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80 lines
2.8 KiB
C
80 lines
2.8 KiB
C
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/* External interfaces usable by dynamic objects loaded into GNU Make.
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--THIS API IS A "TECHNOLOGY PREVIEW" ONLY. IT IS NOT A STABLE INTERFACE--
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Copyright (C) 2013-2014 Free Software Foundation, Inc.
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This file is part of GNU Make.
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GNU Make is free software; you can redistribute it and/or modify it under the
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terms of the GNU General Public License as published by the Free Software
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Foundation; either version 3 of the License, or (at your option) any later
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version.
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GNU Make is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
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A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef _GNUMAKE_H_
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#define _GNUMAKE_H_
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/* Specify the location of elements read from makefiles. */
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typedef struct
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{
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const char *filenm;
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unsigned long lineno;
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} gmk_floc;
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typedef char *(*gmk_func_ptr)(const char *nm, unsigned int argc, char **argv);
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#ifdef _WIN32
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# ifdef GMK_BUILDING_MAKE
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# define GMK_EXPORT __declspec(dllexport)
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# else
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# define GMK_EXPORT __declspec(dllimport)
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# endif
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#else
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# define GMK_EXPORT
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#endif
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/* Free memory returned by the gmk_expand() function. */
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GMK_EXPORT void gmk_free (char *str);
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/* Allocate memory in GNU make's context. */
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GMK_EXPORT char *gmk_alloc (unsigned int len);
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/* Run $(eval ...) on the provided string BUFFER. */
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GMK_EXPORT void gmk_eval (const char *buffer, const gmk_floc *floc);
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/* Run GNU make expansion on the provided string STR.
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Returns an allocated buffer that the caller must free with gmk_free(). */
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GMK_EXPORT char *gmk_expand (const char *str);
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/* Register a new GNU make function NAME (maximum of 255 chars long).
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When the function is expanded in the makefile, FUNC will be invoked with
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the appropriate arguments.
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The return value of FUNC must be either NULL, in which case it expands to
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the empty string, or a pointer to the result of the expansion in a string
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created by gmk_alloc(). GNU make will free the memory when it's done.
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MIN_ARGS is the minimum number of arguments the function requires.
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MAX_ARGS is the maximum number of arguments (or 0 if there's no maximum).
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MIN_ARGS and MAX_ARGS may not exceed 255.
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The FLAGS value may be GMK_FUNC_DEFAULT, or one or more of the following
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flags OR'd together:
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GMK_FUNC_NOEXPAND: the arguments to the function will be not be expanded
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before FUNC is called.
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*/
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GMK_EXPORT void gmk_add_function (const char *name, gmk_func_ptr func,
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unsigned int min_args, unsigned int max_args,
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unsigned int flags);
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#define GMK_FUNC_DEFAULT 0x00
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#define GMK_FUNC_NOEXPAND 0x01
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#endif /* _GNUMAKE_H_ */
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