"FreeBSD-elf", "gcc:-DTERMIOS -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
"bsdi-gcc", "gcc:-O3 -ffast-math -DL_ENDIAN -DPERL5 -m486:(unknown)::RSA_LLONG $x86_gcc_des $x86_gcc_opts:$x86_bsdi_asm",
"bsdi-elf-gcc", "gcc:-DPERL5 -DL_ENDIAN -fomit-frame-pointer -O3 -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_elf_asm",
-"nextstep", "cc:-O3 -Wall:(unknown)::BN_LLONG $x86_gcc_des ${x86_gcc_opts}:::",
+# Mark Crispin advises against using -O3 on NeXTstep ...
+# "nextstep", "cc:-O3 -Wall:(unknown)::BN_LLONG $x86_gcc_des ${x86_gcc_opts}:::",
+"nextstep", "cc:-O -Wall:(unknown)::BN_LLONG $x86_gcc_des ${x86_gcc_opts}:::",
# NCR MP-RAS UNIX ver 02.03.01
"ncr-scde","cc:-O6 -Xa -Hoff=BEHAVED -686 -Hwide -Hiw:(unknown):-lsocket -lnsl:$x86_gcc_des ${x86_gcc_opts}:::",