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- case $CONFIG in
- '')
- if test ! -f config.sh; then
- ln ../config.sh . || \
- ln ../../config.sh . || \
- ln ../../../config.sh . || \
- (echo "Can't find config.sh."; exit 1)
- echo "Using config.sh from above..."
- fi
- . ./config.sh
- ;;
- esac
- echo "Extracting config.h (with variable substitutions)"
- sed <<!GROK!THIS! >config.h -e 's!^#undef!/\*#undef!'
- /* config.h
- * This file was produced by running the config.h.SH script, which
- * gets its values from config.sh, which is generally produced by
- * running Configure.
- *
- * Feel free to modify any of this as the need arises. Note, however,
- * that running config.h.SH again will wipe out any changes you've made.
- * For a more permanent change edit config.sh and rerun config.h.SH.
- */
-
-
- /* EUNICE:
- * This symbol, if defined, indicates that the program is being compiled
- * under the EUNICE package under VMS. The program will need to handle
- * things like files that don't go away the first time you unlink them,
- * due to version numbering. It will also need to compensate for lack
- * of a respectable link() command.
- */
- /* VMS:
- * This symbol, if defined, indicates that the program is running under
- * VMS. It is currently only set in conjunction with the EUNICE symbol.
- */
- #$d_eunice EUNICE /**/
- #$d_eunice VMS /**/
-
- /* BCOPY:
- * This symbol, if defined, indicates that the bcopy routine is available
- * to copy blocks of memory. Otherwise you should probably use memcpy().
- */
- #$d_bcopy BCOPY /**/
-
- /* 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.
- */
- #$d_charsprf CHARSPRINTF /**/
-
- /* index:
- * This preprocessor symbol is defined, along with rindex, if the system
- * uses the strchr and strrchr routines instead.
- */
- /* rindex:
- * This preprocessor symbol is defined, along with index, if the system
- * uses the strchr and strrchr routines instead.
- */
- #$d_index index strchr /* cultural */
- #$d_index rindex strrchr /* differences? */
-
- /* MEMCPY:
- * This symbol, if defined, indicates that the memcpy routine is available
- * to copy blocks of memory. Otherwise you should probably use bcopy().
- * If neither is defined, roll your own.
- */
- #$d_memcpy MEMCPY /**/
-
- /* 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"
-
- /* REREAD
- * This variable indicates that the function "read" is normally restarted
- * when the process receives an interrupt (like SIGINT). This is the
- * default behaviour on e.g. BSD4.3 and SUN OS 3.5.
- */
- #$d_reread REREAD /**/
-
- /* TERMIO:
- * This symbol, if defined, indicates that the program should include
- * termio.h rather than sgtty.h. There are also differences in the
- * ioctl() calls that depend on the value of this symbol.
- */
- /* SYSTERMIO:
- * This variable, if defined, indicates that the termio header files
- * are in "/usr/include/sys" rather than in "/usr/include".
- */
- #$d_termio TERMIO /**/
- #$systermio SYSTERMIO /**/
-
- /* look4char
- * This variable indicates how a program may look whether characters
- * are available from a terminal.
- * Unfortunately the ways to do this differ; some but not all may be available
- * on a given system, but there may even be some performance differences.
- * Each way is tagged with a name. If look4char contains this name,
- * the corresponding way to look for characters is used.
- * The ways and names are:
- * USE_SELECT : the system call "select" (man section 2) is available and
- * works. This is usually the case on 4BSD derived systems like
- * 43BSD, SunOS 3.5.
- * There are some systems like SIEMENS MX2 SINIX 2.1 that have
- * "select" but it does not work on terminals.
- * Expected return values:
- * 0 : no characters available, timeout
- * -1 : some error occured, e.g. intr, error number in errno.
- * else : (1 << fd) : filedescriptor for which stuff is available
- * USE_RDCHK : the system has the routine "rdchk". This is usually the
- * case on SYS III derived systems.
- * It is called as "ret = rdchk(fd)" and returns
- * -1 : error, 0 : no char available, 1 : char available
- * USE_FIONREAD: there is an ioctl with parameter "FIONREAD" which returns the
- * number of characters available from a given filedescriptor.
- * It is called as "ret = ioctl(fd, FIONREAD, &num)" where "ret",
- * "num" and "fd" are integers.
- * The numbers of available characters is returned in "num".
- * This is usually the case on 4BSD systems. On some systems both
- * "rdchk" and "FIONREAD" are available (SINIX 2.1), on some both
- * "select" and "FIONREAD" are possible (BSD), use "select".
- */
- #define USE_SELECT 1
- #define USE_RDCHK 2
- #define USE_FIONREAD 3
- #define LOOK4CHAR $look4char
-
- /* wait4char
- * This variable indicates how a program may wait until either characters
- * are available from a terminal or a specified amount of time has elapsed.
- * Unfortunately the ways to do this differ; some but not all may be available
- * on a given system, but there may even be some performance differences.
- * Each way is tagged with a name. If wait4char contains this name,
- * the corresponding way to wait for characters is used.
- * The ways and names are:
- * USE_SELECT : the system call "select" (man section 2) is available and
- * works. This is usually the case on 4BSD derived systems like
- * 43BSD, SunOS 3.5.
- * There are some systems like SIEMENS MX2 SINIX 2.1 that have
- * "select" but it does not work on terminals.
- * Expected return values:
- * 0 : no characters available, timeout
- * -1 : some error occured, e.g. intr, error number in errno.
- * else : (1 << fd) : filedescriptor for which stuff is available
- * Advantage: the program does not spend time.
- * Disadvantage: on some machines, like on a VAX 11/780 running
- * 4.3BSD, the clock is not very accurate.
- * USE_RDCHK : the system has the routine "rdchk". This is usually the
- * case on SYS III derived systems.
- * It is called as "ret = rdchk(fd)" and returns
- * -1 : error, 0 : no char available, 1 : char available
- * Advantage: quite accurate, even on loaded systems.
- * Disadvantage: spends time looping and looking repeatedly.
- */
- #define WAIT4CHAR $wait4char
-
- !GROK!THIS!
-