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diff --git a/Porting/Glossary b/Porting/Glossary new file mode 100644 index 0000000000..f1d3e97007 --- /dev/null +++ b/Porting/Glossary @@ -0,0 +1,1329 @@ +This file contains a description of all the shell variables whose value is +determined by the Configure script. Variables intended for use in C +programs (e.g. I_UNISTD) are already described in config_h.SH. + +alignbytes (alignbytes.U): + This variable holds the number of bytes required to align a + double. Usual values are 2, 4 and 8. + +ar (Unix.U): + This variable defines the command to use to create an archive + library. For unix, it is 'ar'. + +archlib (archlib.U): + This variable holds the name of the directory in which the user wants + to put architecture-dependent public library files for $package. + It is most often a local directory such as /usr/local/lib. + Programs using this variable must be prepared to deal + with filename expansion. + +archlibexp (archlib.U): + This variable is the same as the archlib variable, but is + filename expanded at configuration time, for convenient use. + +archobjs (Unix.U): + This variable defines any additional objects that must be linked + in with the program on this architecture. On unix, it is usually + empty. It is typically used to include emulations of unix calls + or other facilities. For perl on OS/2, for example, this would + include os2/os2.obj. + +bin (bin.U): + This variable holds the name of the directory in which the user wants + to put publicly executable images for the package in question. It + is most often a local directory such as /usr/local/bin. Programs using + this variable must be prepared to deal with ~name substitution. + +byteorder (byteorder.U): + This variable holds the byte order. In the following, larger digits + indicate more significance. The variable byteorder is either 4321 + on a big-endian machine, or 1234 on a little-endian, or 87654321 + on a Cray ... or 3412 with weird order ! + +c (n.U): + This variable contains the \c string if that is what causes the echo + command to suppress newline. Otherwise it is null. Correct usage is + $echo $n "prompt for a question: $c". + +castflags (d_castneg.U): + This variable contains a flag that precise difficulties the + compiler has casting odd floating values to unsigned long: + 0 = ok + 1 = couldn't cast < 0 + 2 = couldn't cast >= 0x80000000 + 4 = couldn't cast in argument expression list + +cc (cc.U): + This variable holds the name of a command to execute a C compiler which + can resolve multiple global references that happen to have the same + name. Usual values are "cc", "Mcc", "cc -M", and "gcc". + +cccdlflags (dlsrc.U): + This variable contains any special flags that might need to be + passed with cc -c to compile modules to be used to create a shared + library that will be used for dynamic loading. For hpux, this + should be +z. It is up to the makefile to use it. + +ccdlflags (dlsrc.U): + This variable contains any special flags that might need to be + passed to cc to link with a shared library for dynamic loading. + It is up to the makefile to use it. For sunos 4.1, it should + be empty. + +ccflags (ccflags.U): + This variable contains any additional C compiler flags desired by + the user. It is up to the Makefile to use this. + +cf_by (cf_who.U): + Login name of the person who ran the Configure script and answered the + questions. This is used to tag both config.sh and config_h.SH. + +cf_time (cf_who.U): + Holds the output of the "date" command when the configuration file was + produced. This is used to tag both config.sh and config_h.SH. + +cpp_stuff (cpp_stuff.U): + This variable contains an identification of the catenation mechanism + used by the C preprocessor. + +cppflags (ccflags.U): + This variable holds the flags that will be passed to the C pre- + processor. It is up to the Makefile to use it. + +cppminus (cppstdin.U): + This variable contains the second part of the string which will invoke + the C preprocessor on the standard input and produce to standard + output. This variable will have the value "-" if cppstdin needs a minus + to specify standard input, otherwise the value is "". + +cppstdin (cppstdin.U): + This variable contains the command which will invoke the C + preprocessor on standard input and put the output to stdout. + It is primarily used by other Configure units that ask about + preprocessor symbols. + +cryptlib (d_crypt.U): + This variable holds -lcrypt or the path to a libcrypt.a archive if + the crypt() function is not defined in the standard C library. It is + up to the Makefile to use this. + +d_Gconvert (d_gconvert.U): + This variable holds what Gconvert is defined as to convert + floating point numbers into strings. It could be 'gconvert' + or a more complex macro emulating gconvert with gcvt() or sprintf. + +d_access (d_access.U): + This variable conditionally defines HAS_ACCESS if the access() system + call is available to check for access permissions using real IDs. + +d_alarm (d_alarm.U): + This variable conditionally defines the HAS_ALARM symbol, which + indicates to the C program that the alarm() routine is available. + +d_archlib (archlib.U): + This variable conditionally defines ARCHLIB to hold the pathname + of architecture-dependent library files for $package. If + $archlib is the same as $privlib, then this is set to undef. + +d_bcmp (d_bcmp.U): + This variable conditionally defines the HAS_BCMP symbol if + the bcmp() routine is available to compare strings. + +d_bcopy (d_bcopy.U): + This variable conditionally defines the HAS_BCOPY symbol if + the bcopy() routine is available to copy strings. + +d_bsdpgrp (d_setpgrp.U): + This variable conditionally defines USE_BSDPGRP if the notion of + process group is the BSD one. This means setpgrp needs two arguments + whereas USG one needs none. + +d_bzero (d_bzero.U): + This variable conditionally defines the HAS_BZERO symbol if + the bzero() routine is available to set memory to 0. + +d_casti32 (d_casti32.U): + This variable conditionally defines CASTI32, which indicates + whether the C compiler can cast large floats to 32-bit ints. + +d_castneg (d_castneg.U): + This variable conditionally defines CASTNEG, which indicates + wether the C compiler can cast negative float to unsigned. + +d_charvspr (d_vprintf.U): + This variable conditionally defines CHARVSPRINTF if this system + has vsprintf returning type (char*). The trend seems to be to + declare it as "int vsprintf()". + +d_chown (d_chown.U): + This variable conditionally defines the HAS_CHOWN symbol, which + indicates to the C program that the chown() routine is available. + +d_chroot (d_chroot.U): + This variable conditionally defines the HAS_CHROOT symbol, which + indicates to the C program that the chroot() routine is available. + +d_chsize (d_chsize.U): + This variable conditionally defines the CHSIZE symbol, which + indicates to the C program that the chsize() routine is available + to truncate files. You might need a -lx to get this routine. + +d_const (d_const.U): + This variable conditionally defines the HASCONST symbol, which + indicates to the C program that this C compiler knows about the + const type. + +d_crypt (d_crypt.U): + This variable conditionally defines the CRYPT symbol, which + indicates to the C program that the crypt() routine is available + to encrypt passwords and the like. + +d_csh (d_csh.U): + This variable conditionally defines the CSH symbol, which + indicates to the C program that the C-shell exists. + +d_cuserid (d_cuserid.U): + This variable conditionally defines the HAS_CUSERID symbol, which + indicates to the C program that the cuserid() routine is available + to get character login names. + +d_dbl_dig (d_dbl_dig.U): + This variable conditionally defines d_dbl_dig if this system's + header files provide DBL_DIG, which is the number of significant + digits in a double precision number. + +d_difftime (d_difftime.U): + This variable conditionally defines the HAS_DIFFTIME symbol, which + indicates to the C program that the difftime() routine is available. + +d_dirnamlen (i_dirent.U): + This variable conditionally defines DIRNAMLEN, which indicates + to the C program that the length of directory entry names is + provided by a d_namelen field. + +d_dlerror (d_dlerror.U): + This variable conditionally defines the HAS_DLERROR symbol, which + indicates to the C program that the dlerror() routine is available. + +d_dlsymun (d_dlsymun.U): + This variable conditionally defines DLSYM_NEEDS_UNDERSCORE, which + indicates that we need to prepend an underscore to the symbol + name before calling dlsym(). + +d_dosuid (d_dosuid.U): + This variable conditionally defines the symbol DOSUID, which + tells the C program that it should insert setuid emulation code + on hosts which have setuid #! scripts disabled. + +d_dup2 (d_dup2.U): + This variable conditionally defines HAS_DUP2 if dup2() is + available to duplicate file descriptors. + +d_eofnblk (nblock_io.U): + This variable conditionally defines EOF_NONBLOCK if EOF can be seen + when reading from a non-blocking I/O source. + +d_fchmod (d_fchmod.U): + This variable conditionally defines the HAS_FCHMOD symbol, which + indicates to the C program that the fchmod() routine is available + to change mode of opened files. + +d_fchown (d_fchown.U): + This variable conditionally defines the HAS_FCHOWN symbol, which + indicates to the C program that the fchown() routine is available + to change ownership of opened files. + +d_fcntl (d_fcntl.U): + This variable conditionally defines the HAS_FCNTL symbol, and indicates + whether the fcntl() function exists + +d_fgetpos (d_fgetpos.U): + This variable conditionally defines HAS_FGETPOS if fgetpos() is + available to get the file position indicator. + +d_flexfnam (d_flexfnam.U): + This variable conditionally defines the FLEXFILENAMES symbol, which + indicates that the system supports filenames longer than 14 characters. + +d_flock (d_flock.U): + This variable conditionally defines HAS_FLOCK if flock() is + available to do file locking. + +d_fork (d_fork.U): + This variable conditionally defines the HAS_FORK symbol, which + indicates to the C program that the fork() routine is available. + +d_fpathconf (d_pathconf.U): + This variable conditionally defines the HAS_FPATHCONF symbol, which + indicates to the C program that the pathconf() routine is available + to determine file-system related limits and options associated + with a given open file descriptor. + +d_fsetpos (d_fsetpos.U): + This variable conditionally defines HAS_FSETPOS if fsetpos() is + available to set the file position indicator. + +d_gethent (d_gethent.U): + This variable conditionally defines HAS_GETHOSTENT if gethostent() is + available to dup file descriptors. + +d_getlogin (d_getlogin.U): + This variable conditionally defines the HAS_GETLOGIN symbol, which + indicates to the C program that the getlogin() routine is available + to get the login name. + +d_getpgrp (d_getpgrp.U): + This variable conditionally defines HAS_GETPGRP if getpgrp() is + available to get the current process group. + +d_getpgrp2 (d_getpgrp2.U): + This variable conditionally defines the HAS_GETPGRP2 symbol, which + indicates to the C program that the getpgrp2() (as in DG/UX) routine + is available to get the current process group. + +d_getppid (d_getppid.U): + This variable conditionally defines the HAS_GETPPID symbol, which + indicates to the C program that the getppid() routine is available + to get the parent process ID. + +d_getprior (d_getprior.U): + This variable conditionally defines HAS_GETPRIORITY if getpriority() + is available to get a process's priority. + +d_htonl (d_htonl.U): + This variable conditionally defines HAS_HTONL if htonl() and its + friends are available to do network order byte swapping. + +d_index (d_strchr.U): + This variable conditionally defines HAS_INDEX if index() and + rindex() are available for string searching. + +d_isascii (d_isascii.U): + This variable conditionally defines the HAS_ISASCII constant, + which indicates to the C program that isascii() is available. + +d_killpg (d_killpg.U): + This variable conditionally defines the HAS_KILLPG symbol, which + indicates to the C program that the killpg() routine is available + to kill process groups. + +d_link (d_link.U): + This variable conditionally defines HAS_LINK if link() is + available to create hard links. + +d_locconv (d_locconv.U): + This variable conditionally defines HAS_LOCALECONV if localeconv() is + available for numeric and monetary formatting conventions. + +d_lockf (d_lockf.U): + This variable conditionally defines HAS_LOCKF if lockf() is + available to do file locking. + +d_lstat (d_lstat.U): + This variable conditionally defines HAS_LSTAT if lstat() is + available to do file stats on symbolic links. + +d_mblen (d_mblen.U): + This variable conditionally defines the HAS_MBLEN symbol, which + indicates to