Gm2-11.1.0-20210430 on NetBSD/Sparc woes

[john o goyo]

I installed NetBSD on my SB2000 (because Linux does not run well on this 
machine) and tried to build gm2-20210430.  I am able to build gcc-11.1.0 
on this machine with the resident gcc-9.2.0.

Here is my configuration script for gm2:

#---------------------------------------------
GM2DATE=20210430
GCCVER=11.1.0

rm -rf gm2-$GCCVER-$GM2DATE
mkdir gm2-$GCCVER-$GM2DATE
cd gm2-$GCCVER-$GM2DATE

CONFIG_SHELL=/usr/pkg/bin/bash \
../../src/gcc-$GCCVER+gm2-$GM2DATE/configure \
--prefix=$HOME/gm2/$GCCVER \
--with-mpc-include=/usr/pkg/include \
--with-mpc-lib=/usr/pkg/lib \
--with-gmp-include=/usr/pkg/include \
--with-gmp-lib=/usr/pkg/lib \
--enable-languages=c,c++,m2 \
--disable-bootstrap --enable-checking \
--enable-shared --disable-libitm \
--enable-threads=posix
#---------------------------------------------

The build stops with some rather odd errors:

(1) save_switch() not declared in gm2spec.c:

../../../src/gcc-11.1.0+gm2-20210430/gcc/m2/gm2spec.c: In function 'void 
fe_generate_option(size_t, const char*, bool)':
../../../src/gcc-11.1.0+gm2-20210430/gcc/m2/gm2spec.c:209:5: error:
'save_switch' was not declared in this scope

I found save_switch() declared as static void in gcc.c.

(2) xputenv() not declared in gm2spec.c:

../../../src/gcc-11.1.0+gm2-20210430/gcc/m2/gm2spec.c: In function 'void 
build_path(const char*)':
../../../src/gcc-11.1.0+gm2-20210430/gcc/m2/gm2spec.c:799:3: error: 
'xputenv' was not declared in this scope

I found xputenv() declared as static void in gcc.c

(3) allow_linker not declared in gm2spec.c:

../../../src/gcc-11.1.0+gm2-20210430/gcc/m2/gm2spec.c:1497:3: error: 
'allow_linker' was not declared in this scope

I could not find a declaration of allow_linker anywhere.


Assistance is requested.

Sincerely,
john