"linux-aout", "gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:$x86_out_asm",
"linux-mips", "gcc:-DL_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall:(unknown)::BN_LLONG:::",
"linux-ppc", "gcc:-DB_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall:(unknown)::::",
+"linux-sparc","gcc:-DB_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -Wall:-D_REENTRANT::BN_LLONG RC4_CHAR DES_UNROLL BF_PTR::",
+"linux-sparc64","gcc:-DB_ENDIAN -DTERMIO -O3 -fomit-frame-pointer -mv8 -Wall:-D_REENTRANT:::::",
"NetBSD-sparc", "gcc:-DTERMIOS -O3 -fomit-frame-pointer -mv8 -Wall -DB_ENDIAN:(unknown)::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL:::",
"NetBSD-m68", "gcc:-DTERMIOS -O3 -fomit-frame-pointer -Wall -DB_ENDIAN:(unknown)::BN_LLONG MD2_CHAR RC4_INDEX DES_UNROLL:::",
"NetBSD-x86", "gcc:-DTERMIOS -D_ANSI_SOURCE -O3 -fomit-frame-pointer -m486 -Wall:(unknown)::BN_LLONG $x86_gcc_des $x86_gcc_opts:",
"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}:::",
"SINIX","cc:-O -DSNI:(unknown):-lsocket -lnsl -lc -L/usr/ucblib -lucb:RC4_INDEX RC4_CHAR:::",
"SINIX-N","/usr/ucb/cc:-O2 -misaligned:(unknown):-lucb:RC4_INDEX RC4_CHAR:::",
+# SIEMENS BS2000/OSD: an EBCDIC-based mainframe
+"BS2000-OSD","c89:-XLLML -XLLMK -XL -DB_ENDIAN -DTERMIOS -DCHARSET_EBCDIC:-lsocket -lnsl:THIRTY_TWO_BIT DES_PTR DES_UNROLL MD2_CHAR RC4_INDEX RC4_CHAR BF_PTR:::",
+
# Windows NT, Microsoft Visual C++ 4.0
"VC-NT","cl::(unknown)::BN_LLONG RC4_INDEX ${x86_gcc_opts}:::",