the C program that the mblen() routine is available + to find the number of bytes in a multibye character. + +d_mbstowcs (d_mbstowcs.U): + This variable conditionally defines the HAS_MBSTOWCS symbol, which + indicates to the C program that the mbstowcs() routine is available + to convert a multibyte string into a wide character string. + +d_mbtowc (d_mbtowc.U): + This variable conditionally defines the HAS_MBTOWC symbol, which + indicates to the C program that the mbtowc() routine is available + to convert multibyte to a wide character. + +d_memcmp (d_memcmp.U): + This variable conditionally defines the HAS_MEMCMP symbol, which + indicates to the C program that the memcmp() routine is available + to compare blocks of memory. + +d_memcpy (d_memcpy.U): + This variable conditionally defines the HAS_MEMCPY symbol, which + indicates to the C program that the memcpy() routine is available + to copy blocks of memory. + +d_memmove (d_memmove.U): + This variable conditionally defines the HAS_MEMMOVE symbol, which + indicates to the C program that the memmove() routine is available + to copy potentatially overlapping blocks of memory. + +d_memset (d_memset.U): + This variable conditionally defines the HAS_MEMSET symbol, which + indicates to the C program that the memset() routine is available + to set blocks of memory. + +d_mkdir (d_mkdir.U): + This variable conditionally defines the HAS_MKDIR symbol, which + indicates to the C program that the mkdir() routine is available + to create directories.. + +d_mkfifo (d_mkfifo.U): + This variable conditionally defines the HAS_MKFIFO symbol, which + indicates to the C program that the mkfifo() routine is available. + +d_mktime (d_mktime.U): + This variable conditionally defines the HAS_MKTIME symbol, which + indicates to the C program that the mktime() routine is available. + +d_msg (d_msg.U): + This variable conditionally defines the HAS_MSG symbol, which + indicates that the entire msg*(2) library is present. + +d_mymalloc (mallocsrc.U): + This variable conditionally defines MYMALLOC in case other parts + of the source want to take special action if MYMALLOC is used. + This may include different sorts of profiling or error detection. + +d_nice (d_nice.U): + This variable conditionally defines the HAS_NICE symbol, which + indicates to the C program that the nice() routine is available. + +d_oldarchlib (oldarchlib.U): + This variable conditionally defines OLDARCHLIB to hold the pathname + of architecture-dependent library files for a previous + version of $package. + +d_open3 (d_open3.U): + This variable conditionally defines the HAS_OPEN3 manifest constant, + which indicates to the C program that the 3 argument version of + the open(2) function is available. + +d_pathconf (d_pathconf.U): + This variable conditionally defines the HAS_PATHCONF symbol, which + indicates to the C program that the pathconf() routine is available + to determine file-system related limits and options associated + with a given filename. + +d_pause (d_pause.U): + This variable conditionally defines the HAS_PAUSE symbol, which + indicates to the C program that the pause() routine is available + to suspend a process until a signal is received. + +d_pipe (d_pipe.U): + This variable conditionally defines the HAS_PIPE symbol, which + indicates to the C program that the pipe() routine is available + to create an inter-process channel. + +d_poll (d_poll.U): + This variable conditionally defines the HAS_POLL symbol, which + indicates to the C program that the poll() routine is available + to poll active file descriptors. + +d_pwage (i_pwd.U): + This varaible conditionally defines PWAGE, which indicates + that struct passwd contains pw_age. + +d_pwchange (i_pwd.U): + This varaible conditionally defines PWCHANGE, which indicates + that struct passwd contains pw_change. + +d_pwclass (i_pwd.U): + This varaible conditionally defines PWCLASS, which indicates + that struct passwd contains pw_class. + +d_pwcomment (i_pwd.U): + This varaible conditionally defines PWCOMMENT, which indicates + that struct passwd contains pw_comment. + +d_pwexpire (i_pwd.U): + This varaible conditionally defines PWEXPIRE, which indicates + that struct passwd contains pw_expire. + +d_pwquota (i_pwd.U): + This varaible conditionally defines PWQUOTA, which indicates + that struct passwd contains pw_quota. + +d_readdir (d_readdir.U): + This variable conditionally defines HAS_READDIR if readdir() is + available to read directory entries. + +d_readlink (d_readlink.U): + This variable conditionally defines the HAS_READLINK symbol, which + indicates to the C program that the readlink() routine is available + to read the value of a symbolic link. + +d_rename (d_rename.U): + This variable conditionally defines the HAS_RENAME symbol, which + indicates to the C program that the rename() routine is available + to rename files. + +d_rewinddir (d_readdir.U): + This variable conditionally defines HAS_REWINDDIR if rewinddir() is + available. + +d_rmdir (d_rmdir.U): + This variable conditionally defines HAS_RMDIR if rmdir() is + available to remove directories. + +d_safebcpy (d_safebcpy.U): + This variable conditionally defines the HAS_SAFE_BCOPY symbol if + the bcopy() routine can do overlapping copies. + +d_safemcpy (d_safemcpy.U): + This variable conditionally defines the HAS_SAFE_MEMCPY symbol if + the memcpy() routine can do overlapping copies. + +d_seekdir (d_readdir.U): + This variable conditionally defines HAS_SEEKDIR if seekdir() is + available. + +d_select (d_select.U): + This variable conditionally defines HAS_SELECT if select() is + available to select active file descriptors. A <sys/time.h> + inclusion may be necessary for the timeout field. + +d_sem (d_sem.U): + This variable conditionally defines the HAS_SEM symbol, which + indicates that the entire sem*(2) library is present. + +d_setegid (d_setegid.U): + This variable conditionally defines the HAS_SETEGID symbol, which + indicates to the C program that the setegid() routine is available + to change the effective gid of the current program. + +d_seteuid (d_seteuid.U): + This variable conditionally defines the HAS_SETEUID symbol, which + indicates to the C program that the seteuid() routine is available + to change the effective uid of the current program. + +d_setlinebuf (d_setlnbuf.U): + This variable conditionally defines the HAS_SETLINEBUF symbol, which + indicates to the C program that the setlinebuf() routine is available + to change