[Bug libstdc++/85442] [8 Regression] cxx11-ios_failure.lo build fails for microblaze

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=85442

--- Comment #2 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Can be reproduced even on x86_64-linux with
CXXFLAGS='-g -O2 -D_GNU_SOURCE -gno-as-loc-support'
cxx11-ios_failure-lt.s: Assembler messages:
cxx11-ios_failure-lt.s: Fatal error: duplicate .debug_line sections
make: *** [Makefile:766: cxx11-ios_failure.lo] Error 1

Otherwise it just creates duplicate debug info.