,7 @@
     ;;
   ia64*-*-*vms*)
     # No gdb or ld support yet.
-    noconfigdirs="$noconfigdirs ${libgcj} tix readline mmalloc libgui itcl gdb ld"
+    noconfigdirs="$noconfigdirs ${libgcj} readline mmalloc libgui itcl gdb ld"
     ;;
   i[[3456789]]86-*-coff | i[[3456789]]86-*-elf)
     noconfigdirs="$noconfigdirs ${libgcj}"
@@ -956,10 +947,6 @@
     noconfigdirs="$noconfigdirs bfd binutils ld gas opcodes target-libgloss ${libgcj}"
     ;;
   sh-*-* | sh64-*-*)
-    case "${host}" in
-      i[[3456789]]86-*-msdosdjgpp*) ;; # don't add gprof back in
-      *) skipdirs=`echo " ${skipdirs} " | sed -e 's/ gprof / /'` ;;
-    esac
     case "${target}" in
       sh*-*-elf)
          noconfigdirs="$noconfigdirs ${libgcj}" ;;

-- 
Joseph S. Myers
joseph@codesourcery.com