stderr or stdout from block-buffered or unbuffered to a + line-buffered mode. + +d_setlocale (d_setlocale.U): + This variable conditionally defines HAS_SETLOCALE if setlocale() is + available to handle locale-specific ctype implementations. + +d_setpgid (d_setpgid.U): + This variable conditionally defines HAS_SETPGID if setpgid() is + available to set process group ID. + +d_setpgrp (d_setpgrp.U): + This variable conditionally defines HAS_SETPGRP if setpgrp() is + available to set the current process group. + +d_setpgrp2 (d_setpgrp2.U): + This variable conditionally defines the HAS_SETPGRP2 symbol, which + indicates to the C program that the setpgrp2() (as in DG/UX) routine + is available to set the current process group. + +d_setprior (d_setprior.U): + This variable conditionally defines HAS_SETPRIORITY if setpriority() + is available to set a process's priority. + +d_setregid (d_setregid.U): + This variable conditionally defines HAS_SETREGID if setregid() is + available to change the real and effective gid of the current + process. + +d_setresgid (d_setregid.U): + This variable conditionally defines HAS_SETRESGID if setresgid() is + available to change the real, effective and saved gid of the current + process. + +d_setresuid (d_setreuid.U): + This variable conditionally defines HAS_SETREUID if setresuid() is + available to change the real, effective and saved uid of the current + process. + +d_setreuid (d_setreuid.U): + This variable conditionally defines HAS_SETREUID if setreuid() is + available to change the real and effective uid of the current + process. + +d_setrgid (d_setrgid.U): + This variable conditionally defines the HAS_SETRGID symbol, which + indicates to the C program that the setrgid() routine is available + to change the real gid of the current program. + +d_setruid (d_setruid.U): + This variable conditionally defines the HAS_SETRUID symbol, which + indicates to the C program that the setruid() routine is available + to change the real uid of the current program. + +d_setsid (d_setsid.U): + This variable conditionally defines HAS_SETSID if setsid() is + available to set the process group ID. + +d_sfio (d_sfio.U): + This variable conditionally defines the USE_SFIO symbol, + and indicates whether sfio is available (and should be used). + +d_shm (d_shm.U): + This variable conditionally defines the HAS_SHM symbol, which + indicates that the entire shm*(2) library is present. + +d_shmatprototype (d_shmat.U): + This variable conditionally defines the HAS_SHMAT_PROTOTYPE + symbol, which indicates that sys/shm.h has a prototype for + shmat. + +d_sigaction (d_sigaction.U): + This variable conditionally defines the HAS_SIGACTION symbol, which + indicates that the Vr4 sigaction() routine is available. + +d_sigsetjmp (d_sigsetjmp.U): + This variable conditionally defines the HAS_SIGSETJMP symbol, + which indicates that the sigsetjmp() routine is available to + call setjmp() and optionally save the process's signal mask. + +d_socket (d_socket.U): + This variable conditionally defines HAS_SOCKET, which indicates + that the BSD socket interface is supported. + +d_sockpair (d_socket.U): + This variable conditionally defines the HAS_SOCKETPAIR symbol, which + indicates that the BSD socketpair() is supported. + +d_statblks (d_statblks.U): + This variable conditionally defines USE_STAT_BLOCKS if this system + has a stat structure declaring st_blksize and st_blocks. + +d_stdio_cnt_lval (d_stdstdio.U): + This variable conditionally defines STDIO_CNT_LVALUE if the + FILE_cnt macro can be used as an lvalue. + +d_stdio_ptr_lval (d_stdstdio.U): + This variable conditionally defines STDIO_PTR_LVALUE if the + FILE_ptr macro can be used as an lvalue. + +d_stdiobase (d_stdstdio.U): + This variable conditionally defines USE_STDIO_BASE if this system + has a FILE structure declaring a usable _base field (or equivalent) + in stdio.h. + +d_stdstdio (d_stdstdio.U): + This variable conditionally defines USE_STDIO_PTR if this system + has a FILE structure declaring usable _ptr and _cnt fields (or + equivalent) in stdio.h. + +d_strchr (d_strchr.U): + This variable conditionally defines HAS_STRCHR if strchr() and + strrchr() are available for string searching. + +d_strcoll (d_strcoll.U): + This variable conditionally defines HAS_STRCOLL if strcoll() is + available to compare strings using collating information. + +d_strctcpy (d_strctcpy.U): + This variable conditionally defines the USE_STRUCT_COPY symbol, which + indicates to the C program that this C compiler knows how to copy + structures. + +d_strerrm (d_strerror.U): + This variable holds what Strerrr is defined as to translate an error + code condition into an error message string. It could be 'strerror' + or a more complex macro emulating strrror with sys_errlist[], or the + "unknown" string when both strerror and sys_errlist are missing. + +d_strerror (d_strerror.U): + This variable conditionally defines HAS_STRERROR if strerror() is + available to translate error numbers to strings. + +d_strxfrm (d_strxfrm.U): + This variable conditionally defines HAS_STRXFRM if strxfrm() is + available to transform strings. + +d_suidsafe (d_dosuid.U): + This variable conditionally defines SETUID_SCRIPTS_ARE_SECURE_NOW + if setuid scripts can be secure. This test looks in /dev/fd/. + +d_symlink (d_symlink.U): + This variable conditionally defines the HAS_SYMLINK symbol, which + indicates to the C program that the symlink() routine is available + to create symbolic links. + +d_syscall (d_syscall.U): + This variable conditionally defines HAS_SYSCALL if syscall() is + available call arbitrary system calls. + +d_sysconf (d_sysconf.U): + This variable conditionally defines the HAS_SYSCONF symbol, which + indicates to the C program that the sysconf() routine is available + to determine system related limits and options. + +d_syserrlst (d_strerror.U): + This variable conditionally defines HAS_SYS_ERRLIST if sys_errlist[] is + available to translate error numbers to strings. + +d_system (d_system.U): + This variable conditionally defines HAS_SYSTEM if system() is + available to issue a shell command. + +d_tcgetpgrp (d_tcgtpgrp.U): + This variable conditionally defines the HAS_TCGETPGRP symbol, which + indicates to the C program that the tcgetpgrp() routine is available. + to get foreground process group ID. + +d_tcsetpgrp (d_tcstpgrp.U): + This variable conditionally defines the HAS_TCSETPGRP symbol, which + indicates to the C program that the