re PR libstdc++/45711 (Building with "--enable-libstdcxx-debug" fails during install)

Fix PR libstdc++/45711.

libstdc++-v3/:
	PR libstdc++/45711
	* src/Makefile.am (stamp-debug): Also adjust possibly-relative
	file names in MKDIR_P, and, for consistency, also top_build_prefix.
	* src/Makefile.in: Regenerate.

From-SVN: r164451

libstdc++-v3/ChangeLog

+2010-09-20  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
+
+	PR libstdc++/45711
+	* src/Makefile.am (stamp-debug): Also adjust possibly-relative
+	file names in MKDIR_P, and, for consistency, also top_build_prefix.
+	* src/Makefile.in: Regenerate.
+
 2010-09-19  Ralf Wildenhues  <Ralf.Wildenhues@gmx.de>
 
 	* include/ext/throw_allocator.h

libstdc++-v3/src/Makefile.am

@@ -421,13 +421,16 @@ endif
 debugdir = debug
 
 # Build a set of debug objects here.
+# Take care to fix all possibly-relative paths.
 stamp-debug:
 	if test ! -d ${debugdir}; then \
 	  mkdir -p ${debugdir}; \
 	  (cd ${debugdir}; \
 	  sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
+	      -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 	      -e 's/srcdir = \.\./srcdir = ..\/../' \
 	      -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
+	      -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 	      -e 's/all-local: build_debug/all-local:/' \
 	      -e 's/install-data-local: install_debug/install-data-local:/' \
 	  < ../Makefile > Makefile) ; \

libstdc++-v3/src/Makefile.in

@@ -946,13 +946,16 @@ future.o: future.cc
 @GLIBCXX_BUILD_DEBUG_FALSE@install-data-local:
 
 # Build a set of debug objects here.
+# Take care to fix all possibly-relative paths.
 stamp-debug:
 	if test ! -d ${debugdir}; then \
 	  mkdir -p ${debugdir}; \
 	  (cd ${debugdir}; \
 	  sed -e 's/top_builddir = \.\./top_builddir = ..\/../' \
+	      -e 's/top_build_prefix = \.\./top_build_prefix = ..\/../' \
 	      -e 's/srcdir = \.\./srcdir = ..\/../' \
 	      -e 's/glibcxx_basedir = \.\./glibcxx_basedir = ..\/../' \
+	      -e 's/MKDIR_P = \.\./MKDIR_P = ..\/../' \
 	      -e 's/all-local: build_debug/all-local:/' \
 	      -e 's/install-data-local: install_debug/install-data-local:/' \
 	  < ../Makefile > Makefile) ; \