On Jul 21, 2013, at 2:18 PM, Johnny Billquist <bqt at softjar.se> wrote: MIM::DU:[FED] I tried building 'font.c' with PDP-11 C on RSTS, and got: $ cc font.c The following messages pertain to file SY:FONT.C 81: %PDP11C-E-SYN_SYNTAXERROR, Found { when expecting one of { "auto" "char" "const" "double" "enum" "extern" "float" "int" "long" "register" "short" " signed" "static" "struct" "typedef" "union" "unsigned" "void" "volatile" " globaldef" "globalref" "globalvalue" "noshare" "readonly" "variant_struct" "variant_union" "*" "(" identifier typedef-name }. The following messages pertain to the entire compilation %PDP11C-E-SYN_FATALSYNTAX, Fatal syntax error. %PDP11C-I-OGN_NO_OBJ_PRODUCED, No object file produced Message summary: Informational 1 Warning 0 Error 2 Which C was this compiled with? I can install DECUS C if I need to, but normally I use ANSI C because it is newer (1992) and claims to be ansi compliant.