tcsetpgrp() routine is available + to set foreground process group ID. + +d_telldir (d_readdir.U): + This variable conditionally defines HAS_TELLDIR if telldir() is + available. + +d_times (d_times.U): + This variable conditionally defines the HAS_TIMES symbol, which indicates + that the times() routine exists. The times() routine is normaly + provided on UNIX systems. You may have to include <sys/times.h>. + +d_truncate (d_truncate.U): + This variable conditionally defines HAS_TRUNCATE if truncate() is + available to truncate files. + +d_tzname (d_tzname.U): + This variable conditionally defines HAS_TZNAME if tzname[] is + available to access timezone names. + +d_umask (d_umask.U): + This variable conditionally defines the HAS_UMASK symbol, which + indicates to the C program that the umask() routine is available. + to set and get the value of the file creation mask. + +d_uname (d_gethname.U): + This variable conditionally defines the HAS_UNAME symbol, which + indicates to the C program that the uname() routine may be + used to derive the host name. + +d_vfork (d_vfork.U): + This variable conditionally defines the HAS_VFORK symbol, which + indicates the vfork() routine is available. + +d_void_closedir (d_closedir.U): + This variable conditionally defines VOID_CLOSEDIR if closedir() + does not return a value. + +d_volatile (d_volatile.U): + This variable conditionally defines the HASVOLATILE symbol, which + indicates to the C program that this C compiler knows about the + volatile declaration. + +d_vprintf (d_vprintf.U): + This variable conditionally defines the HAS_VPRINTF symbol, which + indicates to the C program that the vprintf() routine is available + to printf with a pointer to an argument list. + +d_wait4 (d_wait4.U): + This variable conditionally defines the HAS_WAIT4 symbol, which + indicates the wait4() routine is available. + +d_waitpid (d_waitpid.U): + This variable conditionally defines HAS_WAITPID if waitpid() is + available to wait for child process. + +d_wcstombs (d_wcstombs.U): + This variable conditionally defines the HAS_WCSTOMBS symbol, which + indicates to the C program that the wcstombs() routine is available + to convert wide character strings to multibyte strings. + +d_wctomb (d_wctomb.U): + This variable conditionally defines the HAS_WCTOMB symbol, which + indicates to the C program that the wctomb() routine is available + to convert a wide character to a multibyte. + +db_hashtype (i_db.U): + This variable contains the type of the hash structure element + in the <db.h> header file. In older versions of DB, it was + int, while in newer ones it is u_int32_t. + +db_prefixtype (i_db.U): + This variable contains the type of the prefix structure element + in the <db.h> header file. In older versions of DB, it was + int, while in newer ones it is size_t. + +direntrytype (i_dirent.U): + This symbol is set to 'struct direct' or 'struct dirent' depending on + whether dirent is available or not. You should use this pseudo type to + portably declare your directory entries. + +dlext (dlext.U): + This variable contains the extension that is to be used for the + dynamically loaded modules that perl generaties. + +dlsrc (dlsrc.U): + This variable contains the name of the dynamic loading file that + will be used with the package. + +dynamic_ext (Extensions.U): + This variable holds a list of extension files we want to + link dynamically into the package. It is used by Makefile. + +eagain (nblock_io.U): + This variable bears the symbolic errno code set by read() when no + data is present on the file and non-blocking I/O was enabled (otherwise, + read() blocks naturally). + +eunicefix (Init.U): + When running under Eunice this variable contains a command which will + convert a shell script to the proper form of text file for it to be + executable by the shell. On other systems it is a no-op. + +exe_ext (Unix.U): + This variable defines the extension used for executable files. + For unix it is empty. Other possible values include '.exe'. + +firstmakefile (Unix.U): + This variable defines the first file searched by make. On unix, + it is makefile (then Makefile). On case-insensitive systems, + it might be something else. This is only used to deal with + convoluted make depend tricks. + +fpostype (fpostype.U): + This variable defines Fpos_t to be something like fpost_t, long, + uint, or whatever type is used to declare file positions in libc. + +freetype (mallocsrc.U): + This variable contains the return type of free(). It is usually + void, but occasionally int. + +full_csh (d_csh.U): + This variable contains the full pathname to 'csh', whether or + not the user has specified 'portability'. This is only used + in the compiled C program, and we assume that all systems which + can share this executable will have the same full pathname to + 'csh.' + +full_sed (Loc_sed.U): + This variable contains the full pathname to 'sed', whether or + not the user has specified 'portability'. This is only used + in the compiled C program, and we assume that all systems which + can share this executable will have the same full pathname to + 'sed.' + +gidtype (gidtype.U): + This variable defines Gid_t to be something like gid_t, int, + ushort, or whatever type is used to declare the return type + of getgid(). Typically, it is the type of group ids in the kernel. + +groupstype (groupstype.U): + This variable defines Groups_t to be something like gid_t, int, + ushort, or whatever type is used for the second argument to + getgroups(). Usually, this is the same of gidtype, but + sometimes it isn't. + +i_dirent (i_dirent.U): + This variable conditionally defines I_DIRENT, which indicates + to the C program that it should include <dirent.h>. + +i_dlfcn (i_dlfcn.U): + This variable conditionally defines the I_DLFCN symbol, which + indicates to the C program that <dlfcn.h> exists and should + be included. + +i_fcntl (i_fcntl.U): + This variable controls the value of I_FCNTL (which tells + the C program to include <fcntl.h>). + +i_float (i_float.U): + This variable conditionally defines the I_FLOAT symbol, and indicates + whether a C program may include <float.h> to get symbols like DBL_MAX + or DBL_MIN, i.e. machine dependent floating point values. + +i_grp (i_grp.U): + This variable conditionally defines the I_GRP symbol, and indicates + whether a C program should include <grp.h>. + +i_limits (i_limits.U): + This variable conditionally defines the I_LIMITS symbol, and indicates + whether