/* system.h: system-dependent declarations; include this first. $Id: system.h,v 1.12 2004/04/26 13:56:57 karl Exp $ Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #ifndef TEXINFO_SYSTEM_H #define TEXINFO_SYSTEM_H #define _GNU_SOURCE #include #ifdef MIKTEX #include #define S_ISDIR(x) ((x)&_S_IFDIR) #else /* MiKTeX defines substring() in a separate DLL, where it has its own __declspec declaration. We don't want to try to duplicate this Microsoft-ism here. */ extern char *substring (const char *, const char *); #endif /* We follow the order of header inclusion from Autoconf's ac_includes_default, more or less. */ #include #include #include /* All systems nowadays probably have these functions, but ... */ #ifdef HAVE_LOCALE_H #include #endif #ifndef HAVE_SETLOCALE #define setlocale(category,locale) /* empty */ #endif /* For gettext (NLS). */ #define const #include "gettext.h" #undef const #define _(String) gettext (String) #define N_(String) (String) #ifdef STDC_HEADERS #define getopt system_getopt #include #undef getopt #else extern char *getenv (); #endif /* Don't use bcopy! Use memmove if source and destination may overlap, memcpy otherwise. */ #if HAVE_STRING_H # if !STDC_HEADERS && HAVE_MEMORY_H # include # endif # include #endif #if HAVE_STRINGS_H /* Always include if we have it. This is because that's what Autoconf's AC_CHECK_DECL does. On IBM AIX 4.2, strncasecmp is only declared in strings.h. */ # include #endif #if !HAVE_STRNCASECMP || !HAVE_STRCASECMP # include "strcase.h" #endif #if !HAVE_DECL_MEMCHR char *memchr (); #endif /* defines _POSIX_VERSION, but Paul Eggert points out that is only supposed to be used in user code, not other system headers. */ #ifdef HAVE_UNISTD_H #include #endif /* HAVE_UNISTD_H */ #include #ifndef errno extern int errno; #endif #ifdef VMS #include #endif #ifndef HAVE_DECL_STRERROR extern char *strerror (); #endif #ifdef HAVE_LIMITS_H #include #endif #ifndef PATH_MAX #ifndef _POSIX_PATH_MAX # define _POSIX_PATH_MAX 255 #endif #define PATH_MAX _POSIX_PATH_MAX #endif #ifndef HAVE_DECL_STRCASECMP extern int strcasecmp (); #endif #ifndef HAVE_DECL_STRNCASECMP extern int strncasecmp (); #endif #ifndef HAVE_DECL_STRCOLL extern int strcoll (); #endif #include #if STAT_MACROS_BROKEN # undef S_ISDIR #endif #if !defined(S_ISDIR) && defined(S_IFDIR) # define S_ISDIR(mode) (((mode) & S_IFMT) == S_IFDIR) #endif #ifdef HAVE_SYS_FILE_H #include #endif /* HAVE_SYS_FILE_H */ #ifndef O_RDONLY /* Since is POSIX, prefer that to . This also avoids some useless warnings on (at least) Linux. */ #ifdef HAVE_FCNTL_H #include #else /* not HAVE_FCNTL_H */ #ifdef HAVE_SYS_FCNTL_H #include #endif /* not HAVE_SYS_FCNTL_H */ #endif /* not HAVE_FCNTL_H */ #endif /* not O_RDONLY */ /* MS-DOS and similar non-Posix systems have some peculiarities: - they distinguish between binary and text files; - they use both `/' and `\\' as directory separator in file names; - they can have a drive letter X: prepended to a file name; - they have a separate root directory on each drive; - their filesystems are case-insensitive; - directories in environment variables (like INFOPATH) are separated by `;' rather than `:'; - text files can have their lines ended either with \n or with \r\n pairs; These are all parameterized here except the last, which is handled by the source code as appropriate (mostly, in info/). */ #ifndef O_BINARY # ifdef _O_BINARY # define O_BINARY _O_BINARY # else # define O_BINARY 0 # endif #endif /* O_BINARY */ /* We'd like