Hurd: Support --prefix=/usr special-casing for all GNU systems.

ChangeLog

@@ -1,5 +1,13 @@
 2012-05-10  Thomas Schwinge  <thomas@schwinge.name>
 
+	* sysdeps/mach/hurd/configure.in: Remove warning for --prefix=[...].
+	* sysdeps/mach/hurd/configure: Regenerated.
+	* sysdeps/unix/sysv/linux/configure.in: Move --prefix=/usr
+	special-casing to...
+	* sysdeps/gnu/configure.in: ... this new file.
+	* sysdeps/unix/sysv/linux/configure: Regenerated.
+	* sysdeps/gnu/configure: New generated file.
+
 	* sysdeps/mach/hurd/bits/stat.h (struct stat): Align to what is done
 	for Linux: use nsec instead of usec, as well as:
 	[__USE_MISC || __USE_XOPEN2K8] (st_atim, st_mtim, st_ctim): New

sysdeps/gnu/configure

@@ -0,0 +1,36 @@
+# This file is generated from configure.in by Autoconf.  DO NOT EDIT!
+
+# Local configure fragment for sysdeps/gnu.
+
+# The Filesystem Hierarchy Standard prescribes where to place "essential"
+# files.  I.e., when the installation prefix is "/usr" we have to place
+# shared library objects and the configuration files on the root partition
+# in /lib and /etc.
+case "$prefix" in
+/usr | /usr/)
+  # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
+  # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
+  # and libc_cv_localedir.
+  test -n "$libc_cv_slibdir" || \
+  case $machine in
+  sparc/sparc64 | x86_64* | powerpc/powerpc64 | s390/s390-64)
+    libc_cv_slibdir=/lib64
+    if test "$libdir" = '${exec_prefix}/lib'; then
+      libdir='${exec_prefix}/lib64';
+      # Locale data can be shared between 32bit and 64bit libraries
+      libc_cv_localedir='${exec_prefix}/lib/locale'
+    fi
+    ;;
+  *)
+    libc_cv_slibdir=/lib
+    ;;
+  esac
+  # Allow the user to override the path with --sysconfdir
+  if test "$sysconfdir" = '${prefix}/etc'; then
+    libc_cv_sysconfdir=/etc
+  else
+    libc_cv_sysconfdir=$sysconfdir
+   fi
+  libc_cv_rootsbindir=/sbin
+  ;;
+esac

sysdeps/gnu/configure.in

@@ -0,0 +1,36 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+
+# Local configure fragment for sysdeps/gnu.
+
+# The Filesystem Hierarchy Standard prescribes where to place "essential"
+# files.  I.e., when the installation prefix is "/usr" we have to place
+# shared library objects and the configuration files on the root partition
+# in /lib and /etc.
+case "$prefix" in
+/usr | /usr/)
+  # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
+  # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
+  # and libc_cv_localedir.
+  test -n "$libc_cv_slibdir" || \
+  case $machine in
+  sparc/sparc64 | x86_64* | powerpc/powerpc64 | s390/s390-64)
+    libc_cv_slibdir=/lib64
+    if test "$libdir" = '${exec_prefix}/lib'; then
+      libdir='${exec_prefix}/lib64';
+      # Locale data can be shared between 32bit and 64bit libraries
+      libc_cv_localedir='${exec_prefix}/lib/locale'
+    fi
+    ;;
+  *)
+    libc_cv_slibdir=/lib
+    ;;
+  esac
+  # Allow the user to override the path with --sysconfdir
+  if test "$sysconfdir" = '${prefix}/etc'; then
+    libc_cv_sysconfdir=/etc
+  else
+    libc_cv_sysconfdir=$sysconfdir
+   fi
+  libc_cv_rootsbindir=/sbin
+  ;;
+esac

