[Bug libstdc++/90045] New: [9 Regression] fails to build a rx-elf cross toolchain with C++ enabled

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90045

            Bug ID: 90045
           Summary: [9 Regression] fails to build a rx-elf cross toolchain
                    with C++ enabled
           Product: gcc
           Version: 9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
  Target Milestone: ---

[   88s] + ../configure --prefix=/usr --infodir=/usr/share/info
--mandir=/usr/share/man --libdir=/usr/lib64 --libexecdir=/usr/lib64
--enable-languages=c,c++ --disable-werror
--with-gxx-include-dir=/usr/include/c++/9 --enable-ssp --disable-libssp
--disable-libvtv --disable-cet --disable-libcc1 --disable-plugin
--with-bugurl=https://bugs.opensuse.org/ '--with-pkgversion=SUSE Linux'
--with-slibdir=/lib64 --with-system-zlib --enable-libstdcxx-allocator=new
--disable-libstdcxx-pch --enable-version-specific-runtime-libs
--with-gcc-major-version-only --enable-linker-build-id --enable-linux-futex
--enable-gnu-indirect-function --program-suffix=-9 --program-prefix=rx-elf-
--target=rx-elf --disable-nls --with-sysroot=/usr/rx-elf/sys-root
--with-build-sysroot=/usr/rx-elf/sys-root
--with-build-time-tools=/usr/rx-elf/bin --with-newlib --build=x86_64-suse-linux
--host=x86_64-suse-linux
...

[ 1779s] libtool: compile: 
/home/abuild/rpmbuild/BUILD/gcc-9.0.1+r270275/obj-x8
6_64-suse-linux/./gcc/xgcc -shared-libgcc
-B/home/abuild/rpmbuild/BUILD/gcc-9.0.
1+r270275/obj-x86_64-suse-linux/./gcc -nostdinc++
-L/home/abuild/rpmbuild/BUILD/
gcc-9.0.1+r270275/obj-x86_64-suse-linux/rx-elf/libstdc++-v3/src
-L/home/abuild/r
pmbuild/BUILD/gcc-9.0.1+r270275/obj-x86_64-suse-linux/rx-elf/libstdc++-v3/src/.l
ibs
-L/home/abuild/rpmbuild/BUILD/gcc-9.0.1+r270275/obj-x86_64-suse-linux/rx-elf
/libstdc++-v3/libsupc++/.libs -B/usr/rx-elf/bin/ -B/usr/rx-elf/lib/ -isystem
/us
r/rx-elf/include -isystem /usr/rx-elf/sys-include
--sysroot=/usr/rx-elf/sys-root
 -I/home/abuild/rpmbuild/BUILD/gcc-9.0.1+r270275/libstdc++-v3/../libgcc
-I/home/
abuild/rpmbuild/BUILD/gcc-9.0.1+r270275/obj-x86_64-suse-linux/rx-elf/libstdc++-v
3/include/rx-elf
-I/home/abuild/rpmbuild/BUILD/gcc-9.0.1+r270275/obj-x86_64-suse
-linux/rx-elf/libstdc++-v3/include
-I/home/abuild/rpmbuild/BUILD/gcc-9.0.1+r2702
75/libstdc++-v3/libsupc++ -std=gnu++98 -fno-implicit-templates -Wall -Wextra
-Ww
rite-strings -Wcast-qual -Wabi=2 -fdiagnostics-show-location=once
-frandom-seed=
valarray.lo -g -O2 -c ../../../../../libstdc++-v3/src/c++98/valarray.cc -o
valar
ray.o
[ 1779s] /tmp/cceTRmfA.s: Assembler messages:
[ 1779s] /tmp/cceTRmfA.s: Fatal error: Infinite loop encountered whilst
attempti
ng to compute the addresses of symbols in section
.text._ZSt15__valarray_copyImEvPKT_mPS0_
[ 1779s] make[5]: *** [Makefile:646: valarray.lo] Error 1