[Bug libstdc++/96240] New: Error in building gcc-11 with --disable-shared

[570070308 at qq dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96240

            Bug ID: 96240
           Summary: Error in building gcc-11 with --disable-shared
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libstdc++
          Assignee: unassigned at gcc dot gnu.org
          Reporter: 570070308 at qq dot com
  Target Milestone: ---

Created attachment 48892
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=48892&action=edit
The full log file

Successfully build gcc-11-20200705 and gcc-11-20200712 without --disable-shared
or with --enabled-shared.
Failed to build gcc-11-20200705 and gcc-11-20200712 with --disable-shared.

My system is Ubuntu 20.10. Host gcc is gcc9.3 .

The configure command is:
../gcc-11-20200712/configure -v
--enable-languages=c,ada,c++,go,brig,d,fortran,objc,obj-c++,lto
--prefix=/home/ig/temp2 --with-gcc-major-version-only --program-suffix=-11
--program-prefix=x86_64-linux-gnu- (--disable-shared or --enabled-shared)
--enable-linker-build-id --without-included-gettext --enable-threads=posix
--enable-nls --enable-clocale=gnu --enable-libstdcxx-time=yes
--with-default-libstdcxx-abi=new --enable-gnu-unique-object
--disable-vtable-verify --enable-plugin --enable-default-pie --with-system-zlib
--enable-libphobos-checking=release --with-target-system-zlib=auto
--enable-objc-gc=auto --enable-multiarch --disable-werror --with-arch-32=i686
--with-abi=m64 --with-multilib-list=m32,m64,mx32 --enable-multilib
--with-tune=generic --enable-offload-targets=nvptx-none,amdgcn-amdhsa,hsa
--without-cuda-driver --enable-checking=release --build=x86_64-linux-gnu
--host=x86_64-linux-gnu --target=x86_64-linux-gnu

Part of the error log:
/usr/bin/x86_64-linux-gnu-ld:
/home/ig/temp/x86_64-linux-gnu/libstdc++-v3/src/.libs/libstdc++.a(eh_aux_runtime.o):
relocation R_X86_64_PC32 against symbol `_ZTISt8bad_cast' can not be used when
making a shared object; recompile with -fPIC
/usr/bin/x86_64-linux-gnu-ld: final link failed: bad value
make[9]: Nothing to be done for 'all'.
make[9]: Leaving directory
'/home/ig/temp/x86_64-linux-gnu/32/libstdc++-v3/src/c++11'
Making all in c++17
collect2: error: ld returned 1 exit status
make[3]: *** [Makefile:561: libcc1.la] Error 1

The full error log see the attachment I uploaded.