a C program may include <limits.h> to get symbols like WORD_BIT + and friends. + +i_locale (i_locale.U): + This variable conditionally defines the I_LOCALE symbol, + and indicates whether a C program should include <locale.h>. + +i_math (i_math.U): + This variable conditionally defines the I_MATH symbol, and indicates + whether a C program may include <math.h>. + +i_memory (i_memory.U): + This variable conditionally defines the I_MEMORY symbol, and indicates + whether a C program should include <memory.h>. + +i_neterrno (i_neterrno.U): + This variable conditionally defines the I_NET_ERRNO symbol, which + indicates to the C program that <net/errno.h> exists and should + be included. + +i_niin (i_niin.U): + This variable conditionally defines I_NETINET_IN, which indicates + to the C program that it should include <netinet/in.h>. Otherwise, + you may try <sys/in.h>. + +i_pwd (i_pwd.U): + This variable conditionally defines I_PWD, which indicates + to the C program that it should include <pwd.h>. + +i_rpcsvcdbm (i_dbm.U): + This variable conditionally defines the I_RPCSVC_DBM symbol, which + indicates to the C program that <rpcsvc/dbm.h> exists and should + be included. Some System V systems might need this instead of <dbm.h>. + +i_sfio (i_sfio.U): + This variable conditionally defines the I_SFIO symbol, + and indicates whether a C program should include <sfio.h>. + +i_sgtty (i_termio.U): + This variable conditionally defines the I_SGTTY symbol, which + indicates to the C program that it should include <sgtty.h> rather + than <termio.h>. + +i_stdarg (i_varhdr.U): + This variable conditionally defines the I_STDARG symbol, which + indicates to the C program that <stdarg.h> exists and should + be included. + +i_stddef (i_stddef.U): + This variable conditionally defines the I_STDDEF symbol, which + indicates to the C program that <stddef.h> exists and should + be included. + +i_stdlib (i_stdlib.U): + This variable conditionally defines the I_STDLIB symbol, which + indicates to the C program that <stdlib.h> exists and should + be included. + +i_string (i_string.U): + This variable conditionally defines the I_STRING symbol, which + indicates that <string.h> should be included rather than <strings.h>. + +i_sysdir (i_sysdir.U): + This variable conditionally defines the I_SYS_DIR symbol, and indicates + whether a C program should include <sys/dir.h>. + +i_sysfile (i_sysfile.U): + This variable conditionally defines the I_SYS_FILE symbol, and indicates + whether a C program should include <sys/file.h> to get R_OK and friends. + +i_sysioctl (i_sysioctl.U): + This variable conditionally defines the I_SYS_IOCTL symbol, which + indicates to the C program that <sys/ioctl.h> exists and should + be included. + +i_sysndir (i_sysndir.U): + This variable conditionally defines the I_SYS_NDIR symbol, and indicates + whether a C program should include <sys/ndir.h>. + +i_sysparam (i_sysparam.U): + This variable conditionally defines the I_SYS_PARAM symbol, and indicates + whether a C program should include <sys/param.h>. + +i_sysresrc (i_sysresrc.U): + This variable conditionally defines the I_SYS_RESOURCE symbol, + and indicates whether a C program should include <sys/resource.h>. + +i_sysselct (i_sysselct.U): + This variable conditionally defines I_SYS_SELECT, which indicates + to the C program that it should include <sys/select.h> in order to + get the definition of struct timeval. + +i_sysstat (i_sysstat.U): + This variable conditionally defines the I_SYS_STAT symbol, + and indicates whether a C program should include <sys/stat.h>. + +i_systime (i_time.U): + This variable conditionally defines I_SYS_TIME, which indicates + to the C program that it should include <sys/time.h>. + +i_systimek (i_time.U): + This variable conditionally defines I_SYS_TIME_KERNEL, which + indicates to the C program that it should include <sys/time.h> + with KERNEL defined. + +i_systimes (i_systimes.U): + This variable conditionally defines the I_SYS_TIMES symbol, and indicates + whether a C program should include <sys/times.h>. + +i_systypes (i_systypes.U): + This variable conditionally defines the I_SYS_TYPES symbol, + and indicates whether a C program should include <sys/types.h>. + +i_sysun (i_sysun.U): + This variable conditionally defines I_SYS_UN, which indicates + to the C program that it should include <sys/un.h> to get UNIX + domain socket definitions. + +i_syswait (i_syswait.U): + This variable conditionally defines I_SYS_WAIT, which indicates + to the C program that it should include <sys/wait.h>. + +i_termio (i_termio.U): + This variable conditionally defines the I_TERMIO symbol, which + indicates to the C program that it should include <termio.h> rather + than <sgtty.h>. + +i_termios (i_termio.U): + This variable conditionally defines the I_TERMIOS symbol, which + indicates to the C program that the POSIX <termios.h> file is + to be included. + +i_time (i_time.U): + This variable conditionally defines I_TIME, which indicates + to the C program that it should include <time.h>. + +i_unistd (i_unistd.U): + This variable conditionally defines the I_UNISTD symbol, and indicates + whether a C program should include <unistd.h>. + +i_utime (i_utime.U): + This variable conditionally defines the I_UTIME symbol, and indicates + whether a C program should include <utime.h>. + +i_values (i_values.U): + This variable conditionally defines the I_VALUES symbol, and indicates + whether a C program may include <values.h> to get symbols like MAXLONG + and friends. + +i_varargs (i_varhdr.U): + This variable conditionally defines I_VARARGS, which indicates + to the C program that it should include <varargs.h>. + +i_varhdr (i_varhdr.U): + Contains the name of the header to be included to get va_dcl definition. + Typically one of varargs.h or stdarg.h. + +i_vfork (i_vfork.U): + This variable conditionally defines the I_VFORK symbol, and indicates + whether a C program should include vfork.h. + +installbin (bin.U): + This variable is the same as binexp unless AFS is running in which case + the user is explicitely prompted for it. This variable should always + be used in your makefiles for maximum portability. + +installprivlib (privlib.U): + This variable is really the same as privlibexp but may differ on + those systems using AFS. For extra portability, only this variable + should be used in makefiles. + +intsize (intsize.U): + This variable contains the value of the INTSIZE symbol, + which indicates to the C