[libstdc++] little cosmetics in configury

[Phil Edwards <phil at codesourcery dot com>]

While looking over the ARM changes, I noticed that many of the comments
were getting out of date and incorrect, so this fixes them up.

A while back I said I'd fix up some of the unneeded defensive shell
programming next time I was editing those files, so I did.

Tested and committed.


2004-07-11  Phil Edwards  <phil@codesourcery.com>

	* acinclude.m4:  Cosmetic shell syntax fixes.
	* configure.ac:  Bring comment inline with reality.
	* configure.host:  Both of the above.  Move 'arm' case to right
	place in host_cpu switch.
	* aclocal.m4, configure:  Regenerate.


Index: acinclude.m4
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/acinclude.m4,v
retrieving revision 1.291
diff -u -p -r1.291 acinclude.m4
--- acinclude.m4	26 Jun 2004 08:42:36 -0000	1.291
+++ acinclude.m4	11 Jul 2004 07:35:20 -0000
@@ -982,8 +982,8 @@ AC_DEFUN([GLIBCXX_ENABLE_CLOCALE], [
   # Probe for locale support if no specific model is specified.
   # Default to "generic".
   if test $enable_clocale_flag = auto; then
-    case x${target_os} in
-      xlinux* | xgnu* | xkfreebsd*-gnu | xknetbsd*-gnu)
+    case ${target_os} in
+      linux* | gnu* | kfreebsd*-gnu | knetbsd*-gnu)
         AC_EGREP_CPP([_GLIBCXX_ok], [
         #include <features.h>
         #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2)
@@ -992,7 +992,7 @@ AC_DEFUN([GLIBCXX_ENABLE_CLOCALE], [
         ], enable_clocale_flag=gnu, enable_clocale_flag=generic)
 
         # Test for bugs early in glibc-2.2.x series
-          if test x$enable_clocale_flag = xgnu; then
+          if test $enable_clocale_flag = gnu; then
           AC_TRY_RUN([
           #define _GNU_SOURCE 1
           #include <locale.h>
@@ -1153,10 +1153,13 @@ AC_DEFUN([GLIBCXX_ENABLE_ALLOCATOR], [
   GLIBCXX_ENABLE(libstdcxx-allocator,auto,[=KIND],
     [use KIND for target std::allocator base],
     [permit new|malloc|mt|bitmap|pool|yes|no|auto])
+
   # If they didn't use this option switch, or if they specified --enable
   # with no specific model, we'll have to look for one.  If they
   # specified --disable (???), do likewise.
-  if test $enable_libstdcxx_allocator = no || test $enable_libstdcxx_allocator = yes; then
+  if test $enable_libstdcxx_allocator = no ||
+     test $enable_libstdcxx_allocator = yes;
+  then
      enable_libstdcxx_allocator=auto
   fi
 
Index: configure.ac
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/configure.ac,v
retrieving revision 1.22
diff -u -p -r1.22 configure.ac
--- configure.ac	8 Jul 2004 05:24:32 -0000	1.22
+++ configure.ac	11 Jul 2004 07:35:26 -0000
@@ -267,8 +267,6 @@ GLIBCXX_ENABLE_SYMVERS([yes])
 GLIBCXX_CONFIGURE_TESTSUITE
 
 # Propagate the target-specific source directories through the build chain.
-# (Nothing currently uses cpu_include_dir directly; only atomicity_include_dir 
-# uses it, and it only gets used in this file.)
 ATOMICITY_SRCDIR=config/${atomicity_dir}
 ATOMIC_WORD_SRCDIR=config/${atomic_word_dir}
 OS_INC_SRCDIR=config/${os_include_dir}
Index: configure.host
===================================================================
RCS file: /cvs/gcc/gcc/libstdc++-v3/configure.host,v
retrieving revision 1.26
diff -u -p -r1.26 configure.host
--- configure.host	2 Jul 2004 23:40:14 -0000	1.26
+++ configure.host	11 Jul 2004 07:35:26 -0000
@@ -17,8 +17,8 @@
 # It sets the following shell variables:
 #
 #   cpu_include_dir        CPU-specific directory, defaults to cpu/generic
-#                          if cpu/host_cpu doesn't exist.  This is
-#                          used to set atomicity_include_dir.
+#                          if cpu/host_cpu doesn't exist.  This is not used
+#                          directly, but sets the default for others.
 #
 #   os_include_dir         OS-specific directory, defaults to os/generic.
 #
@@ -30,6 +30,9 @@
 #   abi_baseline_pair      directory name for ABI compat testing,
 #                          defaults to host_cpu-host_os (as per config.guess)
 #
+#   abi_tweaks_dir         location of cxxabi_tweaks.h,
+#                          defaults to cpu_include_dir
+#
 #   atomicity_dir          location of atomicity.h,
 #                          defaults to cpu_include_dir
 #
@@ -72,6 +75,9 @@ case "${host_cpu}" in
   alpha*)
     try_cpu=alpha
     ;;
+  arm* | xscale | ep9312)
+    try_cpu=arm
+    ;;
   i[567]86 | x86_64)
     try_cpu=i486
     ;;
@@ -97,9 +103,6 @@ case "${host_cpu}" in
   sparc* | ultrasparc)
     try_cpu=sparc
     ;;
-  arm* | xscale | ep9312)
-    try_cpu=arm
-    ;;
   *)
     if test -d ${glibcxx_srcdir}/config/cpu/${host_cpu}; then
       try_cpu=${host_cpu}
@@ -123,8 +126,9 @@ esac
 # Now look for the file(s) usually tied to a CPU model, and make
 # default choices for those if they haven't been explicitly set
 # already.  
-cpu_include_dir="cpu/${try_cpu}"
+cpu_include_dir=cpu/${try_cpu}
 abi_baseline_pair=${try_cpu}-${host_os}
+unset try_cpu
 
 if test -f ${glibcxx_srcdir}/config/${cpu_include_dir}/atomicity.h ; then
   atomicity_dir=$cpu_include_dir
@@ -205,7 +209,7 @@ case "${host_os}" in
     # This too-vague configuration does not provide enough information
     # to select a ctype include, and thus os_include_dir is a crap shoot.
     echo "Please specify the full version of Solaris, ie. solaris2.9 " 1>&2
-    exit 1;
+    exit 1
     ;;
   solaris2.5 | solaris2.5.[0-9])
     os_include_dir="os/solaris/solaris2.5"