[gcc r13-5712] libstdc++: Disable building additional archives for freestanding

[Jonathan Wakely <redi@gcc.gnu.org>]

https://gcc.gnu.org/g:fb8e29a5fd9cee09110a3a70c2b3645670ab65ee

commit r13-5712-gfb8e29a5fd9cee09110a3a70c2b3645670ab65ee
Author: Jonathan Wakely <jwakely@redhat.com>
Date:   Sat Feb 4 00:28:24 2023 +0000

    libstdc++: Disable building additional archives for freestanding
    
    This doesn't have any effect yet as we never build anything under
    libstdc++-v3/src for freestanding, but that will change in the next
    commit.
    
    libstdc++-v3/ChangeLog:
    
            * src/Makefile.am [GLIBCXX_HOSTED] (SUBDIRS): Do not add
            filesystem, libbacktrace and experimental.
            * src/Makefile.in: Regenerate.

Diff:
---
 libstdc++-v3/src/Makefile.am | 10 +++++++++-
 libstdc++-v3/src/Makefile.in | 14 +++++++++-----
 2 files changed, 18 insertions(+), 6 deletions(-)

diff --git a/libstdc++-v3/src/Makefile.am b/libstdc++-v3/src/Makefile.am
index 53fc3d0a987..97a5363b40a 100644
--- a/libstdc++-v3/src/Makefile.am
+++ b/libstdc++-v3/src/Makefile.am
@@ -22,6 +22,7 @@
 
 include $(top_srcdir)/fragment.am
 
+if GLIBCXX_HOSTED
 if ENABLE_FILESYSTEM_TS
 filesystem_dir = filesystem
 else
@@ -34,8 +35,15 @@ else
 backtrace_dir =
 endif
 
+experimental_dir = experimental
+else
+filesystem_dir =
+backtrace_dir =
+experimental_dir =
+endif
+
 ## Keep this list sync'd with acinclude.m4:GLIBCXX_CONFIGURE.
-SUBDIRS = c++98 c++11 c++17 c++20 $(filesystem_dir) $(backtrace_dir) experimental
+SUBDIRS = c++98 c++11 c++17 c++20 $(filesystem_dir) $(backtrace_dir) $(experimental_dir)
 
 # Cross compiler support.
 if VTV_CYGMIN
diff --git a/libstdc++-v3/src/Makefile.in b/libstdc++-v3/src/Makefile.in
index c556d0dee1b..e38b70df9fb 100644
--- a/libstdc++-v3/src/Makefile.in
+++ b/libstdc++-v3/src/Makefile.in
@@ -482,11 +482,15 @@ WARN_CXXFLAGS = \
 
 # -I/-D flags to pass when compiling.
 AM_CPPFLAGS = $(GLIBCXX_INCLUDES) $(CPPFLAGS)
-@ENABLE_FILESYSTEM_TS_FALSE@filesystem_dir = 
-@ENABLE_FILESYSTEM_TS_TRUE@filesystem_dir = filesystem
-@ENABLE_BACKTRACE_FALSE@backtrace_dir = 
-@ENABLE_BACKTRACE_TRUE@backtrace_dir = libbacktrace
-SUBDIRS = c++98 c++11 c++17 c++20 $(filesystem_dir) $(backtrace_dir) experimental
+@ENABLE_FILESYSTEM_TS_FALSE@@GLIBCXX_HOSTED_TRUE@filesystem_dir = 
+@ENABLE_FILESYSTEM_TS_TRUE@@GLIBCXX_HOSTED_TRUE@filesystem_dir = filesystem
+@GLIBCXX_HOSTED_FALSE@filesystem_dir = 
+@ENABLE_BACKTRACE_FALSE@@GLIBCXX_HOSTED_TRUE@backtrace_dir = 
+@ENABLE_BACKTRACE_TRUE@@GLIBCXX_HOSTED_TRUE@backtrace_dir = libbacktrace
+@GLIBCXX_HOSTED_FALSE@backtrace_dir = 
+@GLIBCXX_HOSTED_FALSE@experimental_dir = 
+@GLIBCXX_HOSTED_TRUE@experimental_dir = experimental
+SUBDIRS = c++98 c++11 c++17 c++20 $(filesystem_dir) $(backtrace_dir) $(experimental_dir)
 @VTV_CYGMIN_FALSE@toolexeclib_LTLIBRARIES = libstdc++.la
 
 # Cross compiler support.