program how many bytes there are + in an integer. + +large (models.U): + This variable contains a flag which will tell the C compiler and loader + to produce a program running with a large memory model. It is up to + the Makefile to use this. + +ld (dlsrc.U): + This variable indicates the program to be used to link + libraries for dynamic loading. On some systems, it is 'ld'. + On ELF systems, it should be $cc. Mostly, we'll try to respect + the hint file setting. + +lddlflags (dlsrc.U): + This variable contains any special flags that might need to be + passed to $ld to create a shared library suitable for dynamic + loading. It is up to the makefile to use it. For hpux, it + should be -b. For sunos 4.1, it is empty. + +ldflags (ccflags.U): + This variable contains any additional C loader flags desired by + the user. It is up to the Makefile to use this. + +lib_ext (Unix.U): + This variable defines the extension used for ordinary libraries. + For unix, it is '.a'. The '.' is included. Other possible + values include '.lib'. + +libperl (libperl.U): + The perl executable is obtained by linking perlmain.c with + libperl, any static extensions (usually just DynaLoader), + and any other libraries needed on this system. libperl + is usually libperl.a, but can also be libperl.so.xxx if + the user wishes to build a perl executable with a shared + library. + +libs (libs.U): + This variable holds the additional libraries we want to use. + It is up to the Makefile to deal with it. + +lns (lns.U): + This variable holds the name of the command to make + symbolic links (if they are supported). It can be used + in the Makefile. It is either 'ln -s' or 'ln' + +lseektype (lseektype.U): + This variable defines lseektype to be something like off_t, long, + or whatever type is used to declare lseek offset's type in the + kernel (which also appears to be lseek's return type). + +make (make.U): + This variable sets the path to the 'make' command. It is + here rather than in Loc.U so that users can override it + with Configure -Dmake=pmake, or equivalent. + +make_set_make (make.U): + Some versions of 'make' set the variable MAKE. Others do not. + This variable contains the string to be included in Makefile.SH + so that MAKE is set if needed, and not if not needed. + Possible values are: + make_set_make='#' # If your make program handles this for you, + make_set_make=$make # if it doesn't. + I used a comment character so that we can distinguish a + 'set' value (from a previous config.sh or Configure -D option) + from an uncomputed value. + +mallocobj (mallocsrc.U): + This variable contains the name of the malloc.o that this package + generates, if that malloc.o is preferred over the system malloc. + Otherwise the value is null. This variable is intended for generating + Makefiles. See mallocsrc. + +mallocsrc (mallocsrc.U): + This variable contains the name of the malloc.c that comes with + the package, if that malloc.c is preferred over the system malloc. + Otherwise the value is null. This variable is intended for generating + Makefiles. + +malloctype (mallocsrc.U): + This variable contains the kind of ptr returned by malloc and realloc. + +man1dir (man1dir.U): + This variable contains the name of the directory in which manual + source pages are to be put. It is the responsibility of the + Makefile.SH to get the value of this into the proper command. + You must be prepared to do the ~name expansion yourself. + +man1ext (man1dir.U): + This variable contains the extension that the manual page should + have: one of 'n', 'l', or '1'. The Makefile must supply the '.'. + See man1dir. + +man3dir (man3dir.U): + This variable contains the name of the directory in which manual + source pages are to be put. It is the responsibility of the + Makefile.SH to get the value of this into the proper command. + You must be prepared to do the ~name expansion yourself. + +man3ext (man3dir.U): + This variable contains the extension that the manual page should + have: one of 'n', 'l', or '3'. The Makefile must supply the '.'. + See man3dir. + +modetype (modetype.U): + This variable defines modetype to be something like mode_t, + int, unsigned short, or whatever type is used to declare file + modes for system calls. + +n (n.U): + This variable contains the -n flag if that is what causes the echo + command to suppress newline. Otherwise it is null. Correct usage is + $echo $n "prompt for a question: $c". + +o_nonblock (nblock_io.U): + This variable bears the symbol value to be used during open() or fcntl() + to turn on non-blocking I/O for a file descriptor. If you wish to switch + between blocking and non-blocking, you may try ioctl(FIOSNBIO) instead, + but that is only supported by some devices. + +oldarchlib (oldarchlib.U): + This variable holds the name of the directory in which perl5.000 + and perl5.001 stored + architecture-dependent public library files. + +oldarchlibexp (oldarchlib.U): + This variable is the same as the oldarchlib variable, but is + filename expanded at configuration time, for convenient use. + +optimize (ccflags.U): + This variable contains any optimizer/debugger flag that should be used. + It is up to the Makefile to use it. + +osname (Oldconfig.U): + This variable contains the operating system name (e.g. sunos, + solaris, hpux, etc.). It can be useful later on for setting + defaults. Any spaces are replaced with underscores. It is set + to a null string if we can't figure it out. + +pager (pager.U): + This variable contains the name of the preferred pager on the system. + Usual values are (the full pathnames of) more, less, pg, or cat. + +path_sep (Unix.U): + This variable defines the character used to separate elements in + the shell's PATH environment variable. On Unix, it is ':'. + This is probably identical to Head.U's p_ variable and can + probably be dropped. + +perladmin (perladmin.U): + Electronic mail address of the perl5 administrator. + +prefix (prefix.U): + This variable holds the name of the directory below which the + user will install the package. Usually, this is /usr/local, and + executables go in /usr/local/bin, library stuff in /usr/local/lib, + man pages in /usr/local/man, etc. It is only used to set defaults + for things in bin.U, mansrc.U, privlib.U, or scriptdir.U. + +privlib (privlib.U): + This variable contains the eventual value of the PRIVLIB symbol, + which is the name of the private library for this package. It may + have a ~ on the front. It is up to