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diff --git a/mcon/U/prototype.U b/mcon/U/prototype.U new file mode 100644 index 0000000..ec65247 --- /dev/null +++ b/mcon/U/prototype.U @@ -0,0 +1,118 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic Licence; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: $Log: prototype.U,v $ +?RCS: Revision 3.0.1.3 1994/05/06 15:11:49 ram +?RCS: patch23: ensure cc flags used when looking for prototype support +?RCS: +?RCS: Revision 3.0.1.2 1994/01/24 14:15:36 ram +?RCS: patch16: prototype handling macros now appear only when needed +?RCS: +?RCS: Revision 3.0.1.1 1993/08/25 14:03:12 ram +?RCS: patch6: defines were referring to non-existent VOID symbol +?RCS: +?RCS: Revision 3.0 1993/08/18 12:09:36 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:prototype: Myread Oldconfig cat +cc +ccflags rm Setvar +?MAKE: -pick add $@ %< +?S:prototype: +?S: This variable holds the eventual value of CAN_PROTOTYPE, which +?S: indicates the C compiler can handle funciton prototypes. +?S:. +?C:CAN_PROTOTYPE ~ %<: +?C: If defined, this macro indicates that the C compiler can handle +?C: function prototypes. +?C:. +?C:DOTS: +?C: This macro is used to specify the ... in function prototypes which +?C: have arbitrary additional arguments. +?C:. +?C:NXT_ARG: +?C: This macro is used to separate arguments in the declared argument list. +?C:. +?C:P_FUNC: +?C: This macro is used to declare "private" (static) functions. +?C: It takes three arguments: the function type and name, a parenthesized +?C: traditional (comma separated) argument list, and the declared argument +?C: list (in which arguments are separated with NXT_ARG, and additional +?C: arbitrary arguments are specified with DOTS). For example: +?C: +?C: P_FUNC(int foo, (bar, baz), int bar NXT_ARG char *baz[]) +?C:. +?C:P_FUNC_VOID: +?C: This macro is used to declare "private" (static) functions that have +?C: no arguments. The macro takes one argument: the function type and name. +?C: For example: +?C: +?C: P_FUNC_VOID(int subr) +?C:. +?C:V_FUNC: +?C: This macro is used to declare "public" (non-static) functions. +?C: It takes three arguments: the function type and name, a parenthesized +?C: traditional (comma separated) argument list, and the declared argument +?C: list (in which arguments are separated with NXT_ARG, and additional +?C: arbitrary arguments are specified with DOTS). For example: +?C: +?C: V_FUNC(int main, (argc, argv), int argc NXT_ARG char *argv[]) +?C:. +?C:V_FUNC_VOID: +?C: This macro is used to declare "public" (non-static) functions that have +?C: no arguments. The macro takes one argument: the function type and name. +?C: For example: +?C: +?C: V_FUNC_VOID(int fork) +?C:. +?C:_ (P): +?C: This macro is used to declare function parameters for folks who want +?C: to make declarations with prototypes using a different style than +?C: the above macros. Use double parentheses. For example: +?C: +?C: int main _((int argc, char *argv[])); +?C:. +?H:?%<:#$prototype CAN_PROTOTYPE /**/ +?H:?%<:#ifdef CAN_PROTOTYPE +?H:?NXT_ARG:#define NXT_ARG , +?H:?DOTS:#define DOTS , ... +?H:?V_FUNC:#define V_FUNC(name, arglist, args)name(args) +?H:?P_FUNC:#define P_FUNC(name, arglist, args)static name(args) +?H:?V_FUNC_VOID:#define V_FUNC_VOID(name)name(void) +?H:?P_FUNC_VOID:#define P_FUNC_VOID(name)static name(void) +?H:?_:#define _(args) args +?H:?%<:#else +?H:?NXT_ARG:#define NXT_ARG ; +?H:?DOTS:#define DOTS +?H:?V_FUNC:#define V_FUNC(name, arglist, args)name arglist args; +?H:?P_FUNC:#define P_FUNC(name, arglist, args)static name arglist args; +?H:?V_FUNC_VOID:#define V_FUNC_VOID(name)name() +?H:?P_FUNC_VOID:#define P_FUNC_VOID(name)static name() +?H:?_:#define _(args) () +?H:?%<:#endif +?H:. +?W:%<:NXT_ARG DOTS V_FUNC P_FUNC V_FUNC_VOID P_FUNC_VOID _ +?LINT:set prototype +: Cruising for prototypes +echo " " +echo "Checking out function prototypes..." >&4 +$cat >prototype.c <<'EOCP' +int main(int argc, char *argv[]) { + exit(0);} +EOCP +if $cc $ccflags -c prototype.c >prototype.out 2>&1 ; then + echo "Your C compiler appears to support function prototypes." + val="$define" +else + echo "Your C compiler doesn't seem to understand function prototypes." + val="$undef" +fi +set prototype +eval $setvar +$rm -f prototype* + |