/opt/gnu にバイナリ配布の gcc をインストールしておく unsetenv LANG setenv PATH /usr/ccs/bin:/opt/gnu/bin:$PATH ./configure --prefix=/usr/local/sol2 ( make CC=gcc CFLAGS="-O"; make stage1; make CC="stage1/xgcc -Bstage1/" \ CFLAGS="-O"; make stage2; make CC="stage2/xgcc -Bstage2/" \ CFLAGS="-O"; make compare ) >& make.log