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* doc/autoconf.texi (Particular Headers): Some more sorting.

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Use `@multitable'.
This commit is contained in:
Akim Demaille 2000-05-11 10:08:48 +00:00
parent bf8eaa27de
commit 5db458bb73
2 changed files with 52 additions and 50 deletions
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@ -1,3 +1,8 @@
2000-05-11 Akim Demaille <akim@epita.fr>
* doc/autoconf.texi (Particular Headers): Some more sorting.
Use `@multitable'.
2000-05-11 Akim Demaille <akim@epita.fr>
* acspecific.m4 (_AC_CHECK_HEADER_DIRENT): Use more modern

97
doc/autoconf.texi
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@ -3121,45 +3121,6 @@ it, then you can use one of the general header file check macros.
These macros check for particular system header files---whether they
exist, and in some cases whether they declare certain symbols.
@defmac AC_HEADER_STAT
@maindex HEADER_STAT
@maindex STAT_MACROS_BROKEN
If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in
@file{sys/stat.h} do not work properly (returning false positives),
define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV,
Amdahl UTS and Motorola System V/88.
@end defmac
@defmac AC_HEADER_TIME
@maindex HEADER_TIME
@cvindex TIME_WITH_SYS_TIME
If a program may include both @file{time.h} and @file{sys/time.h},
define @code{TIME_WITH_SYS_TIME}. On some older systems,
@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not
protected against multiple inclusion, so programs should not explicitly
include both files. This macro is useful in programs that use, for
example, @code{struct timeval} or @code{struct timezone} as well as
@code{struct tm}. It is best used in conjunction with
@code{HAVE_SYS_TIME_H}, which can be checked for using
@code{AC_CHECK_HEADERS(sys/time.h)}.
@example
@group
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
@end group
@end example
@end defmac
@defmac AC_HEADER_DIRENT
@maindex HEADER_DIRENT
@cvindex HAVE_DIRENT_H
@ -3169,17 +3130,12 @@ example, @code{struct timeval} or @code{struct timezone} as well as
Check for the following header files, and for the first one that is
found and defines @samp{DIR}, define the listed C preprocessor macro:
@c The printed table looks too spaced out with blank lines between the entries.
@table @file
@item dirent.h
@code{HAVE_DIRENT_H}
@item sys/ndir.h
@code{HAVE_SYS_NDIR_H}
@item sys/dir.h
@code{HAVE_SYS_DIR_H}
@item ndir.h
@code{HAVE_NDIR_H}
@end table
@multitable {@file{sys/ndir.h}} {@code{HAVE_SYS_NDIR_H}}
@item @file{dirent.h} @tab @code{HAVE_DIRENT_H}
@item @file{sys/ndir.h} @tab @code{HAVE_SYS_NDIR_H}
@item @file{sys/dir.h} @tab @code{HAVE_SYS_DIR_H}
@item @file{ndir.h} @tab @code{HAVE_NDIR_H}
@end multitable
The directory library declarations in the source code should look
something like the following:
@ -3223,6 +3179,47 @@ If @file{sys/types.h} does not define @code{major}, @code{minor}, and
@code{MAJOR_IN_SYSMACROS}.
@end defmac
@defmac AC_HEADER_STAT
@maindex HEADER_STAT
@maindex STAT_MACROS_BROKEN
If the macros @code{S_ISDIR}, @code{S_ISREG} et al. defined in
@file{sys/stat.h} do not work properly (returning false positives),
define @code{STAT_MACROS_BROKEN}. This is the case on Tektronix UTekV,
Amdahl UTS and Motorola System V/88.
@end defmac
@defmac AC_HEADER_TIME
@maindex HEADER_TIME
@cvindex TIME_WITH_SYS_TIME
If a program may include both @file{time.h} and @file{sys/time.h},
define @code{TIME_WITH_SYS_TIME}. On some older systems,
@file{sys/time.h} includes @file{time.h}, but @file{time.h} is not
protected against multiple inclusion, so programs should not explicitly
include both files. This macro is useful in programs that use, for
example, @code{struct timeval} or @code{struct timezone} as well as
@code{struct tm}. It is best used in conjunction with
@code{HAVE_SYS_TIME_H}, which can be checked for using
@code{AC_CHECK_HEADERS(sys/time.h)}.
@example
@group
#if TIME_WITH_SYS_TIME
# include <sys/time.h>
# include <time.h>
#else
# if HAVE_SYS_TIME_H
# include <sys/time.h>
# else
# include <time.h>
# endif
#endif
@end group
@end example
@end defmac
@defmac AC_HEADER_STDC
@maindex HEADER_STDC
@cvindex STDC_HEADERS