to take advantage of _doprnt if it's around, a la error.c, but then we'd have no VA_SPRINTF. */ #if HAVE_VPRINTF # if __STDC__ # include # define VA_START(args, lastarg) va_start(args, lastarg) # else # include # define VA_START(args, lastarg) va_start(args) # endif # define VA_FPRINTF(file, fmt, ap) vfprintf (file, fmt, ap) # define VA_SPRINTF(str, fmt, ap) vsprintf (str, fmt, ap) #else /* not HAVE_VPRINTF */ # define VA_START(args, lastarg) # define va_alist a1, a2, a3, a4, a5, a6, a7, a8 # define va_dcl char *a1, *a2, *a3, *a4, *a5, *a6, *a7, *a8; # define va_end(args) #endif #if O_BINARY # ifdef HAVE_IO_H # include # endif # ifdef __MSDOS__ # include # ifdef __DJGPP__ # define HAVE_LONG_FILENAMES(dir) (pathconf (dir, _PC_NAME_MAX) > 12) # define NULL_DEVICE "/dev/null" # define DEFAULT_INFOPATH "c:/djgpp/info;/usr/local/info;/usr/info;." /* DJGPP supports /dev/null, which is okay for Unix aficionados, shell scripts and Makefiles, but interactive DOS die-hards would probably want to have NUL as well. */ # define ALSO_NULL_DEVICE "NUL" # else /* O_BINARY && !__DJGPP__ */ # define HAVE_LONG_FILENAMES(dir) (0) # define NULL_DEVICE "NUL" # endif /* O_BINARY && !__DJGPP__ */ # define SET_SCREEN_SIZE_HELPER terminal_prep_terminal() # define DEFAULT_INFO_PRINT_COMMAND ">PRN" # else /* O_BINARY && !__MSDOS__ */ # define setmode(f,m) _setmode(f,m) # define HAVE_LONG_FILENAMES(dir) (1) # define NULL_DEVICE "NUL" # endif /* O_BINARY && !__MSDOS__ */ # ifdef __CYGWIN__ # define DEFAULT_TMPDIR "/tmp/" # define PATH_SEP ":" # else /* O_BINARY && !__CYGWIN__ */ # define DEFAULT_TMPDIR "c:/" # define PATH_SEP ";" # endif /* O_BINARY && !__CYGWIN__ */ /* Back to any O_BINARY system. */ # define FILENAME_CMP strcasecmp # define FILENAME_CMPN strncasecmp # define FOPEN_RBIN "rb" # define FOPEN_WBIN "wb" # define HAVE_DRIVE(n) ((n)[0] && (n)[1] == ':') # define IS_SLASH(c) ((c) == '/' || (c) == '\\') # define IS_ABSOLUTE(n) (IS_SLASH((n)[0]) || ((n)[0] && (n)[1] == ':')) # define PIPE_USE_FORK 0 # define SET_BINARY(f) do {if (!isatty(f)) setmode(f,O_BINARY);} while(0) # define STRIP_DOT_EXE 1 #else /* not O_BINARY, i.e., Unix */ # define SET_BINARY(f) (void)0 # define FOPEN_RBIN "r" # define FOPEN_WBIN "w" # define IS_SLASH(c) ((c) == '/') # define HAVE_DRIVE(n) (0) # define IS_ABSOLUTE(n) ((n)[0] == '/') # define FILENAME_CMP strcmp # define FILENAME_CMPN strncmp # define HAVE_LONG_FILENAMES(dir) (1) # define PATH_SEP ":" # define STRIP_DOT_EXE 0 # ifdef VMS # define DEFAULT_TMPDIR "sys$scratch:" # else # define DEFAULT_TMPDIR "/tmp/" # endif # define NULL_DEVICE "/dev/null" # define PIPE_USE_FORK 1 #endif /* not O_BINARY */ /* Everything but DJGPP. */ #ifndef ALSO_NULL_DEVICE # define ALSO_NULL_DEVICE "" #endif #ifdef HAVE_PWD_H #include #endif /* Some systems don't declare this function in pwd.h. */ struct passwd *getpwnam (const char *name); /* Our library routines not included in any system library. */ extern void *xmalloc (size_t), *xrealloc (void *, size_t); extern char *xstrdup (const char *); extern void xexit (int); /* For convenience. */ #define STREQ(s1,s2) (strcmp (s1, s2) == 0) #define STRCASEEQ(s1,s2) (strcasecmp (s1, s2) == 0) #define STRNCASEEQ(s1,s2,n) (strncasecmp (s1, s2, n) == 0) /* We don't need anything fancy. If we did need something fancy, gnulib has it. */ #ifdef MIN #undef MIN #endif #define MIN(a,b) ((a) < (b) ? (a) : (b)) #ifdef MAX #undef MAX #endif #define MAX(a,b) ((a) > (b) ? (a) : (b)) #endif /* TEXINFO_SYSTEM_H */