the makefile to eventually create + this directory while performing installation (with ~ substitution). + +privlibexp (privlib.U): + This variable is the ~name expanded version of privlib, so that you + may use it directly in Makefiles or shell scripts. + +prototype (prototype.U): + This variable holds the eventual value of CAN_PROTOTYPE, which + indicates the C compiler can handle funciton prototypes. + +randbits (randbits.U): + This variable contains the eventual value of the RANDBITS symbol, + which indicates to the C program how many bits of random number + the rand() function produces. + +ranlib (orderlib.U): + This variable is set to the pathname of the ranlib program, if it is + needed to generate random libraries. Set to ":" if ar can generate + random libraries or if random libraries are not supported + +rd_nodata (nblock_io.U): + This variable holds the return code from read() when no data is + present. It should be -1, but some systems return 0 when O_NDELAY is + used, which is a shame because you cannot make the difference between + no data and an EOF.. Sigh! + +scriptdir (scriptdir.U): + This variable holds the name of the directory in which the user wants + to put publicly scripts for the package in question. It is either + the same directory as for binaries, or a special one that can be + mounted across different architectures, like /usr/share. Programs + must be prepared to deal with ~name expansion. + +selecttype (selecttype.U): + This variable holds the type used for the 2nd, 3rd, and 4th + arguments to select. Usually, this is 'fd_set *', if HAS_FD_SET + is defined, and 'int *' otherwise. This is only useful if you + have select(), naturally. + +sh (sh.U): + This variable contains the full pathname of the shell used + on this system to execute Bourne shell scripts. Usually, this will be + /bin/sh, though it's possible that some systems will have /bin/ksh, + /bin/pdksh, /bin/ash, /bin/bash, or even something such as D:/bin/sh. + This unit comes before Options.U, so you can't set sh with a -D + option, though you can override this (and startsh) + with -O -Dsh=/bin/whatever -Dstartsh=whatever + +shmattype (d_shmat.U): + This symbol contains the type of pointer returned by shmat(). + It can be 'void *' or 'char *'. + +sig_name (sig_name.U): + This variable holds the signal names, space separated. The leading + SIG in signals name is removed. See sig_num. + +sig_num (sig_name.U): + This variable holds the signal numbers, space separated. Those numbers + correspond to the value of the signal listed in the same place within + the sig_name list. + +signal_t (d_voidsig.U): + This variable holds the type of the signal handler (void or int). + +sitearch (sitearch.U): + This variable contains the eventual value of the SITEARCH symbol, + which is the name of the private library for this package. It may + have a ~ on the front. It is up to the makefile to eventually create + this directory while performing installation (with ~ substitution). + +sitearchexp (sitearch.U): + This variable is the ~name expanded version of sitearch, so that you + may use it directly in Makefiles or shell scripts. + +sitelib (sitelib.U): + This variable contains the eventual value of the SITELIB symbol, + which is the name of the private library for this package. It may + have a ~ on the front. It is up to the makefile to eventually create + this directory while performing installation (with ~ substitution). + +sitelibexp (sitelib.U): + This variable is the ~name expanded version of sitelib, so that you + may use it directly in Makefiles or shell scripts. + +sizetype (sizetype.U): + This variable defines sizetype to be something like size_t, + unsigned long, or whatever type is used to declare length + parameters for string functions. + +small (models.U): + This variable contains a flag which will tell the C compiler and loader + to produce a program running with a small memory model. It is up to + the Makefile to use this. + +spitshell (spitshell.U): + This variable contains the command necessary to spit out a runnable + shell on this system. It is either cat or a grep -v for # comments. + +split (models.U): + This variable contains a flag which will tell the C compiler and loader + to produce a program that will run in separate I and D space, for those + machines that support separation of instruction and data space. It is + up to the Makefile to use this. + +ssizetype (ssizetype.U): + This variable defines ssizetype to be something like ssize_t, + long or int. It is used by functions that return a count + of bytes or an error condition. It must be a signed type. + We will pick a type such that sizeof(SSize_t) == sizeof(Size_t). + +startperl (startperl.U): + This variable contains the string to put on the front of a perl + script to make sure (hopefully) that it runs with perl and not some + shell. Of course, that leading line must be followed by the classical + perl idiom: + eval 'exec perl -S $0 "$@"' + if $running_under_some_shell; + to guarantee perl startup should the shell execute the script. Note + that this magic incatation is not understood by csh. + +startsh (startsh.U): + This variable contains the string to put on the front of a shell + script to make sure (hopefully) that it runs with sh and not some + other shell. + +static_ext (Extensions.U): + This variable holds a list of extension files we want to + link statically into the package. It is used by Makefile. + +stdchar (stdchar.U): + This variable conditionally defines STDCHAR to be the type of char + used in stdio.h. It has the values "unsigned char" or "char". + +timetype (d_time.U): + This variable holds the type returned by time(). It can be long, + or time_t on BSD sites (in which case <sys/types.h> should be + included). Anyway, the type Time_t should be used. + +uidtype (uidtype.U): + This variable defines Uid_t to be something like uid_t, int, + ushort, or whatever type is used to declare user ids in the kernel. + +useperlio (useperlio.U): + This variable conditionally defines the USE_PERLIO symbol, + and indicates that the PerlIO abstraction should be + used throughout. + +useshrplib (libperl.U): + This variable is set to 'yes' if the user wishes + to build a shared libperl, and 'no' otherwise. + +voidflags (voidflags.U): + This variable contains the eventual value of the VOIDFLAGS symbol, + which indicates how much support of the void type is given by this + compiler. See VOIDFLAGS for more info. + |