From: Jonathan Wakely <jwakely@redhat.com>
Date: Wed, 16 Aug 2023 17:34:59 +0000 (+0100)
Subject: libstdc++: Make --enable-libstdcxx-backtrace=auto default to yes
X-Git-Tag: basepoints/gcc-15~6524
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=fcede95472ceb4b63d0c131ed2f98bd79e0e360d;p=thirdparty%2Fgcc.git

libstdc++: Make --enable-libstdcxx-backtrace=auto default to yes

This causes libstdc++_libbacktrace.a to be built by default. This might
fail on some targets, in which case we can make the 'auto' choice expand
to either 'yes' or 'no' depending on the target.

libstdc++-v3/ChangeLog:

	* acinclude.m4 (GLIBCXX_ENABLE_BACKTRACE): Default to yes.
	* configure: Regenerate.
---

diff --git a/libstdc++-v3/acinclude.m4 b/libstdc++-v3/acinclude.m4
index b25378eaacec..50c808c6b2d6 100644
--- a/libstdc++-v3/acinclude.m4
+++ b/libstdc++-v3/acinclude.m4
@@ -5481,7 +5481,7 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
 
   AC_MSG_CHECKING([whether to build libbacktrace support])
   if test "$enable_libstdcxx_backtrace" = "auto"; then
-    enable_libstdcxx_backtrace=no
+    enable_libstdcxx_backtrace=yes
   fi
   AC_MSG_RESULT($enable_libstdcxx_backtrace)
   if test "$enable_libstdcxx_backtrace" = "yes"; then
diff --git a/libstdc++-v3/configure b/libstdc++-v3/configure
index c4da56c3042f..db1932300c01 100755
--- a/libstdc++-v3/configure
+++ b/libstdc++-v3/configure
@@ -73156,7 +73156,7 @@ BACKTRACE_CPPFLAGS="$BACKTRACE_CPPFLAGS -DBACKTRACE_ELF_SIZE=$elfsize"
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build libbacktrace support" >&5
 $as_echo_n "checking whether to build libbacktrace support... " >&6; }
   if test "$enable_libstdcxx_backtrace" = "auto"; then
-    enable_libstdcxx_backtrace=no
+    enable_libstdcxx_backtrace=yes
   fi
   { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_libstdcxx_backtrace" >&5
 $as_echo "$enable_libstdcxx_backtrace" >&6; }