uname -a:
SunOS mintslice 5.11 snv_96 i86pc i386 i86xpv
$ ./configure --prefix=/home/dr146992/local
--with-mpfr=/home/dr146992/local --with-gmp=/home/dr146992/local
...
$ gmake
...
libtool: compile:
/biscuit/mozilla/gcc-4.3.3/host-i386-pc-solaris2.11/gcc/xgcc
-shared-libgcc -B/biscuit/mozilla/gcc-4.3.3/host-i386-pc-solaris2.11/gcc
-nostdinc++
-L/biscuit/mozilla/gcc-4.3.3/i386-pc-solaris2.11/amd64/libstdc++-v3/src
-L/biscuit/mozilla/gcc-4.3.3/i386-pc-solaris2.11/amd64/libstdc++-v3/src/.libs
-B/home/dr146992/local/i386-pc-solaris2.11/bin/
-B/home/dr146992/local/i386-pc-solaris2.11/lib/ -isystem
/home/dr146992/local/i386-pc-solaris2.11/include -isystem
/home/dr146992/local/i386-pc-solaris2.11/sys-include -m64
-I/biscuit/mozilla/gcc-4.3.3/libstdc++-v3/../gcc
-I/biscuit/mozilla/gcc-4.3.3/i386-pc-solaris2.11/amd64/libstdc++-v3/include/i386-pc-solaris2.11
-I/biscuit/mozilla/gcc-4.3.3/i386-pc-solaris2.11/amd64/libstdc++-v3/include
-I/biscuit/mozilla/gcc-4.3.3/libstdc++-v3/libsupc++
-fno-implicit-templates -Wall -Wextra -Wwrite-strings -Wcast-qual
-fdiagnostics-show-location=once -ffunction-sections -fdata-sections -O2
-g -m64 -c ../../../.././libstdc++-v3/libsupc++/array_type_info.cc
-fPIC -DPIC -o array_type_info.o
Assembler: array_type_info.cc
"/var/tmp//ccL5ay8j.s", line 190 : Warning: Illegal subtraction -
symbols from different sections: ".LFB72", ".DOT-4"
"/var/tmp//ccL5ay8j.s", line 199 : Warning: Illegal subtraction -
symbols from different sections: ".LFB71", ".DOT-5"
"/var/tmp//ccL5ay8j.s", line 208 : Warning: Illegal subtraction -
symbols from different sections: ".LFB73", ".DOT-6"
"/var/tmp//ccL5ay8j.s", line 177 : Illegal subtraction - symbols
from different sections: ".LDFCM0", ".DOT-3"
gmake[8]: *** [array_type_info.lo] Error 1
Looks like it will require gas?