Changed glibc to use an separate 'objdir' per buildloop

- Since we build 32bit libs of glibc by using a second buildloop
  if we build a multilib target, we have to assure that we build
  64 and 32bit libs in separate directories.

base/glibc/glibc.conf

@@ -37,9 +37,13 @@ var_insert GCC_WRAPPER_REMOVE " " "-ffast-math"
 # Disable glibc internal debuging but build debuging and profile
 # code so we can use this glibc to debug other programs.
 
-hook_add preconf 3 "mkdir -p objdir; cd objdir"
+pkg_glibc_preconf(){
+	mkdir -p "$builddir/objdir-$buildloop"
+	cd "$builddir/objdir-$buildloop"
 	configprefix='CFLAGS="$CFLAGS -g -DNDEBUG=1"'
-configscript="../configure"
+	configscript="../$pkg-$ver/configure"
+}
+hook_add preconf 3 "pkg_glibc_preconf"
 
 var_append confopt " " "--with-gnu-binutils --build=${arch_build} --host=${arch_target}"
 
@@ -112,7 +116,7 @@ glibc_prepatch() {
 glibc_postmake()
 {
 	if atstage toolchain; then
-	  cp -v ../include/features.h $root$includedir
+	  cp -v $builddir/$pkg-$ver/include/features.h $root$includedir
 	  mkdir -p $includedir/{bits,gnu}
 	  [ -e $root$includedir/bits/stdio_lim.h ] ||
 	  touch $root$includedir/bits/stdio_lim.h
@@ -128,29 +132,28 @@ glibc_postmake()
 		# install locales
 		#
 		eval $MAKE localedata/install-locales
-		cp ../localedata/SUPPORTED $root/usr/share/i18n/
+		cp $builddir/$pkg-$ver/localedata/SUPPORTED $root/usr/share/i18n/
 
 		if [ "$SDECFG_PKG_GLIBC_TLS" != 1 ]; then
 			# install linuxthread manpages
 			#
 			mkdir -p $root/usr/share/man/man3
 			if [ -f /usr/bin/perl ]; then
-				eval $MAKE -C ../linuxthreads/man \
+				eval $MAKE -C $builddir/$pkg-$ver/linuxthreads/man \
 					MANDIR=$root/usr/share/man/man3 all install
 			fi
 	
 			# copy linuxthreads documentation
 			#
-			cp ../linuxthreads/ChangeLog   $docdir/ChangeLog.threads
+			for x in ChangeLog Changes README FAQ.html Examples; do
-			cp ../linuxthreads/Changes     $docdir/Changes.threads
+				cp -a $builddir/$pkg-$ver/linuxthreads/$x \
-			cp ../linuxthreads/README      $docdir/README.threads
+					$docdir/$x.threads
-			cp ../linuxthreads/FAQ.html    $docdir/FAQ-threads.html
+			done
-			cp -r ../linuxthreads/Examples $docdir/examples.threads
 		fi
 
 		# copy crypt documentation
 		#
-		cp ../crypt/README.ufc-crypt   $docdir/README.crypt
+		cp $builddir/$pkg-$ver/crypt/README.ufc-crypt   $docdir/README.crypt
 		
 		# NSCD Init script and config
 		#