https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98708
--- Comment #16 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
And the temporary workaround could be
--- libstdc++-v3/src/c++11/Makefile.am.jj 2021-01-04 10:26:02.067970728
+0100
+++ libstdc++-v3/src/c++11/Makefile.am 2021-01-17 17:20:58.580262364 +0100
@@ -141,12 +141,12 @@ if ENABLE_DUAL_ABI
rewrite_ios_failure_typeinfo = sed -e
'/^_*_ZTISt13__ios_failure:/,/_ZTVN10__cxxabiv120__si_class_type_infoE/s/_ZTVN10__cxxabiv120__si_class_type_infoE/_ZTVSt19__iosfail_type_info/'
cxx11-ios_failure-lt.s: cxx11-ios_failure.cc
- $(LTCXXCOMPILE) -S $< -o tmp-cxx11-ios_failure-lt.s
+ $(LTCXXCOMPILE) -gno-as-loc-support -S $< -o tmp-cxx11-ios_failure-lt.s
-test -f tmp-cxx11-ios_failure-lt.o && mv -f tmp-cxx11-ios_failure-lt.o
tmp-cxx11-ios_failure-lt.s
$(rewrite_ios_failure_typeinfo) tmp-$@ > $@
-rm -f tmp-$@
cxx11-ios_failure.s: cxx11-ios_failure.cc
- $(CXXCOMPILE) -S $< -o tmp-$@
+ $(CXXCOMPILE) -gno-as-loc-support -S $< -o tmp-$@
$(rewrite_ios_failure_typeinfo) tmp-$@ > $@
-rm -f tmp-$@
--- libstdc++-v3/src/c++11/Makefile.in.jj 2020-12-17 02:29:28.734557483
+0100
+++ libstdc++-v3/src/c++11/Makefile.in 2021-01-17 17:21:27.510931383 +0100
@@ -852,12 +852,12 @@ limits.o: limits.cc
$(CXXCOMPILE) -fchar8_t -c $<
@ENABLE_DUAL_ABI_TRUE@cxx11-ios_failure-lt.s: cxx11-ios_failure.cc
-@ENABLE_DUAL_ABI_TRUE@ $(LTCXXCOMPILE) -S $< -o tmp-cxx11-ios_failure-lt.s
+@ENABLE_DUAL_ABI_TRUE@ $(LTCXXCOMPILE) -gno-as-loc-support -S $< -o
tmp-cxx11-ios_failure-lt.s
@ENABLE_DUAL_ABI_TRUE@ -test -f tmp-cxx11-ios_failure-lt.o && mv -f
tmp-cxx11-ios_failure-lt.o tmp-cxx11-ios_failure-lt.s
@ENABLE_DUAL_ABI_TRUE@ $(rewrite_ios_failure_typeinfo) tmp-$@ > $@
@ENABLE_DUAL_ABI_TRUE@ -rm -f tmp-$@
@ENABLE_DUAL_ABI_TRUE@cxx11-ios_failure.s: cxx11-ios_failure.cc
-@ENABLE_DUAL_ABI_TRUE@ $(CXXCOMPILE) -S $< -o tmp-$@
+@ENABLE_DUAL_ABI_TRUE@ $(CXXCOMPILE) -gno-as-loc-support -S $< -o tmp-$@
@ENABLE_DUAL_ABI_TRUE@ $(rewrite_ios_failure_typeinfo) tmp-$@ > $@
@ENABLE_DUAL_ABI_TRUE@ -rm -f tmp-$@