sysdeps/mach/hurd/configure

@@ -1,22 +1,135 @@
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+  return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+  set +e
+  as_fn_set_status $1
+  exit $1
+} # as_fn_exit
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+   test "X`expr 00001 : '.*\(...\)'`" = X001; then
+  as_expr=expr
+else
+  as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+  as_basename=basename
+else
+  as_basename=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+	 X"$0" : 'X\(//\)$' \| \
+	 X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+    sed '/^.*\/\([^/][^/]*\)\/*$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\/\)$/{
+	    s//\1/
+	    q
+	  }
+	  /^X\/\(\/\).*/{
+	    s//\1/
+	    q
+	  }
+	  s/.*/./; q'`
+
+
+  as_lineno_1=$LINENO as_lineno_1a=$LINENO
+  as_lineno_2=$LINENO as_lineno_2a=$LINENO
+  eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+  test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+  # Blame Lee E. McMahon (1931-1989) for sed's syntax.  :-)
+  sed -n '
+    p
+    /[$]LINENO/=
+  ' <$as_myself |
+    sed '
+      s/[$]LINENO.*/&-/
+      t lineno
+      b
+      :lineno
+      N
+      :loop
+      s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+      t loop
+      s/-\n.*//
+    ' >$as_me.lineno &&
+  chmod +x "$as_me.lineno" ||
+    { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+  # Don't try to exec as it changes $[0], causing all sort of problems
+  # (the dirname of $[0] is not the place where we might find the
+  # original and so on.  Autoconf is especially sensitive to this).
+  . "./$as_me.lineno"
+  # Exit status is that of the last command.
+  exit
+}
+
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+  as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+  rm -f conftest.$ac_objext
+  if { { ac_try="$ac_compile"
+case "(($ac_try" in
+  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+  *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+  (eval "$ac_compile") 2>conftest.err
+  ac_status=$?
+  if test -s conftest.err; then
+    grep -v '^ *+' conftest.err >conftest.er1
+    cat conftest.er1 >&5
+    mv -f conftest.er1 conftest.err
+  fi
+  $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+  test $ac_status = 0; } && {
+	 test -z "$ac_c_werror_flag" ||
+	 test ! -s conftest.err
+       } && test -s conftest.$ac_objext; then :
+  ac_retval=0
+else
+  $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+	ac_retval=1
+fi
+  eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+  as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
 # This file is generated from configure.in by Autoconf.  DO NOT EDIT!
 
 # GNU libc on the Hurd is always reentrant.
 DEFINES="$DEFINES -D_LIBC_REENTRANT"
 
-cat >>confdefs.h <<\_ACEOF
+$as_echo "#define NO_HIDDEN 1" >>confdefs.h
-#define NO_HIDDEN 1
-_ACEOF
 
 
 # Don't bother trying to generate any glue code to be compatible with the
 # existing system library, because we are the only system library.
 inhibit_glue=yes
 
-if test "x$prefix" != x; then
-  { $as_echo "$as_me:$LINENO: WARNING: --prefix= (empty) is required for GNU/Hurd to work normally" >&5
-$as_echo "$as_me: WARNING: --prefix= (empty) is required for GNU/Hurd to work normally" >&2;}
-fi
-
 case "$machine" in
   i386*)
     # The default oldest ABI is 2.2.6.
@@ -28,16 +141,12 @@ case "$machine" in
 esac
 
 
-{ $as_echo "$as_me:$LINENO: checking Hurd header version" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking Hurd header version" >&5
 $as_echo_n "checking Hurd header version... " >&6; }
-if test "${libc_cv_hurd_version+set}" = set; then
+if ${libc_cv_hurd_version+:} false; then :
   $as_echo_n "(cached) " >&6
 else
-  cat >conftest.$ac_ext <<_ACEOF
+  cat confdefs.h - <<_ACEOF >conftest.$ac_ext
-/* confdefs.h.  */
-_ACEOF
-cat confdefs.h >>conftest.$ac_ext
-cat >>conftest.$ac_ext <<_ACEOF
 /* end confdefs.h.  */
 #include <hurd/version.h>
 int
@@ -52,38 +161,15 @@ main ()
   return 0;
 }
 _ACEOF
-rm -f conftest.$ac_objext
+if ac_fn_c_try_compile "$LINENO"; then :
-if { (ac_try="$ac_compile"
-case "(($ac_try" in
-  *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
-  *) ac_try_echo=$ac_try;;
-esac
-eval ac_try_echo="\"\$as_me:$LINENO: $ac_try_echo\""
-$as_echo "$ac_try_echo") >&5
-  (eval "$ac_compile") 2>conftest.er1
-  ac_status=$?
-  grep -v '^ *+' conftest.er1 >conftest.err
-  rm -f conftest.er1
-  cat conftest.err >&5
-  $as_echo "$as_me:$LINENO: \$? = $ac_status" >&5
-  (exit $ac_status); } && {
-	 test -z "$ac_c_werror_flag" ||
-	 test ! -s conftest.err
-       } && test -s conftest.$ac_objext; then
   libc_cv_hurd_version=ok
 else
-  $as_echo "$as_me: failed program was:" >&5
+  libc_cv_hurd_version=bad
-sed 's/^/| /' conftest.$ac_ext >&5
-
-	libc_cv_hurd_version=bad
 fi
-
 rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
 fi
-{ $as_echo "$as_me:$LINENO: result: $libc_cv_hurd_version" >&5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_hurd_version" >&5
 $as_echo "$libc_cv_hurd_version" >&6; }
 if test "x$libc_cv_hurd_version" != xok; then
-  { { $as_echo "$as_me:$LINENO: error: Hurd headers not installed or too old" >&5
+  as_fn_error $? "Hurd headers not installed or too old" "$LINENO" 5
-$as_echo "$as_me: error: Hurd headers not installed or too old" >&2;}
-   { (exit 1); exit 1; }; }
 fi

