config.h.sh

早期freebsd实现

case $CONFIG in
'')
    if test ! -f config.sh; then
	ln ../config.sh . || \
	ln ../../config.sh . || \
	ln ../../../config.sh . || \
	(echo "Can't find config.sh."; exit 1)
	echo "Using config.sh from above..."
    fi
    . ./config.sh
    ;;
esac
echo "Extracting config.h (with variable substitutions)"
cat <<!GROK!THIS! >config.h
/* config.h
 * This file was produced by running the config.h.SH script, which
 * gets its values from config.sh, which is generally produced by
 * running Configure.
 *
 * Feel free to modify any of this as the need arises.  Note, however,
 * that running config.h.SH again will wipe out any changes you've made.
 * For a more permanent change edit config.sh and rerun config.h.SH.
 */


/* EUNICE:
 *	This symbol, if defined, indicates that the program is being compiled
 *	under the EUNICE package under VMS.  The program will need to handle
 *	things like files that don't go away the first time you unlink them,
 *	due to version numbering.  It will also need to compensate for lack
 *	of a respectable link() command.
 */
/* VMS:
 *	This symbol, if defined, indicates that the program is running under
 *	VMS.  It is currently only set in conjunction with the EUNICE symbol.
 */
#$d_eunice	EUNICE		/**/
#$d_eunice	VMS		/**/

/* CPPSTDIN:
 *	This symbol contains the first part of the string which will invoke
 *	the C preprocessor on the standard input and produce to standard
 *	output.	 Typical value of "cc -E" or "/lib/cpp".
 */
/* CPPMINUS:
 *	This symbol contains the second part of the string which will invoke
 *	the C preprocessor on the standard input and produce to standard
 *	output.  This symbol will have the value "-" if CPPSTDIN needs a minus
 *	to specify standard input, otherwise the value is "".
 */
#define CPPSTDIN "$cppstdin"
#define CPPMINUS "$cppminus"

/* CHARSPRINTF:
 *	This symbol is defined if this system declares "char *sprintf()" in
 *	stdio.h.  The trend seems to be to declare it as "int sprintf()".  It
 *	is up to the package author to declare sprintf correctly based on the
 *	symbol.
 */
/* #$d_charsprf	CHARSPRINTF 	/**/

/* FLEXFILENAMES:
 *	This symbol, if defined, indicates that the system supports filenames
 *	longer than 14 characters.
 */
#$d_flexfnam	FLEXFILENAMES		/**/

/* index:
 *	This preprocessor symbol is defined, along with rindex, if the system
 *	uses the strchr and strrchr routines instead.
 */
/* rindex:
 *	This preprocessor symbol is defined, along with index, if the system
 *	uses the strchr and strrchr routines instead.
 */
#$d_index	index strchr	/* cultural */
#$d_index	rindex strrchr	/*  differences? */

/* VOIDSIG:
 *	This symbol is defined if this system declares "void (*signal())()" in
 *	signal.h.  The old way was to declare it as "int (*signal())()".  It
 *	is up to the package author to declare things correctly based on the
 *	symbol.
 */
#$d_voidsig	VOIDSIG 	/**/

/* DIRHEADER:
 *	This definition indicates which directory library header to use.
 */
$d_dirheader

/* HAVE_UNISTD_H:
 *	This is defined if the system has unistd.h.
 */
#$d_unistd	HAVE_UNISTD_H	/**/

/* Reg1:
 *	This symbol, along with Reg2, Reg3, etc. is either the word "register"
 *	or null, depending on whether the C compiler pays attention to this
 *	many register declarations.  The intent is that you don't have to
 *	order your register declarations in the order of importance, so you
 *	can freely declare register variables in sub-blocks of code and as
 *	function parameters.  Do not use Reg<n> more than once per routine.
 */

#define Reg1 $reg1		/**/
#define Reg2 $reg2		/**/
#define Reg3 $reg3		/**/
#define Reg4 $reg4		/**/
#define Reg5 $reg5		/**/
#define Reg6 $reg6		/**/
#define Reg7 $reg7		/**/
#define Reg8 $reg8		/**/
#define Reg9 $reg9		/**/
#define Reg10 $reg10		/**/
#define Reg11 $reg11		/**/
#define Reg12 $reg12		/**/
#define Reg13 $reg13		/**/
#define Reg14 $reg14		/**/
#define Reg15 $reg15		/**/
#define Reg16 $reg16		/**/

/* VOIDFLAGS:
 *	This symbol indicates how much support of the void type is given by this
 *	compiler.  What various bits mean:
 *
 *	    1 = supports declaration of void
 *	    2 = supports arrays of pointers to functions returning void
 *	    4 = supports comparisons between pointers to void functions and
 *		    addresses of void functions
 *
 *	The package designer should define VOIDUSED to indicate the requirements
 *	of the package.  This can be done either by #defining VOIDUSED before
 *	including config.h, or by defining defvoidused in Myinit.U.  If the
 *	level of void support necessary is not present, defines void to int.
 */
#ifndef VOIDUSED
#define VOIDUSED $defvoidused
#endif
#define VOIDFLAGS $voidflags
#if (VOIDFLAGS & VOIDUSED) != VOIDUSED
#$define void int		/* is void to be avoided? */
#$define M_VOID		/* Xenix strikes again */
#endif

!GROK!THIS!