[Bug other/91177] New: Installation Error on Centos 6

[John.Parke at alebra dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91177

            Bug ID: 91177
           Summary: Installation Error on Centos 6
           Product: gcc
           Version: 9.1.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: other
          Assignee: unassigned at gcc dot gnu.org
          Reporter: John.Parke at alebra dot com
  Target Milestone: ---

Created attachment 46601
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46601&action=edit
Output of make

I'm trying to build gcc-9.1.0 on CentOS release 6.10. Currently have gcc
version 6.3.1 20170216 (Red Hat 6.3.1-3).

I am getting many error messages in libcpp:

gmake[3]: Entering directory '/usr/gccobj/build-x86_64-pc-linux-gnu/libcpp'
/usr/local/bin/gcc -std=gnu++98  -I../../../gcc-9.1.0/libcpp -I.
-I../../../gcc-9.1.0/libcpp/../include -I../../../gcc-9.1.0/libcpp/include  -g
-O2 -W -Wall -Wno-narrowing -Wwrite-strings -Wmissing-format-attribute
-pedantic -Wno-long-long  -fno-exceptions -fno-rtti -I../../../gcc-9.1.0/libcpp
-I. -I../../../gcc-9.1.0/libcpp/../include -I../../../gcc-9.1.0/libcpp/include 
 -c -o charset.o -MT charset.o -MMD -MP -MF .deps/charset.Tpo
../../../gcc-9.1.0/libcpp/charset.c
cc1: warning: command line option ‘-std=gnu++98’ is valid for C++/ObjC++ but
not for C
cc1: warning: command line option ‘-fno-rtti’ is valid for C++/ObjC++ but not
for C
In file included from ../../../gcc-9.1.0/libcpp/include/cpplib.h:27:0,
                 from ../../../gcc-9.1.0/libcpp/charset.c:22:
../../../gcc-9.1.0/libcpp/include/line-map.h:329:3: error: expected
specifier-qualifier-list before ‘static’
   static source_range from_location (location_t loc)

Configuration:

../gcc-9.1.0/configure -enable-languages=c,c++  --disable-multilib

Any help would be greatly appreciated.

John