This change breaks installation on baremetal targets, so whilst the cause is
investigated revert the commit.

Upstream-Status: Inappropriate
Signed-off-by: Ross Burton <ross.burton@arm.com>

From 8ec52bd0ba2141ef0bcc6f93e26a23d662b40f78 Mon Sep 17 00:00:00 2001
From: Ross Burton <ross.burton@arm.com>
Date: Wed, 26 May 2021 19:54:29 +0100
Subject: [PATCH] Revert "libstdc++: Install libstdc++*-gdb.py more robustly
 [PR 99453]"

This reverts commit dbb87d6a9c37c8eca80d77782717a8144515c16d.
---
 libstdc++-v3/python/Makefile.am | 20 ++++++++++++++++----
 libstdc++-v3/python/Makefile.in | 14 ++++++++++++--
 2 files changed, 28 insertions(+), 6 deletions(-)

diff --git a/libstdc++-v3/python/Makefile.am b/libstdc++-v3/python/Makefile.am
index 0c2b207b86e..01517a2a522 100644
--- a/libstdc++-v3/python/Makefile.am
+++ b/libstdc++-v3/python/Makefile.am
@@ -44,9 +44,21 @@ gdb.py: hook.in Makefile
 install-data-local: gdb.py
 	@$(mkdir_p) $(DESTDIR)$(toolexeclibdir)
 ## We want to install gdb.py as SOMETHING-gdb.py.  SOMETHING is the
-## full name of the final library.  We use the libtool .la file to get
-## the correct name.
-	@libname=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
-	          $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
+## full name of the final library.  We want to ignore symlinks, the
+## .la file, and any previous -gdb.py file.  This is inherently
+## fragile, but there does not seem to be a better option, because
+## libtool hides the real names from us.
+	@here=`pwd`; cd $(DESTDIR)$(toolexeclibdir); \
+	  for file in libstdc++.*; do \
+	    case $$file in \
+	      *-gdb.py) ;; \
+	      *.la) ;; \
+	      *) if test -h $$file; then \
+	           continue; \
+	         fi; \
+	         libname=$$file;; \
+	    esac; \
+	  done; \
+	cd $$here; \
 	echo " $(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py"; \
 	$(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py
diff --git a/libstdc++-v3/python/Makefile.in b/libstdc++-v3/python/Makefile.in
index 2efe0b96a19..c35dbe55961 100644
--- a/libstdc++-v3/python/Makefile.in
+++ b/libstdc++-v3/python/Makefile.in
@@ -607,8 +607,18 @@ gdb.py: hook.in Makefile
 
 install-data-local: gdb.py
 	@$(mkdir_p) $(DESTDIR)$(toolexeclibdir)
-	@libname=`sed -ne "/^library_names=/{s/.*='//;s/'$$//;s/ .*//;p;}" \
-	          $(DESTDIR)$(toolexeclibdir)/libstdc++.la`; \
+	@here=`pwd`; cd $(DESTDIR)$(toolexeclibdir); \
+	  for file in libstdc++.*; do \
+	    case $$file in \
+	      *-gdb.py) ;; \
+	      *.la) ;; \
+	      *) if test -h $$file; then \
+	           continue; \
+	         fi; \
+	         libname=$$file;; \
+	    esac; \
+	  done; \
+	cd $$here; \
 	echo " $(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py"; \
 	$(INSTALL_DATA) gdb.py $(DESTDIR)$(toolexeclibdir)/$$libname-gdb.py
 
-- 
2.25.1