# SIEMENS BS2000/OSD: an EBCDIC-based mainframe
"BS2000-OSD","c89:-O -XLLML -XLLMK -XL -DB_ENDIAN -DTERMIOS -DCHARSET_EBCDIC::(unknown)::-lsocket -lnsl:THIRTY_TWO_BIT DES_PTR DES_UNROLL MD2_CHAR RC4_INDEX RC4_CHAR BF_PTR:::",
+# OS/390 Unix an EBCDIC-based Unix system on IBM mainframe
+# You need to compile using the c89.sh wrapper in the tools directory, because the
+# IBM compiler does not like the -L switch after any object modules.
+#
+"OS390-Unix","c89.sh:-O -DB_ENDIAN -DCHARSET_EBCDIC -DNO_SYS_PARAM_H -D_ALL_SOURCE::(unknown):::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::::WINNT::BN_LLONG RC4_INDEX EXPORT_VAR_AS_FN ${x86_gcc_opts}::::::::::win32",