sysdeps/mach/hurd/configure.in

@@ -10,10 +10,6 @@ AC_DEFINE([NO_HIDDEN])
 # existing system library, because we are the only system library.
 inhibit_glue=yes
 
-if test "x$prefix" != x; then
-  AC_MSG_WARN([--prefix= (empty) is required for GNU/Hurd to work normally])
-fi
-
 case "$machine" in
   i386*)
     # The default oldest ABI is 2.2.6.

sysdeps/unix/sysv/linux/configure

@@ -382,38 +382,6 @@ fi
 if test -n "$sysheaders"; then
   CPPFLAGS=$OLD_CPPFLAGS
 fi
-# The Linux filesystem standard prescribes where to place "essential"
-# files.  I.e., when the installation prefix is "/usr" we have to place
-# shared library objects and the configuration files on the root partition
-# in /lib and /etc.
-case "$prefix" in
-/usr | /usr/)
-  # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
-  # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
-  # and libc_cv_localedir.
-  test -n "$libc_cv_slibdir" || \
-  case $machine in
-  sparc/sparc64 | x86_64* | powerpc/powerpc64 | s390/s390-64)
-    libc_cv_slibdir="/lib64"
-    if test "$libdir" = '${exec_prefix}/lib'; then
-      libdir='${exec_prefix}/lib64';
-      # Locale data can be shared between 32bit and 64bit libraries
-      libc_cv_localedir='${exec_prefix}/lib/locale'
-    fi
-    ;;
-  *)
-    libc_cv_slibdir="/lib"
-    ;;
-  esac
-  # Allow the user to override the path with --sysconfdir
-  if test $sysconfdir = '${prefix}/etc'; then
-    libc_cv_sysconfdir=/etc
-  else
-    libc_cv_sysconfdir=$sysconfdir
-   fi
-  libc_cv_rootsbindir="/sbin"
-  ;;
-esac
 
 # Under Linux the NPTL add-on should be available.
 case $add_ons in

sysdeps/unix/sysv/linux/configure.in

@@ -121,38 +121,6 @@ fi
 if test -n "$sysheaders"; then
   CPPFLAGS=$OLD_CPPFLAGS
 fi
-# The Linux filesystem standard prescribes where to place "essential"
-# files.  I.e., when the installation prefix is "/usr" we have to place
-# shared library objects and the configuration files on the root partition
-# in /lib and /etc.
-case "$prefix" in
-/usr | /usr/)
-  # 64-bit libraries on bi-arch platforms go in /lib64 instead of /lib.
-  # Allow earlier configure scripts to handle libc_cv_slibdir, libdir,
-  # and libc_cv_localedir.
-  test -n "$libc_cv_slibdir" || \
-  case $machine in
-  sparc/sparc64 | x86_64* | powerpc/powerpc64 | s390/s390-64)
-    libc_cv_slibdir="/lib64"
-    if test "$libdir" = '${exec_prefix}/lib'; then
-      libdir='${exec_prefix}/lib64';
-      # Locale data can be shared between 32bit and 64bit libraries
-      libc_cv_localedir='${exec_prefix}/lib/locale'
-    fi
-    ;;
-  *)
-    libc_cv_slibdir="/lib"
-    ;;
-  esac
-  # Allow the user to override the path with --sysconfdir
-  if test $sysconfdir = '${prefix}/etc'; then
-    libc_cv_sysconfdir=/etc
-  else
-    libc_cv_sysconfdir=$sysconfdir
-   fi
-  libc_cv_rootsbindir="/sbin"
-  ;;
-esac
 
 # Under Linux the NPTL add-on should be available.
 case $add_ons in